问题解决：System.FormatException:“Input string was not in a correct format.”

最新推荐文章于 2024-11-12 11:17:38 发布

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`问题`：

    double days = 107653 / 86400;
    Console.WriteLine(days);
    double hours = (107653 % 86400) / 3600;
    Console.WriteLine(hours);
    double minutes = ((107653 % 86400) % 3600) / 60;
    Console.WriteLine(minutes);
    double seconds = (((107653 % 86400) % 3600) % 60) / 60;
    Console.WriteLine(seconds);
    Console.WriteLine("107653是{}天{}小时{}分钟{}秒", days,hours,minutes,seconds);
    Console.ReadKey();

执行这个程序出现错误，

System.FormatException
  HResult=0x80131537
  Message=Input string was not in a correct format.
  Source=System.Private.CoreLib
  StackTrace:
   at System.Text.StringBuilder.FormatError()
   at System.Text.StringBuilder.AppendFormatHelper(IFormatProvider provider, String format, ParamsArray args)
   at System.IO.StreamWriter.WriteFormatHelper(String format, ParamsArray args, Boolean appendNewLine)
   at System.IO.StreamWriter.WriteLine(String format, Object[] arg)
   at System.IO.TextWriter.SyncTextWriter.WriteLine(String format, Object[] arg)
   at System.Console.WriteLine(String format, Object[] arg)
   at Learing.Program.Main(String[] args) in E:\C#Date\Learn\Learing\Program.cs:line 38

`原因`：

在大括号{}里没有添加序号导致的

`解决`：

应该在输出的{}里分别加入序号{0}{1}…。

`更改后：`

    double days = 107653 / 86400;
    Console.WriteLine(days);
    double hours = (107653 % 86400) / 3600;
    Console.WriteLine(hours);
    double minutes = ((107653 % 86400) % 3600) / 60;
    Console.WriteLine(minutes);
    double seconds = (((107653 % 86400) % 3600) % 60) / 60;
    Console.WriteLine(seconds);
    Console.WriteLine("107653是{1}天{2}小时{3}分钟{4}秒", days,hours,minutes,seconds);
    Console.ReadKey();