[javascript]一种比较通用的js继承过程 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
    <script>
        function Person(name, gender) {
            this.name = name;
            this.gender = gender;
        }
        Person.prototype.showName = function() {
            alert(this.name);
        }
        Person.prototype.showGender =function() {
            alert(this.gender);
        }
　　
        function Worker(name, gender, job) {
　　　　　　　// Step1
            Person.call(this, name, gender);
            this.job = job;
        }
   　　　// Step2
        for (var i in Person.prototype) {
            Worker.prototype[i] = Person.prototype[i];
        }
        Worker.prototype.showJob = function() {
            alert(this.job);
        }
        var oW1 = new Worker("hello", "male", "coder");
        oW1.showJob();
    </script>
</body>
</html>

 

posted @ 2015-07-26 23:04  钟山  阅读(141)  评论(0)    收藏  举报