（7）设计模式：bridge

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设计模式：bridge

如果在子类的扩展中有2个维度，想解耦合，则用桥接。

package com.bjsxt.dp.bridge;public class Boy {private String name;public String getName() {return name;}public void setName(String name) {this.name = name;}public void pursue(MM mm) {//Gift g = new WarmGift(new Flower());Gift g = new WildGift(new Ring());//give(g, mm);}public void give(Gift g, MM mm) {}}

package com.bjsxt.dp.bridge;public class Flower extends GiftImpl {}

package com.bjsxt.dp.bridge;public class Gift {protected GiftImpl impl;}

package com.bjsxt.dp.bridge;public class GiftImpl {}

package com.bjsxt.dp.bridge;public class Ring extends GiftImpl {}

package com.bjsxt.dp.bridge;public class WarmGift extends Gift{public WarmGift(GiftImpl impl) {this.impl = impl;}}

package com.bjsxt.dp.bridge;public class WildGift extends Gift {public WildGift(Ring ring) {this.impl = impl;}}

package com.bjsxt.dp.bridge;public class Ring extends GiftImpl {}

package com.bjsxt.dp.bridge;public class MM {private String name;public String getName() {return name;}public void setName(String name) {this.name = name;}}

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