用户登录

URL：https://APPID前八位.http://api.lncldglobal.com/1.1//1.1/login POST

传参：@{@"username":self.phone.text,@"password":self.yazhengma.text}

登录成功后的数据格式：

{

createdAt = "2020-08-02T09:25:40.986Z";

emailVerified = 0;

mobilePhoneVerified = 0;

objectId = *****;

sessionToken = *****;

updatedAt = "2020-08-02T09:25:40.986Z";

username = *****;

}