c#：如何在数字格式字符串中强制尾随零？
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c#: how to force trailing zero in numeric format string?
提问by P a u l
I need to display float as
我需要将浮动显示为
1.00
1.50
1.55
1.60
The following is what I see using f2 format.
以下是我使用 f2 格式看到的内容。
1.
1.5
1.55
1.6
Is there a way to force the trailing 0 to appear?
有没有办强制尾随 0 出现？
(I'm using a DevExpress SpinEdit control and trying to set the display and edit format.)
（我正在使用 DevExpress SpinEdit 控件并尝试设置显示和编辑格式。）
采纳答案by LukeH
yourNumber.ToString("N2");
回答by Vadim
You can use syntax like this:
您可以使用这样的语：
String.Format("{0:0.00}", n)
回答by z3r0 c001
回答by cookre
On those rare occasions I need to formatting, I go here:
在我需要格式化的极少数情况下，我去这里：
http://blog.stevex.net/index.php/string-formatting-in-csharp/
http://blog.stevex.net/index.php/string-formatting-in-csharp/
回答by Josh Kodroff
spinEdit.Properties.DisplayFormat.FormatType = FormatType.Numeric;
spinEdit.Properties.DisplayFormat.FormatString = "C2";
In the future, though, I would recommended searching Dev Express' knowledge baseor emailing support ([email protected]). They'll be able to answer your question in about a day.
不过，将来我建议搜索Dev Express 的知识库或发送电子邮件支持 ([email protected])。他们将能够在大约一天内回答您的问题。
回答by derekantrican
You can also do this with string interpolation (note that this is C# 6 and above):
您也可以使用字符串插值来执行此操作（请注意，这是 C# 6 及更高版本）：
double num = 98765.4;
Console.WriteLine($"{num:0.00}"); //Replace "0.00" with "N2" if you want thousands separators
