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lancet/docs/.vitepress/dist/assets/api_packages_concurrency.md.02593d84.js
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import{_ as l,o as p,c as o,k as s,a,X as n}from"./chunks/framework.6e839c56.js";const D=JSON.parse('{"title":"Concurrency","description":"","frontmatter":{},"headers":[],"relativePath":"api/packages/concurrency.md","filePath":"api/packages/concurrency.md"}'),e={name:"api/packages/concurrency.md"},c=s("h1",{id:"Concurrency",tabindex:"-1"},[a("Concurrency "),s("a",{class:"header-anchor",href:"#Concurrency","aria-label":'Permalink to "Concurrency"'},"​")],-1),t=s("p",null,"并发包包含一些支持并发编程的功能。例如：goroutine, channel 等。",-1),r=s("div",{STYLE:"page-break-after: always;"},null,-1),y=s("h2",{id:"源码-",tabindex:"-1"},[a("源码: "),s("a",{class:"header-anchor",href:"#源码-","aria-label":'Permalink to "源码:"'},"​")],-1),F=s("ul",null,[s("li",null,[s("a",{href:"https://github.com/duke-git/lancet/blob/main/concurrency/channel.go",target:"_blank",rel:"noreferrer"},"https://github.com/duke-git/lancet/blob/main/concurrency/channel.go")])],-1),i=s("div",{STYLE:"page-break-after: always;"},null,-1),A=n(`<h2 id="用法-" tabindex="-1">用法: <a class="header-anchor" href="#用法-" aria-label="Permalink to &quot;用法:&quot;">​</a></h2><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span></code></pre></div>`,2),E=s("div",{STYLE:"page-break-after: always;"},null,-1),u=n('<h2 id="目录" tabindex="-1">目录 <a class="header-anchor" href="#目录" aria-label="Permalink to &quot;目录&quot;">​</a></h2><h3 id="Channel" tabindex="-1">Channel <a class="header-anchor" href="#Channel" aria-label="Permalink to &quot;Channel&quot;">​</a></h3><ul><li><a href="#NewChannel">NewChannel</a></li><li><a href="#Bridge">Bridge</a></li><li><a href="#FanIn">FanIn</a></li><li><a href="#Generate">Generate</a></li><li><a href="#Or">Or</a></li><li><a href="#OrDone">OrDone</a></li><li><a href="#Repeat">Repeat</a></li><li><a href="#RepeatFn">RepeatFn</a></li><li><a href="#Take">Take</a></li><li><a href="#Tee">Tee</a></li></ul>',3),d=s("div",{STYLE:"page-break-after: always;"},null,-1),h=n(`<h2 id="文档" tabindex="-1">文档 <a class="header-anchor" href="#文档" aria-label="Permalink to &quot;文档&quot;">​</a></h2><h3 id="Channel-1" tabindex="-1">Channel <a class="header-anchor" href="#Channel-1" aria-label="Permalink to &quot;Channel&quot;">​</a></h3><h3 id="NewChannel" tabindex="-1"><span id="NewChannel">NewChannel</span> <a class="header-anchor" href="#NewChannel" aria-label="Permalink to &quot;&lt;span id=&quot;NewChannel&quot;&gt;NewChannel&lt;/span&gt;&quot;">​</a></h3><p>返回一个Channel指针实例</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">type</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;font-style:italic;">Channel</span><span style="color:#F6F6F4;">[T any] </span><span style="color:#F286C4;">struct</span></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> NewChannel[T any]() </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">type</span><span style="color:#393A34;"> </span><span style="color:#2E8F82;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T any</span><span style="color:#999999;">]</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">struct</span></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> NewChannel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T any</span><span style="color:#999999;">]()</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">]</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/7aB4KyMMp9A" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">int</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="Bridge" tabindex="-1"><span id="Bridge">Bridge</span> <a class="header-anchor" href="#Bridge" aria-label="Permalink to &quot;&lt;span id=&quot;Bridge&quot;&gt;Bridge&lt;/span&gt;&quot;">​</a></h3><p>将多个channel链接到一个channel，直到取消上下文。</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">Bridge</span><span style="color:#F6F6F4;">(ctx context.Context, chanStream </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;">chan</span><span style="color:#EE6666;font-style:italic;text-decoration:underline;"> </span><span style="color:#F6F6F4;">&lt;-</span><span style="color:#F286C4;">chan</span><span style="color:#F6F6F4;"> T) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Bridge</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx context</span><span style="color:#999999;">.</span><span style="color:#393A34;">Context</span><span style="color:#999999;">,</span><span style="color:#393A34;"> chanStream </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;">chan</span><span style="color:#B31D28;font-style:italic;"> </span><span style="color:#393A34;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/qmWSy1NVF-Y" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> ctx, cancel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> context.</span><span style="color:#97E1F1;">WithCancel</span><span style="color:#F6F6F4;">(context.</span><span style="color:#97E1F1;">Background</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">cancel</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> genVals </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;">() </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;">chan</span><span style="color:#EE6666;font-style:italic;text-decoration:underline;"> </span><span style="color:#F6F6F4;">&lt;-</span><span style="color:#F286C4;">chan</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;"> {</span></span>
<span class="line"><span style="color:#F6F6F4;"> out </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">make</span><span style="color:#F6F6F4;">(</span><span style="color:#F286C4;">chan</span><span style="color:#F6F6F4;"> (</span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">))</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">go</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">close</span><span style="color:#F6F6F4;">(out)</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> i </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">1</span><span style="color:#F6F6F4;">; i </span><span style="color:#F286C4;">&lt;=</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">5</span><span style="color:#F6F6F4;">; i</span><span style="color:#F286C4;">++</span><span style="color:#F6F6F4;"> {</span></span>
<span class="line"><span style="color:#F6F6F4;"> stream </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">make</span><span style="color:#F6F6F4;">(</span><span style="color:#F286C4;">chan</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">, </span><span style="color:#BF9EEE;">1</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> stream </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;"> i</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">close</span><span style="color:#F6F6F4;">(stream)</span></span>
<span class="line"><span style="color:#F6F6F4;"> out </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;"> stream</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"><span style="color:#F6F6F4;"> }()</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">return</span><span style="color:#F6F6F4;"> out</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> v </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">range</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Bridge</span><span style="color:#F6F6F4;">(ctx, </span><span style="color:#97E1F1;">genVals</span><span style="color:#F6F6F4;">()) {</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(v)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 2</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 3</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 4</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 5</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">cancel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> context</span><span style="color:#999999;">.</span><span style="color:#998418;">WithCancel</span><span style="color:#999999;">(</span><span style="color:#393A34;">context</span><span style="color:#999999;">.</span><span style="color:#998418;">Background</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">cancel</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">int</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">genVals</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">func</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;">chan</span><span style="color:#B31D28;font-style:italic;"> </span><span style="color:#393A34;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">int</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">out</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#998418;">make</span><span style="color:#999999;">(</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">int</span><span style="color:#999999;">))</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">go</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">func</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">close</span><span style="color:#999999;">(</span><span style="color:#393A34;">out</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">i</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">1</span><span style="color:#999999;">;</span><span style="color:#393A34;"> i </span><span style="color:#AB5959;">&lt;=</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">5</span><span style="color:#999999;">;</span><span style="color:#393A34;"> i</span><span style="color:#AB5959;">++</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">stream</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#998418;">make</span><span style="color:#999999;">(</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">int</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">1</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> stream </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;"> i</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#998418;">close</span><span style="color:#999999;">(</span><span style="color:#393A34;">stream</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> out </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;"> stream</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">return</span><span style="color:#393A34;"> out</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">v</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">range</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Bridge</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#998418;">genVals</span><span style="color:#999999;">())</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">v</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 2</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 3</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 4</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 5</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="FanIn" tabindex="-1"><span id="FanIn">FanIn</span> <a class="header-anchor" href="#FanIn" aria-label="Permalink to &quot;&lt;span id=&quot;FanIn&quot;&gt;FanIn&lt;/span&gt;&quot;">​</a></h3><p>将多个channel合并为一个channel，直到取消上下文。</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">FanIn</span><span style="color:#F6F6F4;">(ctx context.Context, channels </span><span style="color:#F286C4;">...&lt;-chan</span><span style="color:#F6F6F4;"> T) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">FanIn</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx context</span><span style="color:#999999;">.</span><span style="color:#393A34;">Context</span><span style="color:#999999;">,</span><span style="color:#393A34;"> channels </span><span style="color:#AB5959;">...&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/2VYFMexEvTm" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> ctx, cancel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> context.</span><span style="color:#97E1F1;">WithCancel</span><span style="color:#F6F6F4;">(context.</span><span style="color:#97E1F1;">Background</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">cancel</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> channels </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">make</span><span style="color:#F6F6F4;">([]</span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">, </span><span style="color:#BF9EEE;">2</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> i </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">0</span><span style="color:#F6F6F4;">; i </span><span style="color:#F286C4;">&lt;</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">2</span><span style="color:#F6F6F4;">; i</span><span style="color:#F286C4;">++</span><span style="color:#F6F6F4;"> {</span></span>
<span class="line"><span style="color:#F6F6F4;"> channels[i] </span><span style="color:#F286C4;">=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Take</span><span style="color:#F6F6F4;">(ctx, c.</span><span style="color:#97E1F1;">Repeat</span><span style="color:#F6F6F4;">(ctx, i), </span><span style="color:#BF9EEE;">2</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> chs </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">FanIn</span><span style="color:#F6F6F4;">(ctx, channels</span><span style="color:#F286C4;">...</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> v </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">range</span><span style="color:#F6F6F4;"> chs {</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(v) </span><span style="color:#7B7F8B;">//1 1 0 0 or 0 0 1 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">cancel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> context</span><span style="color:#999999;">.</span><span style="color:#998418;">WithCancel</span><span style="color:#999999;">(</span><span style="color:#393A34;">context</span><span style="color:#999999;">.</span><span style="color:#998418;">Background</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">cancel</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">int</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">channels</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#998418;">make</span><span style="color:#999999;">([]</span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">int</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">2</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">i</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">0</span><span style="color:#999999;">;</span><span style="color:#393A34;"> i </span><span style="color:#AB5959;">&lt;</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">2</span><span style="color:#999999;">;</span><span style="color:#393A34;"> i</span><span style="color:#AB5959;">++</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> channels</span><span style="color:#999999;">[</span><span style="color:#393A34;">i</span><span style="color:#999999;">]</span><span style="color:#393A34;"> </span><span style="color:#999999;">=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Take</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Repeat</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> i</span><span style="color:#999999;">),</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">2</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">chs</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">FanIn</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> channels</span><span style="color:#AB5959;">...</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">v</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">range</span><span style="color:#393A34;"> chs </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">v</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">//1 1 0 0 or 0 0 1 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="Generate" tabindex="-1"><span id="Generate">Generate</span> <a class="header-anchor" href="#Generate" aria-label="Permalink to &quot;&lt;span id=&quot;Generate&quot;&gt;Generate&lt;/span&gt;&quot;">​</a></h3><p>根据传入的值，生成channel.</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">Generate</span><span style="color:#F6F6F4;">(ctx context.Context, values </span><span style="color:#F286C4;">...</span><span style="color:#F6F6F4;">T) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Generate</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx context</span><span style="color:#999999;">.</span><span style="color:#393A34;">Context</span><span style="color:#999999;">,</span><span style="color:#393A34;"> values </span><span style="color:#AB5959;">...</span><span style="color:#393A34;">T</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/7aB4KyMMp9A" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> ctx, cancel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> context.</span><span style="color:#97E1F1;">WithCancel</span><span style="color:#F6F6F4;">(context.</span><span style="color:#97E1F1;">Background</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">cancel</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> intStream </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Generate</span><span style="color:#F6F6F4;">(ctx, </span><span style="color:#BF9EEE;">1</span><span style="color:#F6F6F4;">, </span><span style="color:#BF9EEE;">2</span><span style="color:#F6F6F4;">, </span><span style="color:#BF9EEE;">3</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(</span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;">intStream)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(</span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;">intStream)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(</span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;">intStream)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 2</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 3</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">cancel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> context</span><span style="color:#999999;">.</span><span style="color:#998418;">WithCancel</span><span style="color:#999999;">(</span><span style="color:#393A34;">context</span><span style="color:#999999;">.</span><span style="color:#998418;">Background</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">cancel</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">int</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">intStream</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Generate</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">1</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">2</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">3</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;">intStream</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;">intStream</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;">intStream</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 2</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 3</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="Repeat" tabindex="-1"><span id="Repeat">Repeat</span> <a class="header-anchor" href="#Repeat" aria-label="Permalink to &quot;&lt;span id=&quot;Repeat&quot;&gt;Repeat&lt;/span&gt;&quot;">​</a></h3><p>返回一个channel，将参数\`values\`重复放入channel，直到取消上下文。</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">Repeat</span><span style="color:#F6F6F4;">(ctx context.Context, values </span><span style="color:#F286C4;">...</span><span style="color:#F6F6F4;">T) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Repeat</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx context</span><span style="color:#999999;">.</span><span style="color:#393A34;">Context</span><span style="color:#999999;">,</span><span style="color:#393A34;"> values </span><span style="color:#AB5959;">...</span><span style="color:#393A34;">T</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/k5N_ALVmYjE" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> ctx, cancel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> context.</span><span style="color:#97E1F1;">WithCancel</span><span style="color:#F6F6F4;">(context.</span><span style="color:#97E1F1;">Background</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">cancel</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> intStream </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Take</span><span style="color:#F6F6F4;">(ctx, c.</span><span style="color:#97E1F1;">Repeat</span><span style="color:#F6F6F4;">(ctx, </span><span style="color:#BF9EEE;">1</span><span style="color:#F6F6F4;">, </span><span style="color:#BF9EEE;">2</span><span style="color:#F6F6F4;">), </span><span style="color:#BF9EEE;">4</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> v </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">range</span><span style="color:#F6F6F4;"> intStream {</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(v)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 2</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 2</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">cancel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> context</span><span style="color:#999999;">.</span><span style="color:#998418;">WithCancel</span><span style="color:#999999;">(</span><span style="color:#393A34;">context</span><span style="color:#999999;">.</span><span style="color:#998418;">Background</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">cancel</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">int</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">intStream</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Take</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Repeat</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">1</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">2</span><span style="color:#999999;">),</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">4</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">v</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">range</span><span style="color:#393A34;"> intStream </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">v</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 2</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 2</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="RepeatFn" tabindex="-1"><span id="RepeatFn">RepeatFn</span> <a class="header-anchor" href="#RepeatFn" aria-label="Permalink to &quot;&lt;span id=&quot;RepeatFn&quot;&gt;RepeatFn&lt;/span&gt;&quot;">​</a></h3><p>返回一个channel，重复执行函数fn，并将结果放入返回的channel，直到取消上下文。</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">RepeatFn</span><span style="color:#F6F6F4;">(ctx context.Context, fn </span><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;">() T) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">RepeatFn</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx context</span><span style="color:#999999;">.</span><span style="color:#393A34;">Context</span><span style="color:#999999;">,</span><span style="color:#393A34;"> fn </span><span style="color:#1E754F;">func</span><span style="color:#999999;">()</span><span style="color:#393A34;"> T</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/4J1zAWttP85" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> ctx, cancel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> context.</span><span style="color:#97E1F1;">WithCancel</span><span style="color:#F6F6F4;">(context.</span><span style="color:#97E1F1;">Background</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">cancel</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fn </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;">() </span><span style="color:#97E1F1;font-style:italic;">string</span><span style="color:#F6F6F4;"> {</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">return</span><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">hello</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">string</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> intStream </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Take</span><span style="color:#F6F6F4;">(ctx, c.</span><span style="color:#97E1F1;">RepeatFn</span><span style="color:#F6F6F4;">(ctx, fn), </span><span style="color:#BF9EEE;">3</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> v </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">range</span><span style="color:#F6F6F4;"> intStream {</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(v)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// hello</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// hello</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// hello</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">cancel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> context</span><span style="color:#999999;">.</span><span style="color:#998418;">WithCancel</span><span style="color:#999999;">(</span><span style="color:#393A34;">context</span><span style="color:#999999;">.</span><span style="color:#998418;">Background</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">cancel</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">fn</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">func</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">string</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">return</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">hello</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">string</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">intStream</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Take</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">RepeatFn</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> fn</span><span style="color:#999999;">),</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">3</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">v</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">range</span><span style="color:#393A34;"> intStream </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">v</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// hello</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// hello</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// hello</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="Or" tabindex="-1"><span id="Or">Or</span> <a class="header-anchor" href="#Or" aria-label="Permalink to &quot;&lt;span id=&quot;Or&quot;&gt;Or&lt;/span&gt;&quot;">​</a></h3><p>将一个或多个channel读取到一个channel中，当任何读取channel关闭时将结束读取。</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">Or</span><span style="color:#F6F6F4;">(channels </span><span style="color:#F286C4;">...&lt;-chan</span><span style="color:#F6F6F4;"> T) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Or</span><span style="color:#999999;">(</span><span style="color:#393A34;">channels </span><span style="color:#AB5959;">...&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/Wqz9rwioPww" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> sig </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;">(after time.Duration) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> any {</span></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">make</span><span style="color:#F6F6F4;">(</span><span style="color:#F286C4;">chan</span><span style="color:#F6F6F4;"> any)</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">go</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">close</span><span style="color:#F6F6F4;">(c)</span></span>
<span class="line"><span style="color:#F6F6F4;"> time.</span><span style="color:#97E1F1;">Sleep</span><span style="color:#F6F6F4;">(after)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }()</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">return</span><span style="color:#F6F6F4;"> c</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> start </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> time.</span><span style="color:#97E1F1;">Now</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[any]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;">c.</span><span style="color:#97E1F1;">Or</span><span style="color:#F6F6F4;">(</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">sig</span><span style="color:#F6F6F4;">(</span><span style="color:#BF9EEE;">1</span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">time.Second),</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">sig</span><span style="color:#F6F6F4;">(</span><span style="color:#BF9EEE;">2</span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">time.Second),</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">sig</span><span style="color:#F6F6F4;">(</span><span style="color:#BF9EEE;">3</span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">time.Second),</span></span>
<span class="line"><span style="color:#F6F6F4;"> )</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">done after </span><span style="color:#BF9EEE;">%v</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">, time.</span><span style="color:#97E1F1;">Since</span><span style="color:#F6F6F4;">(start)) </span><span style="color:#7B7F8B;">//1.003s</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">sig</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">func</span><span style="color:#999999;">(</span><span style="color:#393A34;">after time</span><span style="color:#999999;">.</span><span style="color:#393A34;">Duration</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> any </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#998418;">make</span><span style="color:#999999;">(</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> any</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">go</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">func</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">close</span><span style="color:#999999;">(</span><span style="color:#393A34;">c</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> time</span><span style="color:#999999;">.</span><span style="color:#998418;">Sleep</span><span style="color:#999999;">(</span><span style="color:#393A34;">after</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">return</span><span style="color:#393A34;"> c</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">start</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> time</span><span style="color:#999999;">.</span><span style="color:#998418;">Now</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#393A34;">any</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;">c</span><span style="color:#999999;">.</span><span style="color:#998418;">Or</span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#998418;">sig</span><span style="color:#999999;">(</span><span style="color:#2F798A;">1</span><span style="color:#AB5959;">*</span><span style="color:#393A34;">time</span><span style="color:#999999;">.</span><span style="color:#393A34;">Second</span><span style="color:#999999;">),</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#998418;">sig</span><span style="color:#999999;">(</span><span style="color:#2F798A;">2</span><span style="color:#AB5959;">*</span><span style="color:#393A34;">time</span><span style="color:#999999;">.</span><span style="color:#393A34;">Second</span><span style="color:#999999;">),</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#998418;">sig</span><span style="color:#999999;">(</span><span style="color:#2F798A;">3</span><span style="color:#AB5959;">*</span><span style="color:#393A34;">time</span><span style="color:#999999;">.</span><span style="color:#393A34;">Second</span><span style="color:#999999;">),</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">done after </span><span style="color:#A65E2B;">%v</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">,</span><span style="color:#393A34;"> time</span><span style="color:#999999;">.</span><span style="color:#998418;">Since</span><span style="color:#999999;">(</span><span style="color:#393A34;">start</span><span style="color:#999999;">))</span><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">//1.003s</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="OrDone" tabindex="-1"><span id="OrDone">OrDone</span> <a class="header-anchor" href="#OrDone" aria-label="Permalink to &quot;&lt;span id=&quot;OrDone&quot;&gt;OrDone&lt;/span&gt;&quot;">​</a></h3><p>将一个channel读入另一个channel，直到取消上下文。</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">OrDone</span><span style="color:#F6F6F4;">(ctx context.Context, channel </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">OrDone</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx context</span><span style="color:#999999;">.</span><span style="color:#393A34;">Context</span><span style="color:#999999;">,</span><span style="color:#393A34;"> channel </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/lm_GoS6aDjo" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> ctx, cancel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> context.</span><span style="color:#97E1F1;">WithCancel</span><span style="color:#F6F6F4;">(context.</span><span style="color:#97E1F1;">Background</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">cancel</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> intStream </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Take</span><span style="color:#F6F6F4;">(ctx, c.</span><span style="color:#97E1F1;">Repeat</span><span style="color:#F6F6F4;">(ctx, </span><span style="color:#BF9EEE;">1</span><span style="color:#F6F6F4;">), </span><span style="color:#BF9EEE;">3</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> v </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">range</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">OrDone</span><span style="color:#F6F6F4;">(ctx, intStream) {</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(v)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">cancel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> context</span><span style="color:#999999;">.</span><span style="color:#998418;">WithCancel</span><span style="color:#999999;">(</span><span style="color:#393A34;">context</span><span style="color:#999999;">.</span><span style="color:#998418;">Background</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">cancel</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">int</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">intStream</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Take</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Repeat</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">1</span><span style="color:#999999;">),</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">3</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">v</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">range</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">OrDone</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> intStream</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">v</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="Take" tabindex="-1"><span id="Take">Take</span> <a class="header-anchor" href="#Take" aria-label="Permalink to &quot;&lt;span id=&quot;Take&quot;&gt;Take&lt;/span&gt;&quot;">​</a></h3><p>返回一个channel，其值从另一个channel获取，直到取消上下文。</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">Take</span><span style="color:#F6F6F4;">(ctx context.Context, valueStream </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T, number </span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">) </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Take</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx context</span><span style="color:#999999;">.</span><span style="color:#393A34;">Context</span><span style="color:#999999;">,</span><span style="color:#393A34;"> valueStream </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span><span style="color:#999999;">,</span><span style="color:#393A34;"> number </span><span style="color:#AB5959;">int</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/9Utt-1pDr2J" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> ctx, cancel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> context.</span><span style="color:#97E1F1;">WithCancel</span><span style="color:#F6F6F4;">(context.</span><span style="color:#97E1F1;">Background</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">cancel</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> numbers </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">make</span><span style="color:#F6F6F4;">(</span><span style="color:#F286C4;">chan</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">, </span><span style="color:#BF9EEE;">5</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> numbers </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">1</span></span>
<span class="line"><span style="color:#F6F6F4;"> numbers </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">2</span></span>
<span class="line"><span style="color:#F6F6F4;"> numbers </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">3</span></span>
<span class="line"><span style="color:#F6F6F4;"> numbers </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">4</span></span>
<span class="line"><span style="color:#F6F6F4;"> numbers </span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;"> </span><span style="color:#BF9EEE;">5</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">close</span><span style="color:#F6F6F4;">(numbers)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> intStream </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Take</span><span style="color:#F6F6F4;">(ctx, numbers, </span><span style="color:#BF9EEE;">3</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> v </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">range</span><span style="color:#F6F6F4;"> intStream {</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(v)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 2</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 3</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">cancel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> context</span><span style="color:#999999;">.</span><span style="color:#998418;">WithCancel</span><span style="color:#999999;">(</span><span style="color:#393A34;">context</span><span style="color:#999999;">.</span><span style="color:#998418;">Background</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">cancel</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">numbers</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#998418;">make</span><span style="color:#999999;">(</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">int</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">5</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> numbers </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">1</span></span>
<span class="line"><span style="color:#393A34;"> numbers </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">2</span></span>
<span class="line"><span style="color:#393A34;"> numbers </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">3</span></span>
<span class="line"><span style="color:#393A34;"> numbers </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">4</span></span>
<span class="line"><span style="color:#393A34;"> numbers </span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">5</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">close</span><span style="color:#999999;">(</span><span style="color:#393A34;">numbers</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">int</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">intStream</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Take</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> numbers</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">3</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">v</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">range</span><span style="color:#393A34;"> intStream </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">v</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 2</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 3</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="Tee" tabindex="-1"><span id="Tee">Tee</span> <a class="header-anchor" href="#Tee" aria-label="Permalink to &quot;&lt;span id=&quot;Tee&quot;&gt;Tee&lt;/span&gt;&quot;">​</a></h3><p>将一个channel分成两个channel，直到取消上下文。</p><p><b>函数签名:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (c </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">Channel[T]) </span><span style="color:#62E884;">Tee</span><span style="color:#F6F6F4;">(ctx context.Context, in </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T) (</span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T, </span><span style="color:#F286C4;">&lt;-chan</span><span style="color:#F6F6F4;"> T)</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">c </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">Channel</span><span style="color:#999999;">[</span><span style="color:#393A34;">T</span><span style="color:#999999;">])</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Tee</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx context</span><span style="color:#999999;">.</span><span style="color:#393A34;">Context</span><span style="color:#999999;">,</span><span style="color:#393A34;"> in </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">&lt;-</span><span style="color:#1E754F;">chan</span><span style="color:#393A34;"> T</span><span style="color:#999999;">)</span></span></code></pre></div><p><b>示例:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/3TQPKnCirrP" target="_blank" rel="noreferrer">运行</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">context</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> ctx, cancel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> context.</span><span style="color:#97E1F1;">WithCancel</span><span style="color:#F6F6F4;">(context.</span><span style="color:#97E1F1;">Background</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">cancel</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> c </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> concurrency.NewChannel[</span><span style="color:#97E1F1;font-style:italic;">int</span><span style="color:#F6F6F4;">]()</span></span>
<span class="line"><span style="color:#F6F6F4;"> intStream </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Take</span><span style="color:#F6F6F4;">(ctx, c.</span><span style="color:#97E1F1;">Repeat</span><span style="color:#F6F6F4;">(ctx, </span><span style="color:#BF9EEE;">1</span><span style="color:#F6F6F4;">), </span><span style="color:#BF9EEE;">2</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> ch1, ch2 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> c.</span><span style="color:#97E1F1;">Tee</span><span style="color:#F6F6F4;">(ctx, intStream)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">for</span><span style="color:#F6F6F4;"> v </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">range</span><span style="color:#F6F6F4;"> ch1 {</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(v)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(</span><span style="color:#F286C4;">&lt;-</span><span style="color:#F6F6F4;">ch2)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 1</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">context</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/concurrency</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">cancel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> context</span><span style="color:#999999;">.</span><span style="color:#998418;">WithCancel</span><span style="color:#999999;">(</span><span style="color:#393A34;">context</span><span style="color:#999999;">.</span><span style="color:#998418;">Background</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#998418;">cancel</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">c</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> concurrency</span><span style="color:#999999;">.</span><span style="color:#393A34;">NewChannel</span><span style="color:#999999;">[</span><span style="color:#AB5959;">int</span><span style="color:#999999;">]()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">intStream</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Take</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Repeat</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">1</span><span style="color:#999999;">),</span><span style="color:#393A34;"> </span><span style="color:#2F798A;">2</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">ch1</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">ch2</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> c</span><span style="color:#999999;">.</span><span style="color:#998418;">Tee</span><span style="color:#999999;">(</span><span style="color:#393A34;">ctx</span><span style="color:#999999;">,</span><span style="color:#393A34;"> intStream</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">for</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">v</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">range</span><span style="color:#393A34;"> ch1 </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">v</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#AB5959;">&lt;-</span><span style="color:#393A34;">ch2</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 1</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div>`,62),g=[c,t,r,y,F,i,A,E,u,d,h];function C(B,m,f,v,k,b){return p(),o("div",null,g)}const x=l(e,[["render",C]]);export{D as __pageData,x as default};
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