valid input data for node and browser,验证输入数据适用于Node和浏览器
Detect Mobile Browsers,ismobile,express middleware
一个对node-mysql的简单封装，使之常用功能为快捷,方便模块化开发程序
This is an Express middleware, is mainly used to check whether the user login
sql-like mongo wrapper
Creating thumbnails, verification code, add a watermark.用于生成缩略图，添加水印，生成验证码
