https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx4ea2f0dc027fa6a7&redirect_uri=https%3A%2F%2Ftesting.nanoa.cn%2Fcomponent%2Fwechat%2Fofficial.oauth.callback.php&response_type=code&scope=snsapi_base&state=a7209ea88ed7273a98cd6de2c04b9cc9&connect_redirect=1#wechat_redirect