为什么要使用条码在商品上印刷条码的目的在于通过扫描设备对商品条码扫描识读，使商品条码的代码被输入到收款机或计算机中，收款机（计算机）再通过商品代码，即可以在预先建立的数据库中查询该产品的各类信息（价格、数量、生产厂家等），并进行自动售货，也可以计算销... Why use bar codes to print bar codes on goods The purpose of bar code scanning through the scanning device to read the product bar code code is entered into the cash register or computer, cash register (computer) and then through the product code, you can In pre-established database for all kinds of information on the product (price, quantity, manufacturer, etc.), and vending, you can also calculate the pin ...