c#输出当前日期和当前时间_如何在C＃中的当前日期时间添加小时数？

我们在C＃中使用DateTime类的AddHours()方法。

Syntax:

句法：

    DateTime DateTime.AddHours(double);

以下C＃代码在当前日期时间添加小时数

using System;
 
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            //creating an object of DateTime class
            //and, initializing it with the current time 
            //using "Now"           
            DateTime dt1 = DateTime.Now;
 
            //printing current date time
            Console.WriteLine("Currnt date time is: " + dt1.ToString());
            
            //another DateTime object to store the updated date time
            //adding 30 hours
            DateTime dt2 = dt1.AddHours(30);
            //updated date time is 
            Console.WriteLine("Updated date time is: " + dt2.ToString());
 
            //adding 48 hours ‬ (i.e. 2 days) in the time 
            dt2 = dt1.AddHours(48);
            //updated date time is 
            Console.WriteLine("Updated date time is: " + dt2.ToString());
 
            //just to print a new line
            Console.WriteLine();
        }
    }
}

输出结果

RUN 1:
Currnt date time is: 10/17/2019 5:33:04 PM
Updated date time is: 10/18/2019 11:33:04 PM
Updated date time is: 10/19/2019 5:33:04 PM
 
RUN 2:
Currnt date time is: 10/17/2019 5:35:53 PM
Updated date time is: 10/18/2019 11:35:53 PM
Updated date time is: 10/19/2019 5:35:53 PM