下面是一个小例子，用装饰器来延迟消息发送：

    1.  // 利用装饰器来实现消息的延迟
    2.   const ResponseMessageDecoratorFactory = (times: number): MethodDecorator => {
    3.     return (...args: any[]) => {
    4.       const [,, descriptor] = args;
    5.       const method = descriptor.value;
    6.       descriptor.value = ()=> {
    7.         setTimeout(()=> {
    8.           method();
    9.         }, times);
    10.       }
    11.     }
    12.   }
    14.   class Player {
    16.     @ResponseMessageDecoratorFactory(2000)
    17.     public run() {
    18.       console.log('hello,ts!');
    19.     }
    20.   }
    22.   new Player().run()