编辑代码

using System;

public class HelloWorld
{
    public static void Main()
    {
       int a=10;

       int c = ++a;

       Console.WriteLine(c);

        int b =10;

        int d = b++ ;


        Console.WriteLine(d);
        
        int a1 = 10;
        int c1 = a1--;


        Console.WriteLine(c1);

        int b2 = 10;

        int c2 = --b2;
        Console.WriteLine(c2);


        Console.WriteLine("-------练习题-----------");


        a=1;
        b = (a++)+(++a);


        Console.WriteLine("b的答案为："+ b);
        




    }
}