//工厂
function FruitMaker() {
//function 后不带方法名,这里cococola未定义,make return时,返回 FruitMaker.cococola
this.cococola = function cococola (price) {
console.log("生成一瓶Coca-Cola,多少钱:" + price);
}
this.xuebi = function xuebi(price) {
console.log("生成一瓶可乐,多少钱:" + price);
}
}
//生产线
FruitMaker.prototype.make = function (water, price) {
try {
var func = this[water];
func.prototype = FruitMaker.prototype;
return new func(price);
} catch (error) {
console.log("很抱歉, 公司暂时不能生产" + water + "这种果汁, ....");
}
}
var maker = new FruitMaker();
var cocoCola = maker.make("cococola", "3.1");
console.log(cocoCola);
var xuebi = maker.make("xuebi", "3.2");
console.log(xuebi);
var fenda = maker.make("fenda", "3.3");
console.log(fenda);
如果需要开发新产品(这里 ->芬达)
//生产线(新开发产品)
FruitMaker.prototype.extend = function (obj) {
for (var key in obj) {
this[key] = obj[key];
}
};
调用的时候:
maker.extend({
"fenda": function coco(price) {
console.log("生成一瓶fenda,多少钱:" + price);
}
});
var fenda = maker.make("fenda", "3.3");
console.log(fenda);