微信公众平台二维码，扫码分组，可以制作多个渠道的二维码，统计来自不同场景扫码关注的微信用户(WeChat public platform two-dimensional code, scan code grouping, you can make multiple channels of two-dimensional code, statistics from different scenarios sweep code attention WeChat users)

该控件库可以使开发微信小程序更加的方便，使得界面更加的美观(use this file, you can make your Wechat code to be more beautiful.)