格式.NET DateTime“Day”没有前导零 [英] Format .NET DateTime "Day" with no leading zero

问题描述

对于以下代码，我希望结果等于2，因为MSDN表示'd'表示从1到31的数字的一个月中的日期。单位数一天的格式没有前导零。

For the following code, I would expect result to equal 2, because the MSDN states that 'd' "Represents the day of the month as a number from 1 through 31. A single-digit day is formatted without a leading zero.".

DateTime myDate = new DateTime( 2009, 6, 4 );
string result = myDate.ToString( "d" );

但是，结果实际上等于'6/4/2009' - 这是短日期格式（也是'd'）。我可以使用'dd'，但是它增加了一个前导零，我不想要。

However, result is actually equal to '6/4/2009' - which is the short-date format (which is also 'd'). I could use 'dd', but that adds a leading zero, which I don't want.

推荐答案

是一个自定义格式说明符（与标准格式说明符相反），它必须是两个字符长。这可以通过添加一个空格（将显示在输出中），或者在单个字母之前添加百分号，如下所示：

To indicate that this is a custom format specifier (in contrast to a standard format specifier), it must be two characters long. This can be accomplished by adding a space (which will show up in the output), or by including a percent sign before the single letter, like this:

string result = myDate.ToString("%d");

MSDN

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