实验一 超市POS机收银系统

一 实验要求

• 　　数据文件：收银员用户信息、商品信息

• 　　完成功能

–　　收银员登录系统，循环进行销售操作

–　　每次销售可以录入多个商品项和数量，最后向控制台输出收银条，包括：商品列表/数量、总金额

• 　　必须使用面向对象方法实现

二 问题的分析

本实验要求用面向对象的方法完成，因此应该利用面向对象的方法对本实验要求的内容进行模拟。

三 数据结构

建立3个类：收银员类、销售单类、商品类。根据要求设计各类的方法和属性。

-Experiment a supermarket cash register system POS, an experimental requirements •　Data files: cashier user information, commodity information •　completion- cashiers log, cycles sales operation- can be entered for each sales item number and quantity of goods, and finally to the control Taiwan export cashier articles, including: the list of goods/quantity, the total amount of •　must use the object oriented method, two issues of this study required the completion of object-oriented approach, it should make use of object-oriented method of the contents of the experimental requirements simulation. Three data structures to establish three categories: Class cashier, sales of single-class, commodity. According to design various types of methods and properties.