JAVA编译购物车功能

ct("001","金龙鱼大豆油","桶","上海宝山",35,10));books.put(newString("002"),newBookObject("002","淮牌食用盐","袋","南京浦口",1,10));books.put(newString("003"),newBookObject("003","雀巢咖啡礼盒","盒","上海黄埔",4