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6 changes: 3 additions & 3 deletions command/lijunhuayc/readme.md
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Expand Up @@ -479,13 +479,13 @@ static void setThreadSelf(Thread* thread){


## 4. 杂谈
###优点与缺点
####优点
### 优点与缺点
#### 优点
1. 降低对象之间的耦合度。
2. 新的命令可以很容易地加入到系统中。
3. 可以比较容易地设计一个组合命令。
4. 调用同一方法实现不同的功能

####缺点
#### 缺点
使用命令模式可能会导致某些系统有过多的具体命令类。因为针对每一个命令都需要设计一个具体命令类，因此某些系统可能需要大量具体命令类，这将影响命令模式的使用。
比如上面的PeopleBean的属性增加，Receiver针对PeopleBean一个属性一个执行方法，一个Command的实现可以调用Receiver的一个执行方法，由此得需要设计多少个具体命令类呀！！