[英]How do I convert a DateTime object to YYMMDD format?
Um, probably a really simple question, but I just noticed that I have no idea on how to convert DateTime.Now
to the format YYMMDD, so for example today (5. November 2009) would be "091105".嗯,可能是一个非常简单的问题,但我只是注意到我不知道如何将DateTime.Now
转换为 YYMMDD 格式,例如今天(2009 年 11 月 5 日)将是“091105”。
I know there are overloads to DateTime.Now.ToString()
where you can pass in a format string, but I have not found the right format eg for short year format (09 instead of 2009).我知道DateTime.Now.ToString()
有重载,您可以在其中传递格式字符串,但我还没有找到正确的格式,例如短年份格式(09 而不是 2009)。
DateTime.Now.ToString("yyMMdd")
You may also find the following two posts on MSDN useful as they contain a lot of info about DateTime formatting:您可能还会发现 MSDN 上的以下两篇文章很有用,因为它们包含大量有关 DateTime 格式的信息:
Standard Date and Time Format Strings标准日期和时间格式字符串
Custom Date and Time Format Strings自定义日期和时间格式字符串
Another alternative that you can do this is by:您可以执行此操作的另一种选择是:
var formattedDate = string.Format("{0:yyMMdd}", DateTime.Now);
Hope this helps!希望这可以帮助!
The reference for the format string is at MSDN: Custom DateTime Format Specifiers .格式字符串的参考位于MSDN:自定义日期时间格式说明符。
What you are looking for specifically is:您要特别寻找的是:
yy Represents the year as a two-digit number. yy将年份表示为两位数。 If the year has more than two digits, only the two low-order digits appear in the result.如果年份超过两位数,则结果中只会出现两位低位数字。 If the year has fewer than two digits, the number is padded with leading zeroes to achieve two digits.如果年份少于两位数,则用前导零填充该数字以达到两位数。
MM Represents the month as a number from 01 through 12. A single-digit month is formatted with a leading zero. MM将月份表示为从 01 到 12 的数字。一位数月份的格式为前导零。
dd Represents the day of the month as a number from 01 through 31. A single-digit day is formatted with a leading zero. dd将月中的日期表示为 01 到 31 之间的数字。一位数的日期格式为前导零。
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