C# DateTimeOffset.Compare()用法及代码示例

DateTimeOffset.Compare(DateTimeOffset，DateTimeOffset)方法用于比较两个DateTimeOffset对象，并显示第一个对象早于第二个对象，等于第二个对象还是第二个对象。

用法： public static int Compare (DateTimeOffset first, DateTimeOffset second);

参数：
first:这是要比较的第一个对象。
second:这是要比较的第二个对象。

返回值：此方法返回一个带符号的整数，该整数指示第一个参数的值早于，晚于或与第二个参数的值相同。

小于零：意思是第一要早于第二。
零：意思是第一等于第二。
大于零：意思是第一要晚于第二。

以下示例程序旨在说明DateTimeOffset.Compare(DateTimeOffset，DateTimeOffset)方法的使用：

示例1:

// C# program to demonstrate the 
// DateTimeOffset.Compare(DateTimeOffset,  
// DateTimeOffset) Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        // creating object of  DateTimeOffset 
        DateTimeOffset offset1 = new DateTimeOffset(2007, 
                 6, 1, 7, 55, 0, new TimeSpan(-5, 0, 0)); 
  
        // creating object of  DateTimeOffset 
        DateTimeOffset offset2 = new DateTimeOffset(2006, 
                 6, 1, 7, 55, 0, new TimeSpan(-5, 0, 0)); 
  
        // comparing two offset1 and offset2 
        // instance using Compare() method 
        int value = DateTimeOffset.Compare(offset1, offset2); 
  
        if (value > 0) 
        { 
            Console.Write("offset1 is later than offset2 "); 
        } 
        else if (value < 0)  
        { 
            Console.Write("offset1 is earlier than offset2"); 
        } 
        else
        { 
            Console.Write("offset1 is equal to offset2"); 
        } 
    } 
}

输出：

offset1 is later than offset2

示例2:对于ArgumentOutOfRangeException

// C# program to demonstrate the 
// DateTimeOffset.Compare(DateTimeOffset, 
// DateTimeOffset) Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        // creating object of  DateTimeOffset 
        DateTimeOffset offset1 = new DateTimeOffset(2006, 
                 6, 1, 7, 55, 0, new TimeSpan(-5, 0, 0)); 
  
        // creating object of  DateTimeOffset 
        DateTimeOffset offset2 = new DateTimeOffset(2006, 
                 6, 1, 7, 55, 0, new TimeSpan(-5, 0, 0)); 
  
        // comparing two offset1 and offset2 
        // instance using Compare() method 
        int value = DateTimeOffset.Compare(offset1, offset2); 
  
        if (value > 0)  
        { 
            Console.Write("offset1 is later than offset2 "); 
        } 
        else if (value < 0) 
        { 
            Console.Write("offset1 is earlier than offset2"); 
        } 
        else 
        { 
            Console.Write("offset1 is equal to offset2"); 
        } 
    } 
}

输出：

offset1 is equal to offset2

参考：

https://docs.microsoft.com/en-us/dotnet/api/system.datetimeoffset.compare?view=netframework-4.7.2

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注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 DateTimeOffset.Compare() Method in C#。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。