每个月的每一天 [英] foreach day in month
问题描述
可能重复:
如何循环日期范围?
有没有办法在特定月份的每一天做一个foreach循环?
考虑类似于
foreach(DateTime.DaysInMonth(2012,1)中的日期)
{
}
解决方案您可以很容易地编写一个帮助方法: pre>
public static IEnumerable< DateTime> AllDatesInMonth(int year,int month)
{
int days = DateTime.DaysInMonth(year,month);
for(int day = 1; day <= days; day ++)
{
yield new DateTime(year,month,day);
$ / code>
然后调用它:
foreach(在AllDatesInMonth(2012,1)中的DateTime日期)
这可能是一次只做一次的东西,但它比用于要好得多。循环或类似的东西,如果你这样做了很多。它使你的代码只是你想要达到什么目的,而不是你如何做的机制。
Possible Duplicate:
How do I loop through a date range?
Is there a way to make a foreach loop for each day in a specific month?
thinking of something like
foreach (DateTime date in DateTime.DaysInMonth(2012, 1))
{
}
You can write a helper method pretty easily:
public static IEnumerable<DateTime> AllDatesInMonth(int year, int month)
{
int days = DateTime.DaysInMonth(year, month);
for (int day = 1; day <= days; day++)
{
yield return new DateTime(year, month, day);
}
}
Then call it with:
foreach (DateTime date in AllDatesInMonth(2012, 1))
This is probably overkill for something you're only doing once, but it's much nicer than using a for
loop or something similar if you're doing this a lot. It makes your code say just what you want to achieve, rather than the mechanics for how you're doing it.
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