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

namespace 變數宣告賦值使用
{
class Program
{
static void Main(string[] args)
{
//變數使用之前需要宣告和賦值
//宣告 my_variable
int my_variable;

//賦值給my_variable
my_variable = 5;
Console.WriteLine("\nmy_variable contains the value {0}", my_variable);

//給my_variable賦一個新的值
my_variable = 100;
Console.WriteLine("\nmy_variable contains the value {0}", my_variable);

Console.WriteLine("按任意鍵退出程式！");
Console.ReadKey();
}
}
}