using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace 变量声明赋值使用

{

class Program

{

static void Main(string[] args)

{

//变量使用之前需要声明和赋值

//声明 my_variable

int my_variable;

//赋值给my_variable

my_variable = 5;

Console.WriteLine("\nmy_variable contains the value {0}", my_variable);

//给my_variable赋一个新的值

my_variable = 100;

Console.WriteLine("\nmy_variable contains the value {0}", my_variable);

Console.WriteLine("按任意键退出程序！");

Console.ReadKey();

}

}

}