/// <summary>
/// 获取用户信息。
/// </summary>
/// <param name="authService">OAuth服务。</param>
/// <param name="code">公众平台Code参数。</param>
/// <returns>用户信息。</returns>
public static OAuthUserInfo GetUserInfo(this IOAuthService authService, string code)
{
code.NotEmptyOrWhiteSpace("code");
var result = authService.NotNull("authService").GetAccessToken(code);
if (result == null)
{
throw new ArgumentException("根据 Code 获取访问票据失败。", "code");
}
return(authService.GetUserInfo(result, result.OpenId));
}