例如：

    2.   const ErrorDecorator: MethodDecorator = (target: object, propertyKey: string | symbol, descriptor: PropertyDescriptor) => {
    3.     const method = descriptor.value;
    4.     try {
    5.       method()
    6.     } catch(err: any) {
    7.       console.log(`%c自定义错误信息`, 'color: green;font-size: 30px');
    8.       console.log(`%c${err.message}`, 'color: red;font-size:20px');
    9.     }
    10.   }
    12.   class Player {
    13.     @ErrorDecorator
    14.     public run() {
    15.       throw new Error('运行错误啦')
    16.     }
    17.   }
    19.   new Player().run()