通知模块

[devhaozi]

在提问之前 (Before Asking)

• [x] 我已经搜索了全部 Issues 和 Commits (I have searched all Issues and Commits)
• [x] 它们当中没有我将要提交的新功能 (None of them have new feature that I'm going to submit)

描述功能 (Describe Feature)

暂时只考虑支持SMTP邮件

工作流程 (WorkFlow)

1. 新建文件 ....
2. 添加函数 ....
3. ...

还有别的吗 (Anything Else)

No response