编辑代码

using System;  
  
class Program  
{  
    static int GetMax(int number1, int number2)  
    {  
        int max = number1 > number2 ? number1 : number2;  
        return max;  
    }  
  
    static void Main()  
    {  
        int num1 = 10;  
        int num2 = 20;  
        int result = GetMax(num1, num2);  
  
        Console.WriteLine("两个数中的最大值是: {0}", result);  
    }  
}