C#中的DateTimeOffset.Compare()方法用于比较两个DateTimeOffset对象,并指示第一个是早于第二个,等于第二个还是晚于第二个。它返回一个整数值,
<0-如果val1早于val2
0-如果val1与val2相同
> 0-如果val1晚于val2
以下是语法-
public static int Compare (DateTimeOffset val1, DateTimeOffset val1);
在上面,val1是要比较的第一个对象,而val2是要比较的第二个对象。
现在让我们看一个实现DateTimeOffset.Compare()方法的示例-
using System;
public class Demo {
public static void Main() {
DateTimeOffset dateTimeOffset1 = new DateTimeOffset(2019, 09, 09, 8, 20, 10, new TimeSpan(-5, 0, 0));
DateTimeOffset dateTimeOffset2 = new DateTimeOffset(2019, 10, 09, 8, 20, 10, new TimeSpan(-5, 0, 0));
Console.WriteLine("DateTimeOffset1 = {0}", dateTimeOffset1);
Console.WriteLine("DateTimeOffset2 = {0}", dateTimeOffset2);
int res = DateTimeOffset.Compare(dateTimeOffset1, dateTimeOffset2);
// returns <0 since DateTimeOffset1 is earlier than DateTimeOffset2
Console.WriteLine(res);
}
}输出结果
这将产生以下输出-
DateTimeOffset1 = 9/9/2019 8:20:10 AM -05:00 DateTimeOffset2 = 10/9/2019 8:20:10 AM -05:00 -1
现在让我们来看另一个实现DateTimeOffset.Compare()方法的示例-
using System;
public class Demo {
public static void Main() {
DateTimeOffset dateTimeOffset1 = new DateTimeOffset(2019, 09, 09, 8, 20, 10, new TimeSpan(-5, 0, 0));
DateTimeOffset dateTimeOffset2 = new DateTimeOffset(2019, 09, 09, 8, 20, 10, new TimeSpan(-5, 0, 0));
Console.WriteLine("DateTimeOffset1 = {0}", dateTimeOffset1);
Console.WriteLine("DateTimeOffset2 = {0}", dateTimeOffset2);
int res = DateTimeOffset.Compare(dateTimeOffset1, dateTimeOffset2);
//返回0
Console.WriteLine(res);
}
}输出结果
这将产生以下输出-
DateTimeOffset1 = 9/9/2019 8:20:10 AM -05:00 DateTimeOffset2 = 9/9/2019 8:20:10 AM -05:00 0