C#算数运算符实例

using System;
using System.Threading.Channels;

namespace ConsoleApp2
{
    
    
    class Program
    {
    
    
        static void Main(string[] args)
        {
    
    
            //获取
            Console.WriteLine("请输入第一个整数");
            int a = int.Parse(Console.ReadLine());
            Console.WriteLine("请输入第二个整数");
            int b = int.Parse(Console.ReadLine());
            int c;

            //运算
            c = a + b;
            Console.WriteLine("a加b为：" + c);
            c = a - b;
            Console.WriteLine("a减b为：" + c);
            c = a * b;
            Console.WriteLine("a乘b为：" + c);
            c = a / b;
            Console.WriteLine("a除b为：" + c);
            c = a % b;
            Console.WriteLine("a余b为：" + c);
            Console.ReadLine();
            
			//演示a++与++a，a--与--a的区别
            Console.WriteLine("此时a=" + a);
            Console.ReadLine();
            Console.WriteLine("a自增：" + a++);
            Console.WriteLine("此时a=" + a);
            Console.ReadLine();
            Console.WriteLine("a自减：" + a--);
            Console.WriteLine("此时a=" + a);
            Console.ReadLine();
            Console.WriteLine("自增a：" + ++a);
            Console.WriteLine("此时a=" + a);
            Console.ReadLine();
            Console.WriteLine("自减a：" + --a);
            Console.WriteLine("此时a=" + a);
            Console.ReadLine();
            Console.WriteLine("程序执行完毕，回车继续");
            
            //+=与-=
            Console.WriteLine(a);
            a += 1;//即为a = a + 1;
            Console.WriteLine("a += 1后为"a);
            
            Console.WriteLine(a);
            a -= 1;//即为a = a - 1;
            Console.WriteLine("a -= 1后为"a);
        }
    }
}