08JS高级 ——“继承”

时间：2023-03-09 16:43:21
08JS高级 ——“继承” 
<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

    <title></title>

    <script type="text/javascript">

        function Father(name, age) {

            this.name = name;

            this.age = age;

        }

        Father.prototype.sayHi = function () {

            alert(this.name + "," + this.age);

        }

        function Son(name, age, gender) {

            this.gender = gender;

            Father.call(this, name, age); //继承“父类”的成员

        }

        Son.prototype = new Father();//Father.prototype;

        var f1 = new Father("张三", 30);

        f1.sayHi();

        var s1 = new Son("张三", "son", 1, true);

    </script>

</head>

<body>

</body>

</html>

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