1700463732
1700463733
public ConcreteCommand1(){
1700463734
1700463735
super(new ConcreteReciver1());
1700463736
1700463737
}
1700463738
1700463739
//设置新的接收者
1700463740
1700463741
public ConcreteCommand1(Receiver_receiver){
1700463742
1700463743
super(_receiver);
1700463744
1700463745
}
1700463746
1700463747
//每个具体的命令都必须实现一个命令
1700463748
1700463749
public void execute(){
1700463750
1700463751
//业务处理
1700463752
1700463753
super.receiver.doSomething();
1700463754
1700463755
}
1700463756
1700463757
}
1700463758
1700463759
public class ConcreteCommand2 extends Command{
1700463760
1700463761
//声明自己的默认接收者
1700463762
1700463763
public ConcreteCommand2(){
1700463764
1700463765
super(new ConcreteReciver2());
1700463766
1700463767
}
1700463768
1700463769
//设置新的接收者
1700463770
1700463771
public ConcreteCommand2(Receiver_receiver){
1700463772
1700463773
super(_receiver);
1700463774
1700463775
}
1700463776
1700463777
//每个具体的命令都必须实现一个命令
1700463778
1700463779
public void execute(){
1700463780
1700463781
//业务处理
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