c# 获取当前日期精确到秒_如何在C＃中的当前日期时间添加秒？

c# 获取当前日期精确到秒

To add seconds in the current date-time, we use AddSeconds() method of DateTime class in C#.

要在当前日期时间添加秒 ，我们在C＃中使用DateTime类的AddSeconds()方法。

Syntax:

句法：

    DateTime DateTime.AddSeconds(double);

AddSeconds() method accepts the value of the seconds as double and returns the DateTime object that can be parsed and updated date time can be found.

AddSeconds()方法将秒的值接受为双精度值，并返回可以解析的DateTime对象，并可以找到更新的日期时间。

C# code to add seconds in current date time

C＃代码在当前日期时间添加秒

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 50 seconds
            DateTime dt2 = dt1.AddSeconds(50);
            //updated date time is 
            Console.WriteLine("Updated date time is: " + dt2.ToString());

            //adding 172800 seconds‬ (i.e. 2 days) in the time 
            dt2 = dt1.AddSeconds(172800);
            //updated date time is 
            Console.WriteLine("Updated date time is: " + dt2.ToString());

            //just to print a new line
            Console.WriteLine();
        }
    }
}

Output

输出量

RUN 1:
Currnt date time is: 10/17/2019 5:25:17 PM
Updated date time is: 10/17/2019 5:26:07 PM
Updated date time is: 10/19/2019 5:25:17 PM

RUN 2:
Currnt date time is: 10/17/2019 5:26:05 PM
Updated date time is: 10/17/2019 5:26:55 PM
Updated date time is: 10/19/2019 5:26:05 PM

翻译自: https://www.includehelp.com/dot-net/add-seconds-in-the-current-date-time-in-csharp.aspx

c# 获取当前日期精确到秒