Cloud code project for ChatDemo. Cloud Code Guide: https://cn.avoscloud.com/docs/cloud_code_guide.html

有双向添加好友、双向删除好友的示例，核心代码：

https://github.com/avoscloud/AdventureCloud/blob/master/cloud/main.js

https://github.com/avoscloud/AdventureCloud/blob/master/cloud/muser.js