/// <summary>
        /// 获取加群验证码
        /// </summary>
        /// <returns></returns>
        private RetJsonData Action_GetClusterVerify(UInt32 ClusterNumber)
        {
            // 获取验证码图片
            Image verifyImage = ApiPlugin.GetClusterVerify(ClusterNumber);

            return(new RetJsonData()
            {
                Data = verifyImage
            });
        }