C# Format string type amount

C# Format string type amount

/// <summary>
     /// 根据精度将金额转换为自定义类型的string
     /// </summary>
     /// <param name="precision">需要的精度</param>
     /// <param name="money">需要转换的金额</param>
     /// <returns>转换后的金额</returns>
     public  string FormateString(int precision, double money)
     {
         //比如，FormateString(2,2333)==>结果：2,333.00
         string format = "###,###,###,##0.";
         for (int i = 0; i < precision; i++)
         {
             format = format + "0";
         }
         return money.ToString(format);
     }
     /// <summary>
     /// 转换任意类型的对象为Double
     /// </summary>
     /// <param name="val">需要转换的对象</param>
     /// <returns>返回Double类型的变量</returns>
     public  double ConvertDouble(object val)
     {
         if (((val == null) || (val.ToString() == "")) || (val is DBNull))
         {
             return 0.0;
         }
         if (val is string)
         {
             val = val.ToString().Replace(",", "");
         }
         try
         {
             return Convert.ToDouble(val);
         }
         catch
         {
             return 0.0;
         }
     }

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