简单的装饰模式
简单的装饰模式
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<script>
function Macbook(){
this.cost = function(){
return 1000
};
};
function Memory(macbook){
this.cost = function(){
return macbook.cost() + 75;
};
};
function BlurayDrive(){
this.cost = function(){
return macbook.cost() + 300;
};
};
var myMacbook = new BlurayDrive( new Memory( new Macbook() ) );
console.log( myMacbook.cost() )
</script>
</body>
</html>
抄自tom大叔的博客。热门那边就有了，去学习吧
天道酬勤
