这样可以吗

来源：7-2 编程练习

柒壹柒

2019-10-02 22:06:48

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <script>  
        //补充代码
        function Animal(name,food) {
            this.name=name;
            this.food=food;
            this.say=function(){
                alert(this.name+"喜欢吃"+this.food);

            }
        }
        function Dog(){
            this.name="狗狗";
            this.food="骨头";
        }
        var aniDog=new Dog();
        var ani= new Animal();
        ani.say.call(aniDog,"","");
    </script> 
</body>
</html>

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