c#桥接模式(bridge结构模式）

桥接模式(bridge结构模式）c#简单例子

在前面的玩家中每增加一个行为，就必须在每个玩家中都增加，通过桥接模式将行为提取出来了，减少变化

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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;   namespace adapterpattern {     public partial class bridge : Form     {         public bridge()         {             InitializeComponent();         }           private void btnDisplay_Click(object sender, EventArgs e)         {             play p1 = new play1();             p1.setPlayAction(new move());             p1.run();             this.listBox1.Items.Add(p1.playstring);             play p2 = new play2();             p2.setPlayAction(new jump());             p2.run();             this.listBox1.Items.Add(p2.playstring);         }     }     //意图(Intent）将抽象部分与实现部分分离，使它们都可以独立地变化。     public abstract class play//抽象部分     {         public string playstring { get; set; }         protected playAction pa;         public void setPlayAction(playAction pa)//使用组合         {             this.pa = pa;         }         public abstract void action();//抽象部分变化         public void run()         {             pa.action();//执行实现部分             action();         }     }     public class play1 : play     {         public override void action()         {             playstring = "play1" + pa.actionstring;         }     }     public class play2 : play     {         public override void action()         {             playstring = "play2" + pa.actionstring;           }     }     public abstract class playAction//对实现部分进行抽象     {         public string actionstring;         public abstract void action();     }     public class move : playAction//实现玩家移动行为     {         public override void action()         {             actionstring = "move";         }     }     public class jump : playAction//实现玩家跳跃行为     {         public override void action()         {             actionstring = "jump";         }     } }