单独剥离出来一个为windows的,增加RandNumLen为取指定长度随机数.

docs/api/packages/random.md

@@ -40,6 +40,7 @@ import (
 -   [RandStringSlice](#RandStringSlice)
 -   [RandBool](#RandBool)
 -   [RandBoolSlice](#RandBoolSlice)
+-   [RandNumLen](#RandNumLen)
 
 
 <div STYLE="page-break-after: always;"></div>
@@ -522,4 +523,29 @@ func main() {
     result := random.RandBoolSlice(2)
     fmt.Println(result) // [true false] (random)
 }
+```
+### <span id="RandNumLen">RandNumLen</span>
+
+<p>生成指定长度的随机数</p>
+
+<b>函数签名:</b>
+
+```go
+func RandNumLen(len int) int
+```
+
+<b>实例:<span style="float:right;display:inline-block;">[运行](https://go.dev/play/p/o-VSjPjnILI)</span></b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/random"
+)
+
+func main() {
+    i := random.RandNumLen(2)
+    fmt.Println(i)
+}
 ```

fileutil/file.go

@@ -1,3 +1,6 @@
+//go:build windows
+// +build windows
+
 // Copyright 2021 dudaodong@gmail.com. All rights reserved.
 // Use of this source code is governed by MIT license.
 
@@ -15,7 +18,6 @@ import (
 	"errors"
 	"fmt"
 	"github.com/duke-git/lancet/v2/validator"
-	"golang.org/x/sys/windows"
 	"io"
 	"io/fs"
 	"net/http"
@@ -25,7 +27,6 @@ import (
 	"sort"
 	"strings"
 	"sync"
-	"unsafe"
 )
 
 // FileReader is a reader supporting offset seeking and reading one
@@ -948,32 +949,3 @@ func ParallelChunkRead(filePath string, linesCh chan<- []string, chunkSizeMB, ma
 
 	return nil
 }
-
-// GetExeDllVersion 获取exe或dll文件的版本信息
-func GetExeDllVersion(filePath string) (string, error) {
-	// 获取版本信息大小
-	size, err := windows.GetFileVersionInfoSize(filePath, nil)
-	if err != nil {
-		return "", fmt.Errorf("无法获取版本信息大小: %w", err)
-	}
-	// 读取版本信息
-	data := make([]byte, size)
-	err = windows.GetFileVersionInfo(filePath, 0, size, unsafe.Pointer(&data[0]))
-	if err != nil {
-		return "", fmt.Errorf("无法获取版本信息: %w", err)
-	}
-	// 查询版本信息
-	var fixedInfo *windows.VS_FIXEDFILEINFO
-	var fixedInfoLen uint32
-	err = windows.VerQueryValue(unsafe.Pointer(&data[0]), `\`, unsafe.Pointer(&fixedInfo), &fixedInfoLen)
-	if err != nil {
-		return "", fmt.Errorf("无法查询版本信息: %w", err)
-	}
-
-	// 提取版本号
-	major := fixedInfo.FileVersionMS >> 16
-	minor := fixedInfo.FileVersionMS & 0xFFFF
-	build := fixedInfo.FileVersionLS >> 16
-	revision := fixedInfo.FileVersionLS & 0xFFFF
-	return fmt.Sprintf("%d.%d.%d.%d", major, minor, build, revision), nil
-}

fileutil/file_test.go

@@ -619,10 +619,3 @@ func TestChunkRead(t *testing.T) {
 	assert.Equal("Jim,21,male", lines[1])
 
 }
-func TestGetExeDllVersion(t *testing.T) {
-	v, err := GetExeDllVersion(`C:\Program Files\Tencent\WeChat\WeChat.exe`)
-	if err != nil {
-		t.Error(err)
-	}
-	t.Log(v)
-}

fileutil/file_windows.go

@@ -0,0 +1,81 @@
+//go:build windows
+
+package fileutil
+
+import (
+	"fmt"
+	"syscall"
+	"unsafe"
+)
+
+// tagVS_FIXEDFILEINFO 参考结构体https://learn.microsoft.com/zh-cn/windows/win32/api/verrsrc/ns-verrsrc-vs_fixedfileinfo
+type tagVS_FIXEDFILEINFO struct {
+	Signature        uint32
+	StructVersion    uint32
+	FileVersionMS    uint32
+	FileVersionLS    uint32
+	ProductVersionMS uint32
+	ProductVersionLS uint32
+	FileFlagsMask    uint32
+	FileFlags        uint32
+	FileOS           uint32
+	FileType         uint32
+	FileSubtype      uint32
+	FileDateMS       uint32
+	FileDateLS       uint32
+}
+
+// GetExeDllVersion 获取exe或dll文件的版本信息
+func GetExeDllVersion(filePath string) (string, error) {
+	// 加载系统dll
+	versionDLL := syscall.NewLazyDLL("version.dll")
+	getFileVersionInfoSize := versionDLL.NewProc("GetFileVersionInfoSizeW")
+	getFileVersionInfo := versionDLL.NewProc("GetFileVersionInfoW")
+	verQueryValue := versionDLL.NewProc("VerQueryValueW")
+
+	// 转换路径为UTF-16
+	filePathPtr, err := syscall.UTF16PtrFromString(filePath)
+	if err != nil {
+		return "", fmt.Errorf("unable to convert file path to UTF-16: %w", err)
+	}
+
+	// 获取version信息大小
+	size, _, err := getFileVersionInfoSize.Call(
+		uintptr(unsafe.Pointer(filePathPtr)),
+		0,
+	)
+	if size == 0 {
+		return "", fmt.Errorf("unable to obtain version information size: %v", err)
+	}
+
+	// 加载version信息
+	data := make([]byte, size)
+	ret, _, err := getFileVersionInfo.Call(uintptr(unsafe.Pointer(filePathPtr)), 0, size, uintptr(unsafe.Pointer(&data[0])))
+	if ret == 0 {
+		return "", fmt.Errorf("unable to obtain version information: %v", err)
+	}
+
+	// 查询version信息
+	var fixedInfo *tagVS_FIXEDFILEINFO
+	var fixedInfoLen uint32
+	u16, err := syscall.UTF16PtrFromString(`\`)
+	if err != nil {
+		return "", fmt.Errorf("unable to convert file path to UTF-16: %w", err)
+	}
+	ret, _, err = verQueryValue.Call(
+		uintptr(unsafe.Pointer(&data[0])),
+		uintptr(unsafe.Pointer(u16)),
+		uintptr(unsafe.Pointer(&fixedInfo)),
+		uintptr(unsafe.Pointer(&fixedInfoLen)),
+	)
+	if ret == 0 {
+		return "", fmt.Errorf("unable to query version information: %v", err)
+	}
+
+	// 转换结构体
+	major := fixedInfo.FileVersionMS >> 16
+	minor := fixedInfo.FileVersionMS & 0xFFFF
+	build := fixedInfo.FileVersionLS >> 16
+	revision := fixedInfo.FileVersionLS & 0xFFFF
+	return fmt.Sprintf("%d.%d.%d.%d", major, minor, build, revision), nil
+}

fileutil/file_windows_test.go

@@ -0,0 +1,13 @@
+//go:build windows
+
+package fileutil
+
+import "testing"
+
+func TestGetExeDllVersion(t *testing.T) {
+	v, err := GetExeDllVersion(`C:\Windows\System32\cmd.exe`)
+	if err != nil {
+		t.Error(err)
+	}
+	t.Log(v)
+}

random/random.go

@@ -327,3 +327,11 @@ func UUIdV4() (string, error) {
 
 	return fmt.Sprintf("%x-%x-%x-%x-%x", uuid[0:4], uuid[4:6], uuid[6:8], uuid[8:10], uuid[10:]), nil
 }
+
+// RandNumLen 生成一个长度为len的随机数
+func RandNumLen(len int) int {
+	m := int(math.Pow10(len) - 1)
+	i := int(math.Pow10(len - 1))
+	ret := rand.Intn(m-i+1) + i
+	return ret
+}