个回答

• 小婆娘

  2016-02-01 20:14:05

  function DetectorBase(){

  throw new Error('Abstract class can not be invoked directly!');

  }

  DetectorBase.prototype.detect=function(){

  console.log('Detection starting');

  }

  DetectorBase.prototype.stop=function(){

  console.log('Detector stopped.');

  }

  DetectorBase.prototype.init=function(){

  throw new Error('Error');

  }

  function LinkDetector(){

  
  

  }

  LinkDetector.prototype=Object.create(DetectorBase.prototype);

  LinkDetector.prototype.constructor=LinkDetector;

  var link=new LinkDetector();

  /**重写init*/

  link.init=function(){

  console.log(this);

  }

  link.detect();

  link.stop();

  link.init();

  我是这样理解的，不知道对不对。你参考参考。

  0