/// 
        /// 保证数据长度相同        /// 
        ///         ///         /// 后填充/前填充        /// 
             public string GetSameLenString(object obj, int len, bool afterFill = true)        {            string name = obj.ToString();            //int count = len - name.Length;//不能用这个 汉字和英文占用的长度不同            int count = len - System.Text.Encoding.Default.GetBytes(name).Length;            if (afterFill)            {                for (int i = 0; i < count; i++)                {                    name += " ";                }                return name;            }            else            {                string value = "";                for (int i = 0; i < count; i++)                {                    value += " ";                }                value += name;                return value;            }        }