/// <summary>

        /// 验证数字

        /// </summary>

        /// <param name="number">数字内容</param>

        /// <returns>true 验证成功 false 验证失败</returns>

        public bool CheckNumber(string number)

        {

            if (string.IsNullOrEmpty(number))

            {

                return false;

            }

            Regex regex = new Regex(@"^(-)?\d+(\.\d+)?$");

            if (regex.IsMatch(number))

            {

                return true;

            }

            else

            {

                return false;

            }

        }