<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h2>js中的继承</h2>
</body>
<script>
function extend(distinct,src) {
if(typeof src === ‘object‘){
for(var name in src){
distinct.prototype[name] = src[name];
}
}else{
for(var name in src.prototype){
distinct.prototype[name] = src.prototype[name];
}
}
return distinct;
}
//对象F，子对象-基类
function F() {}
F.prototype.name = ‘F‘;//属性name
var f = {
age:7,
sex:‘aa‘
};
function P() {
}
P.prototype.title = ‘T‘;
var SuperF = extend(F,f);
SuperF = extend(SuperF,P);
var superF = new SuperF();
alert(superF.name);
alert(superF.age);
alert(superF.title)
</script>
</html>
原文：http://www.cnblogs.com/lliule/p/7880469.html