JavaScript继承

dangzhao · 发表于 2013-2-7 20:29:42

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
/*People Class*/
var People=function(height,weight){
this.height=height;
this.weight=weight;
};
People.prototype.say=function(){
return "Hi,My Height "+this.height+"cm & Weight "+this.weight+"kg.";
};
/*Man Class*/
var Man=function(height,weight){
this.height=height;
this.weight=weight;
};
Man.prototype.say=People.prototype.say;
Man.prototype.manSay=function(){
return "I am Man!"+" "+this.say();
};
/*Test*/
var p=new People(170,160);
alert(p.say());
var man=new Man(175,165);
alert(man.say());
alert(man.manSay());

</script>
</head>
<body>
</body>
</html>

可能说这是JavaScript继承不太准确，但本人认为这种方式可以实现继承类似的功能。

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