第二个案例（猜拳游戏）

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添加组件

这里写图片描述

Content Name：labPlayercontent Name：labComputerPlayer Name：labResult

Player类的实现

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace Guess{    public class Player    {        //自动属性//        public string Punch { get; set; }        public int Play(string punch)        {            this.Punch = punch;            int num = 0;            switch (punch)            {                case "tone":                    num = 1;                    break;                case "jian":                    num = 2;                    break;                case "bu":                    num = 3;                    break;            }            return num;        }    }}

Computer类的实现

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace Guess{    public class Computer    {        public string Punch { get; set; }        public int Play()        {            Random r = new Random();//随机数//            int num=r.Next(1,4);            switch(num)            {                case 1:                    this.Punch = "tone";                    break;                case 2:                    this.Punch = "jian";                    break;                case 3:                    this.Punch = "bu";                    break;            }            return num;        }    }}

Referee（裁判）类的实现

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace Guess{    public class Referee    {        //判断谁赢谁输        public string Win(int playerNum,int computerNum)        {            if(playerNum-computerNum==0)            {                return "double win";            }            else if(playerNum-computerNum==-1||playerNum-computerNum==2)            {                return "player win";            }            else            {                return "computer win";            }        }    }}

主程序的实现

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;namespace Guess{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        //选中需要重构的代码，右键，Refactor->Extract Method        private void Play(string name)        {            Player p = new Player();            int pNum = p.Play(name);            labPlayer.Text = p.Punch;            Computer c = new Computer();            int cNum = c.Play();            labComputer.Text = p.Punch;            Referee r = new Referee();            string result = r.Win(pNum, cNum);            labresult.Text = result;        }        //在图形化界面中，把各个按钮的click事件绑定该函数        private void button_Click(object sender, EventArgs e)        {            Button btn = sender as Button;            Play(btn.Text);        }    }}

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