- 实例可以被克隆（Javascript的继承就是基于原型的）
function People()
{
/**
* 钱
*/
var money = 0;
/**
* 克隆
*/
function clone()
{
function Copy(){}
Copy.prototype = this;
return new Copy();
}
return{
money:money,
clone:clone
}
}
var xiaoming = new People();
xiaoming.money = 1000;
var zhansan = xiaoming.clone();
console.log(zhansan.money) //输出:'1000'
原型
