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面向对象继承实例(a如何继承b问题)(自写)

　　本文标签：面向对象,继承

复制代码 代码如下:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>面向对象继承实例</title>
<script type="text/javascript">
window.onload = function(){
function parent(age,name){
this.age = age;
this.name = name;
}
parent.prototype.show = function(){
alert(父级方法);
}
function child(age,name,job){
parent.apply(this,arguments);
this.job = job;
}
(function(){
for(var i in parent.prototype){
child.prototype[i]=parent.prototype[i]
}
})();

var b = new parent(14,侠客行);
var a = new child(15,狼侠,侠客);
a.show();

}
</script>
</head>
<body>
<h1>面向对象继承实例</h1>
<p>经常看到面试题有关继承问题 a如何继承b 决定写一下，其实继承就是继承父级的属性和方法</p>
</body>
</html>