微信api 怎么获取scope（snsapi_login）权限,在PC端接入扫码登录
在微信开发者文档都没找到，看过相关文章也没说如何获取权限，本人公众号是服务号，已经交了300认证成功。
求知道的朋友告解
------解决思路----------------------
微信公众号（公众平台） 和 微信开放平台 是两码事。公众号（公众平台）获取的scope只包括两种：snsapi_base 和snsapi_userinfo，前者是静默获取，用户无感知；后者是需要用户确认同意的。
但是微信开放平台(https://open.weixin.qq.com/) 就可以获取snsapi_login这种scope。坑爹的是，公众平台的认证和开放平台的认证是独立的，你如果想获取snsapi_login，还需要重新注册开放平台，交300块钱认证。
如果你只是想实现微信扫二维码登录的话，其实snsapi_base 也足够了，因为它可以获取到用户的openid，你可以之后用来和自己数据库中作比对。
如果还不明白，可以参考这个，我已经做成了API，更简单易用：
https://wenfan.cn/archives/1866.wen
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