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+环境要求: PHP >= 5.3.0
+
+1. 使用composer:
+
+  ```shell
+  composer require overtrue/wechat
+  ```
+
+2. 手动安装
+
+  下载[最新版zip包](https://github.com/overtrue/wechat/archive/master.zip) 或者下载指定版本:https://github.com/overtrue/wechat/releases
+
+  然后引入根目录的autoload.php即可：
+  
+  ```php
+  <?php
+  
+  require "wechat/autoload.php"; // 路径请修改为你具体的实际路径
+  
+  use Overtrue\Wechat\Wechat;
+  ...
+  ```
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