C#.NET中的问题求和日期 [英] Problem summing dates in C# .NET

问题描述

大家好

我有这个问题

我需要加1天的总和，但我不知道该怎么做.

结果应为:

天+ 1/月/年

谢谢

Hello everyone

I have this problem

I need sum the day + 1 and I don''t know how to do that.

The result should be:

Day + 1/Month/Year

Thanks

推荐答案

DateTime today = DateTime.Now.Date;
DateTime tomorrow = today.AddDays(1);

DateTime myDateTime = DateTime.Now;
DateTime newDateTime = myDateTime.AddDays(1);

如果您只阅读过文档 [

If only you had read the documentation[^] you might have found such an elementary thing for yourself.

更一般而言，您可以添加/减去System.TimeSpan来涵盖任何可能的时间段.

More generally, you can add/subtract System.TimeSpan to cover any thinkable periods of time.

DateTime before = DateTime.Now;
//wait a bit
DateTime after = DateTime.Now;

TimeSpan duration = after - before;
TimeSpan extraTime = new TimeSpan(2, 12, 21); //2:12:21 hours:minutes:seconds

duration += extraTime; //defined add/subtract for TimeSpan

before += duration; //defined add/subtract for DateTime and TimeSpan (must be right operand)
before = before - duration;

//will not compile, not defined, of course:
//duration = duration - after; 

—SA

—SA

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