微信机器人通过模拟网页版请求登陆后一段时间后，心跳返回window.synccheck={retcode:"0",selector:"7"}，可以发送信息，就是获取不到新的信息一直返回{"BaseRequest":{"DeviceID":"e499086495553179","Uin":"142747508","Skey":"@crypt_14fe699e_031a02f91ee66f3ec30eeb7a063386d6","Sid":"0CJRgGufJsvpJrVk"},"SyncKey":{"Count":0,"List":[]}}