如何在C#中定义自定义方法？

在C#中定义自定义方法，使用以下语法 −

<Access Specifier> <Return Type> <Method Name>(Parameter List) {
Method Body
}

The following are the various elements of a method −

• Access Specifier − This determines the visibility of a variable or a method from another class.

• Return type − A method may return a value. The return type is the data type of the value the method returns. If the method is not returning any values, then the return type is void.

• Method name − Method name is a unique identifier and it is case sensitive. It cannot be same as any other identifier declared in the class.

  

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• Parameter list − Enclosed between parentheses, the parameters are used to pass and receive data from a method. The parameter list refers to the type, order, and number of the parameters of a method. Parameters are optional; that is, a method may contain no parameters.

• Method body − This contains the set of instructions needed to complete the required activity.

Let us see an example −

Example

 Live Demo

using System;

namespace Demo {
   class NumberManipulator {
      public int FindMax(int num1, int num2) {
         /* local variable declaration */
         int result;

         if (num1 > num2)
         result = num1;
         else
         result = num2;
         return result;
      }

      static void Main(string[] args) {
         /* local variable definition */
         int a = 90;
         int b = 15;
         int ret;
         NumberManipulator n = new NumberManipulator();

         //calling the FindMax method
         ret = n.FindMax(a, b);
         Console.WriteLine("Max value is : {0}", ret );
         Console.ReadLine();
      }
   }
}

输出

Max value is : 90

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