/// <summary>
 /// 通过API获取APP的可见范围, 判断该User是否在其中
 /// </summary>
 /// <param name="appId"></param>
 /// <returns></returns>
 private bool ValidateUserInApp(int?appId)
 {
     if (null != appId)
     {
         SysAddressBookMember user = GetCropUser();
         if (null != user && null != user.AccountManageId)
         {
             return(WeChatCommonService.IsValidateUser((int)appId, user, (int)user.AccountManageId));
         }
     }
     return(false);
 }