在 C# 中使用月份编号获取月份名称

给定一个数字N (1<= N <=12) ，任务是从C# 中的月份编号中获取月份名称。

例子：

Input: N = 2
Output: February
  
Input: N = 5
Output: May

方法 1：使用DateTime.ToString()方法：该方法可用于获取月份的完整名称和缩写名称。

Step 1: Get the Number N.

Step 2: Create an object of DateTime using the DateTime Struct.

Step 3: Converts the value of the current DateTime object to its equivalent string representation.

Step 4: This string contains the name of the month.

下面是上述方法的实现：

C#

DateTime date = new DateTime(year, month, day);;

C#

// to get the Abbreviated month name 
string month_name = date.ToString("MMM");

// to get the full month name 
string month_name = date.ToString("MMMM");

C#

// C# program to Get a Month Name
// from a Month Number
using System;
   
public class GFG{
     
    // function to get the abbreviated month name
    static string getAbbreviatedName(int month) 
    {
        DateTime date = new DateTime(2020, month, 1);
         
        return date.ToString("MMM");
    }
     
    // function to get the full month name
    static string getFullName(int month) 
    {
        DateTime date = new DateTime(2020, month, 1);
         
        return date.ToString("MMMM");
    }
     
    static public void Main ()
    { 
        int N = 3; 
        Console.WriteLine("Full Month Name : " + getFullName(N));
         
        N = 7;
        Console.WriteLine("Abbreviated Month : " + getAbbreviatedName(N));
    } 
}

输出：

// C# program to Get a Month Name
// from a Month Number
using System;
using System.Globalization;
   
public class GFG{
     
    // function to get the full month name
    static string getFullName(int month) 
    {
        return CultureInfo.CurrentCulture.
            DateTimeFormat.GetMonthName
            (month);
    }
     
    static public void Main ()
    { 
        int N = 3; 
        Console.WriteLine("Full Month Name : " + getFullName(N));
         
        N = 7;
        Console.WriteLine("Full Month Month : " + getFullName(N));
    } 
}

方法二：使用GetMonthName()方法：该方法用于获取月份的全名。

Step 1: Get the Number N.

Step 2: Create an object of CultureInfo and then get the month name using DateTimeFormat.GetMonthName() method.

Step 3: This string contains the name of the month.

下面是上述方法的实现：

C＃

// C# program to Get a Month Name
// from a Month Number
using System;
using System.Globalization;
   
public class GFG{
     
    // function to get the Abbreviated month name
    static string getAbbreviatedName(int month) 
    {
        return CultureInfo.CurrentCulture.
            DateTimeFormat.GetAbbreviatedMonthName
            (month);
    }
     
    static public void Main ()
    { 
        int N = 3; 
        Console.WriteLine("Abbreviated Month Name : " + getAbbreviatedName(N));
         
        N = 7;
        Console.WriteLine("Abbreviated Month Month : " + getAbbreviatedName(N));
    } 
}

输出：

Full Month Name : March
Abbreviated Month : Jul

方法三：使用GetAbbreviatedMonthName ()方法：该方法用于获取月份的缩写名称。

Step 1: Get the Number N.

Step 2: Create an object of CultureInfo and then get the month name using DateTimeFormat.GetAbbreviatedMonthName() method.

// to get the Abbreviated month name
string monthName = CultureInfo.CurrentCulture.
DateTimeFormat.GetAbbreviatedMonthName(month);

Step 3: This string contains the name of the month.

下面是上述方法的实现：

C＃

// to get the full month name
string monthName = CultureInfo.CurrentCulture.
DateTimeFormat.GetMonthName(month);

输出：

// C# program to Get a Month Name
// from a Month Number
using System;
using System.Globalization;
   
public class GFG{
     
    // function to get the full month name
    static string getFullName(int month) 
    {
        return CultureInfo.CurrentCulture.
            DateTimeFormat.GetMonthName
            (month);
    }
     
    static public void Main ()
    { 
        int N = 3; 
        Console.WriteLine("Full Month Name : " + getFullName(N));
         
        N = 7;
        Console.WriteLine("Full Month Month : " + getFullName(N));
    } 
}