<html>

<body>

<script>

  //实现JavaScript继承的步骤:
  //1:写父类
  //2:写子类
  //3:用Object.create()来实现继承
  //4:该构造器
function Aminal(wz){//父类
this.wz = wz ; } Aminal.prototype.eat = function (){//父类方法 alert(this.wz+"食屎") ; } function Dog (name){//子类
Aminal.call(this,"前科动物") ;
this.name = name ; } Dog.prototype = Object.create(Aminal.prototype) ;//继承的实现 Dog.prototype.constructor = Dog ;//改构造器 var d = new Dog("旺财") ; d.eat() ;//实现继承后调用父类的eat()方法 </script>
</body> </html>
05-11 16:53