MVC模式(简单模拟计算器)

       MVC模式实现了职责的分离,便于复用,在不是很复杂的程序中,通常不需要涉及Model部分,下面是一个最简单的计算器的设计. 程序1中业务控制与显示杂糅了,程序2中实现了很好的分离.


程序1:

using System;

class Example
{
    static void Main()
    {
        int x = Convert.ToInt32(Console.ReadLine());
        int y = Convert.ToInt32(Console.ReadLine());

        int n = x + y;
        Console.WriteLine(n);
    }
}

程序2:

using System;

class Controller
{
    private int x;
    private int y;
    public int XX
    {
        set
        {
            x = value;
        }
 
        get
        {
            return x;
        }
    }

    public int YY
    {
        set
        {
            y = value;
        }

        get
        {
            return y;
        }
    }

    public int getSum()
    { 
        return x + y;
    }

}

class View
{
    public string scan()
    {
        return Console.ReadLine();
    }

    public void print(int n)
    {
        Console.WriteLine(n);
    }
}

class Example
{
    static void Main()
    {
        View v = new View();
        int x = Convert.ToInt32(v.scan());
        int y = Convert.ToInt32(v.scan());

        Controller c = new Controller();
        c.XX = x;
        c.YY = y;
        int n = c.getSum();
        v.print(n);
    }
}


你可能感兴趣的:(S1:,C#,s2:,设计模式)