比较时代并获得最大的收益 [英] Comparing Times and get the greatest

问题描述

您好我如何比较并获得时间x是否大于时间y？



例子。

 DateTime x = DateTimeNow（）; 
 DateTime now = DateTime.Now; 
 TimeSpan diff = now  -  x; 
 System.Console.Write（ 文件停留时间：time Differnece： + diff） ; 
 
 DateTime time =   00：30：00.000; 
 
 如果（diff > 时间） //  这是我得到错误的地方 
 {
 System.Console.Write（ 文件时间太长：时间不同： + diff）; 
} 
  else  
 {
 System.Console.Write（  文件仍然是新的： + diff）; 
} 

提前感谢您的帮助。

解决方案

< blockquote> DateTime 是时间点，其中 TimeSpan 是持续时间。

考虑到这一点，想一想！



两个时间点之间的差异是持续时间。

例如昨天中午（一个时间点）和今天中午（一个时间点）之间的差异是24小时（持续时间）。



两个持续时间之间的差异是再次持续时间。

例如5分钟（持续时间）和3分钟（持续时间）之间的差异是2分钟（持续时间）。



现在你可以详细说明添加/减去持续时间的含义/持续时间/持续时间/时间点。

但是有些组合可能没有意义。



最后， DateTime 和 TimeSpan 可能无法提供上述所有可能的操作。



干杯

Andi

 DateTime first = GetFirstDate（）; 
 DateTime second = GetSecondDate（）; 
 
  if （first.Date.Equals（second.Date））
 {
  //  日期相等 
} 
 
  in  linq：
 
e = >  DateTime.Compare（e.FirstDate.Value，SecondDate）>  =  0  

您正在比较DateTime到了TimeSpan。我想你的意思是

 TimeSpan time = new TimeSpan（0,30,0）; 
 if（diff> time）... 

Hi How do I compare and get if time x is greater than time y?

EXAMPLE.

DateTime x = DateTimeNow();
DateTime now = DateTime.Now;
TimeSpan diff = now - x;
System.Console.Write("File over stayed : time Differnece : " + diff); 

DateTime time = "00:30:00.000";
  
if (diff > time ) //This is where I get an Error
{
   System.Console.Write("File time too long : time Differnece : " + diff);
}
else
{
   System.Console.Write("File still new :"+diff);
}

Thanks in advance for your help.

解决方案

DateTime is a point in time, where as TimeSpan is a duration.
With this in mind, think of it!

The difference between two points in time is a duration.
E.g. the difference between yesterday noon (a point in time) and today noon (a point in time) is 24 hours (a duration).

The difference between two durations is a duration again.
E.g. the difference between 5 minutes (duration) and 3 minutes (duration) is 2 minutes (duration).

Now you can elaborate yourself what it means to add/subtract durations/points in time to/from durations/points in time.
Some combinations may not be meaningful, though.

Finally, the DateTime and TimeSpan may not provide all possible operations from above.

Cheers
Andi

DateTime first = GetFirstDate();
DateTime second = GetSecondDate();

if (first.Date.Equals(second.Date))
{
    // the dates are equal
}

in linq:

e => DateTime.Compare(e.FirstDate.Value, SecondDate) >= 0

You are comparing a DateTime to a TimeSpan. I think you meant

TimeSpan time = new TimeSpan(0, 30, 0);
if(diff > time) ...

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