From e435fa271badade4c9c831923d16828868f44a37 Mon Sep 17 00:00:00 2001
From: dudaodong <dudaodong@gmail.com>
Date: Sat, 10 Dec 2022 21:03:16 +0800
Subject: [PATCH] doc: update doc for Comma

---
 docs/formatter.md       | 5 ++---
 docs/formatter_zh-CN.md | 4 ++--
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/docs/formatter.md b/docs/formatter.md
index 37dc95b..147a9a5 100644
--- a/docs/formatter.md
+++ b/docs/formatter.md
@@ -28,13 +28,12 @@ import (
 
 
 ### <span id="Comma">Comma</span>
-<p>Add comma to number by every 3 numbers from right. ahead by symbol char.
-Param should be number or numberic string.</p>
+<p>Add comma to a number value by every 3 numbers from right to left. ahead by symbol char. if value is a invalid number string like "aa", return empty string.</p>
 
 <b>Signature:</b>
 
 ```go
-func Comma(v any, symbol string) string
+func Comma[T constraints.Float | constraints.Integer | string](value T, symbol string) string
 ```
 <b>Example:</b>
 
diff --git a/docs/formatter_zh-CN.md b/docs/formatter_zh-CN.md
index 9e80ff3..1c47b59 100644
--- a/docs/formatter_zh-CN.md
+++ b/docs/formatter_zh-CN.md
@@ -28,12 +28,12 @@ import (
 
 
 ### <span id="Comma">Comma</span>
-<p>用逗号每隔3位分割数字/字符串，签名添加符号。参数必须是数字或者可以转为数字的字符串</p>
+<p>用逗号每隔3位分割数字/字符串，支持前缀添加符号。参数value必须是数字或者可以转为数字的字符串, 否则返回空字符串</p>
 
 <b>函数签名:</b>
 
 ```go
-func Comma(v any, symbol string) string
+func Comma[T constraints.Float | constraints.Integer | string](value T, symbol string) string
 ```
 <b>例子:</b>