在uniapp里可以用wx.login
https://blog.csdn.net/wltsysterm/article/details/115534320
https://uniapp.dcloud.net.cn/api/plugins/login
https://blog.csdn.net/qq_36232611/article/details/103188776
https://zhuanlan.zhihu.com/p/93030788
https://www.cnblogs.com/emmawang1988/p/13347311.html