如何使用C＃中的内置函数获取每月的总天数？

给定年份Y和月份M ，任务是使用C＃获取一个月中的总天数。

例子：

Input: Y = 2020 N = 02
Output: 29
  
Input: Y = 1996 N = 06
Output: 30

方法1：使用DateTime.DaysInMonth (年，月)方法：此方法用于获取指定月和年中的天数。

Step 1: Get the year and month.

Step 2: The DateTime.DaysInMonth() is used to get the number of days in a month

Step 3: This integer value is the number of days in the month.

下面是上述方法的实现：

C#

int days = DateTime.DaysInMonth(year, month);;

C#

// C# program to Get a Total Number
// of Days in a Month
using System; 
    
public class GFG{ 
      
    // function to get the full month name 
    static int getdays(int year, int month)  
    { 
        int days = DateTime.DaysInMonth(year, month);
          
        return days;
    } 
      
    static public void Main () 
    {  
        int Y = 2020; // year
        int M = 02; // month
          
        Console.WriteLine("Total days in ("
        + Y + "/" + M + ") : "+ getdays(Y, M)); 
    }  
}

输出：

// C# program to Get a Total Number
// of Days in a Month
using System; 
using System.Globalization;
    
public class GFG{ 
      
    // function to get the full month name 
    static int getdays(int year, int month)  
    { 
        int days = CultureInfo.CurrentCulture.
        Calendar.GetDaysInMonth(year, month);
          
        return days;
    } 
      
    static public void Main () 
    {  
        int Y = 2020; // year
        int M = 02; // month
          
        Console.WriteLine("Total days in ("
        + Y + "/" + M + ") : "+ getdays(Y, M)
        + " days"); 
    }  
}

方法2：使用CultureInfo.CurrentCulture.Calendar.GetDaysInMonth(year，month)方法：此方法用于获取指定月份和年份中的天数。 Ÿ欧需要使用System.Globalization命名空间。

Step 1: Get the year and month.

Step 2: The CultureInfo.CurrentCulture.Calendar.GetDaysInMonth() is used to get the number of days in a month

Step 3: This integer value is the number of days in the month.

下面是上述方法的实现：

C＃

Total days in (2020/2) : 29

输出：

int days = CultureInfo.CurrentCulture.Calendar.GetDaysInMonth(year, month);;