Ts 监听模式

interface Iserver {
    nameChange (value:string):void;
}
// 观察者
class GUser implements Iserver {
    nameChange (value:string) {
        document.write("监听到当前修改了数据"+ value+"\n\r");
    }
}

// 监听
class people {
    private _name:string = "";
    jianting :Array<Iserver> = new Array<Iserver>;

    set name(value:string) {
        this._name = value;
        for (let obj of this.jianting) {
            obj.nameChange(this._name);
        }
    } 

    get name ():string {
        return this._name;
    }
}
let Pos = new people();
let test = new GUser();
let test2 = new GUser();
Pos.jianting.push(test);
Pos.jianting.push(test2);
Pos.name = "张三"

Pos.name = "李四"

Pos.name = "王麻子"