深入研究下javascript的面向对象特性(一) 

<html>
    <head>
        <script type="text/javascript">
            function addElement(msg) {
                var _li = document.createElement('li');
                var _text = document.createTextNode(msg);
                var resultBoard = document.getElementById('resultBoard');
                _li.appendChild(_text);
                resultBoard.appendChild(_li);
            }
            //动物构造函数
            function Animal() {
                this.constructor = Animal;
            }
            Animal.prototype = new Object();
            //人构造函数
            function Person(name,age,sex){
                this.name = name;
                this.age = age;
                this.sex = sex;
                this.say = function () {                    
                    alert('I am a Person,My name is '+ this.name + ' and ' + 'my age is '+ this.age + ' and I am a ' + this.sex + '!');
                }
                this.constructor = Person;
            }
            Person.prototype = new Animal();
            
            function Chinese(name,age,sex,party) {
                this.home = 'chinese';
                this.party = party;
                Person.call(this,name,age,sex);
                this.constructor = Chinese;
            }
            
            Chinese.prototype = new Person();
            
        </script>
        <script type="text/javascript">
            window.onload = function () {
                var obj1 = new Object();
                addElement('obj1的构造函数是：'+obj1.constructor);
                var animal1 = new Animal();
                addElement('animal1的构造函数是：'+animal1.constructor);
                var jack = new Person('jack',21,'boy');
                addElement('jack的构造函数是：'+jack.constructor);
                jack.say();
                var fangming = new Chinese('fangming',28,'boy','none');
                addElement('fangming的构造函数是：'+fangming.constructor);
                fangming.say();
                var denglili = new Chinese('denglili',27,'girl','none');
                addElement('denglili的构造函数是：'+denglili.constructor);
                denglili.say();
            }
        </script>
        
    </head>
    <body>
        <h3>javascript Object 测试</h3>
        <hr/>
        <ul id="resultBoard">
            <li>输出结果</li>
        </ul>
    </body>
</html>

 

posted on 2012-07-12 00:04  阿明007  阅读(211)  评论(0)    收藏  举报

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