JavaScript继承模式详解-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_44573096/article/details/108492991

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    <title>Document</title>
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    <script>
    // 创建一个animal父类(共有属性color、sex)，一个dog子类(共有属性name和wang())和一个cat子类(共有属性name和miao())，分别用两个子类创建一个实例，要求该实例可以通过继承为其设置color和sex，并用子类的共有属性设置对应属性和方法
    // 解决办法：当父类没有方法时就不需要函数复用，所以用借用构造函数继承来实现即可
    function Animal(color,sex){
        this.color = color;
        this.sex = sex;
    }
    function Dog(color,sex,name){
        Animal.call(this,color,sex);
        this.name = name;
    }
    Dog.prototype.wang = function (){console.log("汪汪汪");};
    function Cat(color,sex,name){
        Animal.call(this,color,sex);
        this.name = name;
    }
    Cat.prototype.miao = function (){console.log("喵喵喵");};
    var oDog = new Dog("黄","公","Q");
    console.log(oDog);
    oDog.wang();
    </script>
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练习-继承