在超市购物,结算时会收到一张由计算机打印的收银小票,上面有你所购商品的名称、单价、数量、时间等。人们在购物后,对收银小票往往不屑一顾,弃之一边,殊不知将这些小票收集起来,对今后的日常消费会带来好处。 同一种商品,在不同的超市,价格不尽相同,若将这些超市的收银小票进行一番对比,就可了解到哪家 In the supermarket shopping, settlement will receive a cashier receipt printed by the computer, above you have purchased the product name, unit price, quantity, time and so on. After shopping, they often disdain the cashier receipts and discard them. They do not know how to collect these small receipts and bring benefits to their daily consumption in the future. The same kind of goods, in different supermarkets, the price is not the same, if these supermarket cashier receipts for some contrast, you can understand which