1:https://blog.****.net/han_xiaoxue/article/details/78202551 详细步骤
2 https://blog.****.net/weixin_41981080/article/details/81869592 ,https://blog.****.net/yudiandemingzi/article/details/89706051 获取扫码页面的两种方式
3 https://www.jianshu.com/p/a77b287be3b7 获取token跳转到首页