C# String.Format 一个整数以使用没有小数位的千位分隔符或小整数前导 0

String.Format an integer to use a thousands separator without decimal places or leading 0 for small integers

提问by Justin

Silly question, I want to format an integer so that it appears with the 1000's separator (,), but also without decimal places and without a leading 0.

愚蠢的问题，我想格式化一个整数，使其以 1000 的分隔符 (,) 出现，但也没有小数位和前导 0。

My attempts so far have been:

到目前为止，我的尝试是：

String.Format("{0} {1}", 5, 5000);            // 5 5000
String.Format("{0:n} {1:n}", 5, 5000);        // 5.00 5,000.00
String.Format("{0:0,0} {1:0,0}", 5, 5000);    // 05 5,000

The output I'm after is:

我追求的输出是：

5 5,000

Is there something obvious that I'm missing?

有什么明显的东西我失踪了吗？

采纳答案by Richard Friend

This worked for me.

这对我有用。

String.Format("{0:#,0} {1:#,0}", 5, 5000); // 5 5,000

回答by Ruben Bartelink

String.Format("{0:#,0} {1:#,0}", 5, 5000); // "5 5,000"

• 0in a format string means put the digit that belongs here, or else a [leading/trailing] zero [to make things align, etc.]. EDIT: You'll definitely want one as the last digit in the pattern, or a zero value will be rendered as an empty String
• #means don't put anything into the output unless there's a significant digit here.

• 0在格式字符串中意味着把属于这里的数字，或者[前导/尾随]零[使事情对齐等]。编辑：您肯定需要一个作为模式中的最后一位数字，否则零值将呈现为空字符串
• #意味着不要在输出中放入任何东西，除非这里有一个有效数字。

EDIT (thanks @eulerfx):

编辑（感谢@eulerfx）：

• the last portion needs to be a 0rather than a #(as I initially had it) as a value of zero would otherwise be rendered as a zero-length string.

• 最后一部分需要是 a0而不是 a #（正如我最初拥有的那样），否则零值将呈现为零长度字符串。

回答by Anax

Try

尝试

String.Format("{0:#,#}", 4000);

回答by ZafarYousafi

Try this:-

尝试这个：-

String.Format("{0:n0}",5000) // 5,000
String.Format("{0:n0}",5) // 5
String.Format("{0:n0}",0) // 0