pos机程序代码说明

当收银员刷商品的条形码时，光电扫描仪会接受条形码信息将其存入Barcode中，

然后有程序调用存储有商品条形码，商品名称，价格的数据库，将数据库

中的条形码和Barcode对比，当二者相同时输出商品信息。程序通过收银员

按下收银系统界面的“确认”键来确定购买的商品条形码全部输入电脑，

不再接收扫描仪输入，执行程序向终端（屏幕）输出顾客应付款金额等信息，同时

由打印机打印购物小票。-pos machine code instructions when the cashier brush goods bar code, the optical scanner will accept it into the Barcode bar code information, and then call a stored procedure there is a product bar code, product name, price database, a database of bar codes and Barcode contrast, when both output the same product information. Program through the cashier pressing the cash register system interface " Confirm"　button to purchase the product bar codes to identify all the input into the computer, scanner is no longer receiving input, the implementation of the program to the terminal (screen) output of the customer should pay the amount of other information, while the printer store receipts.