代理模式(Proxy)

为另一个对象提供代理或占位符以控制对它的访问。

class Cola {
  constructor() {
    this.length = 0;
  }
  buy(length) {
    this.length = this.length + length;
  }
  get() {
    return this.length;
  }
}

class ColaProxy {
  constructor() {
    this.buyCola = new Cola();
    this.count = 0;
  }
  buy(length) {
    this.buyCola.buy(length);
    this.count++;
  }
  get() {
    return this.buyCola.get();
  }
  getCount() {
    return this.count;
  }
}

export { Cola, ColaProxy };

#代理模式(Proxy)

代理模式(Proxy)