封装，策略，Asp换脸

封装、策略

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

namespace 算
{
    public interface Isuan
    {
         int calculate(int a, int b);
    }
    public  class add : Isuan
    {
        public int calculate(int a,int b)
        {
            return a + b;
        }
    }
    public class sub : Isuan
    {
        public int calculate(int a, int b)
        {
            return a - b;
        }
    }
    public class mal : Isuan
    {
        public int calculate(int a, int b)
        {
            return a * b;
        }
    }
    public class div : Isuan
    {
        public int calculate(int a, int b)
        {
            return a / b;
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace 算
{
    class fuhao
    {
        private Isuan fh;
        public fuhao(string a)
        {
            switch(a)
            {
                case"+":
                    fh = new add();
                    break;
                case "-":
                    fh = new sub();
                    break;
                case "*":
                    fh = new mal();
                    break;
                case "/":
                    fh = new div();
                    break;
            }
        }
        public int jisuan(int a, int b)
        {
            return fh.calculate(a, b);
        }

    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace 算
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private int An;
        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void button1_Click(object sender, EventArgs e)
        {            fuhao clacuter = new fuhao(comboBox1.Text);            An = clacuter.jisuan(int.Parse(textBox1.Text), int.Parse(textBox2.Text));
            if (textBox3.Text == An.ToString())
            {
                MessageBox.Show("回答正确！");
            }
            else
            {
                MessageBox.Show("回答错误！");
            }
            textBox1.Clear();
            textBox2.Clear();
            comboBox1.Text = "";
            textBox3.Clear();
        }

        private void textBox3_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                fuhao clacuter = new fuhao(comboBox1.Text);
                An = clacuter.jisuan(int.Parse(textBox1.Text), int.Parse(textBox2.Text));

                if (textBox3.Text == An.ToString())
                {
                    MessageBox.Show("回答正确！");
                }
                else
                {
                    MessageBox.Show("回答错误！");
                }
                textBox1.Clear();
                textBox2.Clear();
                comboBox1.Text = "";
                textBox3.Clear();
            }
        }
    }
}

asp换脸

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
///fuhao 的摘要说明
/// </summary>
public class fuhao
{
    private Isuan s;
    public fuhao(string a)
    {
        switch (a)
        {
            case"+":
                s = new add();
                break;
            case "-":
                s = new sub();
                break;
            case "*":
                s = new cml();
                break;
            case "/":
                s = new div();
                break;
        }
    }
    public int suan(int a, int b)
    {
        return s.cla(a,b);
    }

}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
///suan 的摘要说明
/// </summary>

     public interface Isuan
    {
         int cla(int a, int b);
    }
    public class add:Isuan
    {
        public int cla(int a, int b)
        {
            return a + b;
        }
    }
    public class sub:Isuan
    {
        public int cla(int a, int b)
        {
            return a - b;
        }
    }
    public class cml:Isuan
    {
        public int cla(int a, int b)
        {
            return a * b;
        }
    }
    public class div:Isuan
    {
        public int cla(int a, int b)
        {
            return a / b;
        }
    }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    private int An;
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        fuhao b = new fuhao(TextBox2.Text);
        An=b.suan(int.Parse(TextBox1.Text),int.Parse(TextBox3.Text));
        if (TextBox4.Text == An.ToString())
        {
            Response.Write("回答正确！");
        }
        else
        {
            Response.Write("回答错误！");
        }
    }
}