ry18

Results 6 comments of ry18

![image](https://user-images.githubusercontent.com/85044192/220571171-51e0fa4e-4bfb-4936-82ec-6d93e18cb9b1.png)

![image](https://user-images.githubusercontent.com/85044192/220841513-692ab4c0-02dc-4a26-952d-a7703b96ee70.png) 代码错误,应该为构造函数的形式 如 ```js function makeCounter() { var privateCounter = 0; function changeBy(val) { privateCounter += val; } return { increment: function () { changeBy(1); }, decrement: function () {...

实现继承 ![image](https://user-images.githubusercontent.com/85044192/220842874-e6f5d2c5-9ae5-41fb-a96a-74bfe8bb2616.png) 应该是Parent

![image](https://user-images.githubusercontent.com/85044192/221514913-b4c65714-f0c7-487e-a54b-e1d19606e961.png)

![image](https://user-images.githubusercontent.com/85044192/221728428-f6544c20-dd87-4352-baac-0e1886805286.png)

![image](https://user-images.githubusercontent.com/85044192/221731301-0fc628aa-6ef3-4265-931c-1faf570970aa.png) 有误,对应的订阅者应当接收全部的消息,而不是单条消息