using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Plus
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("请输入A或者B");//屏幕输出
int a, b;//定义两个整型变量
Console.Write("A = ");
a = Convert.ToInt32(Console.ReadLine());//用户输入
Console.Write("B = ");
b = int.Parse(Console.ReadLine());
int c = a + b;//等量代换
Console.WriteLine("{0} + {1} = {2}", a, b, c);//占位符
Console.ReadKey();//the end
}
}
}