public async Task <WxUser> GetSnsApiUserInfo(string code)
{
var token = await AccessTokenFactory.GetTokenAsync(code);
if (token == null)
{
return(null);
}
string url = $"{WxConstants.SNSAPI_USERINFO_URL}?access_token={token.AccessToken}&openid={token.OpenId}&lang=zh_CN";
return(await WxClient.GetAsync <WxUser>(url));
}