代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace 计1练习26
{
class Program
{
static void Main(string[] args)
{
int number1 = 10;
int number2 = 5;
number1 = number1 + number2;
number2 = number1 - number2;
number1 = number1 - number2;

     Console.WriteLine(number1);
     Console.WriteLine(number2);
     Console.ReadKey();
    }
}

}

效果

QQ图片20181024195703.jpg