C# 中 TimeSpan.FromHours() 方法


C# 中的 TimeSpan.FromHours() 方法用于返回表示指定小时数的一个 TimeSpan,该指定精确到最近的毫秒。

语法

语法如下 −

public static TimeSpan FromHours (double val);

上面,值 val 是精确到最近毫秒的小时数。

示例

现在我们来看看一个示例 −

 实时演示

using System;
public class Demo {
   public static void Main(){
      TimeSpan span1 = TimeSpan.FromDays(0.000323456);
      TimeSpan span2 = new TimeSpan(-2, 05, 10);
      TimeSpan span3 = TimeSpan.FromHours(5);
      Console.WriteLine("TimeSpan1 = "+span1);
      Console.WriteLine("TimeSpan2 = "+span2);
      Console.WriteLine("TimeSpan3 = "+span3);
      Console.WriteLine("Result (Comparison of span1 and span2) = "+TimeSpan.Compare(span1, span2));
      Console.WriteLine("Result (Comparison of span2 and span3) = "+TimeSpan.Compare(span2, span3));
   }
}

输出

这将产生以下输出 −

TimeSpan1 = 00:00:27.9470000
TimeSpan2 = -01:54:50
TimeSpan3 = 05:00:00
Result (Comparison of span1 and span2) = 1
Result (Comparison of span2 and span3) = -1

示例

现在我们来看看另一个示例 −

 实时演示

using System;
public class Demo {
   public static void Main(){
      TimeSpan span1 = TimeSpan.FromDays(15);
      TimeSpan span2 = new TimeSpan(5, 15, 30);
      TimeSpan span3 = TimeSpan.FromHours(5);
      Console.WriteLine("TimeSpan1 = "+span1);
      Console.WriteLine("TimeSpan2 = "+span2);
      Console.WriteLine("TimeSpan3 = "+span3);
      Console.WriteLine("Result (Comparison of span1 and span2) = "+TimeSpan.Compare(span1, span2));
      Console.WriteLine("Result (Comparison of span2 and span3) = "+TimeSpan.Compare(span2, span3));
      Console.WriteLine("Result (Comparison of span1 and span3) = "+TimeSpan.Compare(span1, span3));
   }
}

输出

这将产生以下输出 −

TimeSpan1 = 15.00:00:00
TimeSpan2 = 05:15:30
TimeSpan3 = 05:00:00
Result (Comparison of span1 and span2) = 1
Result (Comparison of span2 and span3) = 1
Result (Comparison of span1 and span3) = 1

更新时间: 2019-12-03

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