https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Receiving_event_pushes.htmlhttps://developers.weixin.qq.com/doc/offiaccount/Account_Management/Generating_a_Parametric_QR_Code.htmlhttps://developers.weixin.qq.com/doc/offiaccount/Account_Management/Generating_a_Parametric_QR_Code.htmlhttps://developers.weixin.qq.com/doc/offiaccount/Basic_Information/Access_Overview.htmlhttps://developers.weixin.qq.com/doc/offiaccount/Basic_Information/Access_Overview.htmlhttps://developers.weixin.qq.com/doc/oplatform/Website_App/WeChat_Login/Wechat_Login.htmlhttps://developers.weixin.qq.com/doc/oplatform/Website_App/WeChat_Login/Wechat_Login.html
为什么关注和取关的时间推送用的这个地址，而且是post请求，。。。。如上
post数据里面有相关参数
xml或者json数据在body里啊
只给了我一个openid，我怎么判断这是关注还是取关？