C语言的大作业（商城管理系统），可以注册与登陆管理员和顾客。
管理员可以增加、删除、初始化、更新商场及其所含商品的数量、价钱、产地、编号、库存等，也可以查看顾客的购物记录，可以对某特定类型顾客进行排序
顾客可以初始化自己的钱包，并进行购买，查询自己的购物记录(C language's big job (mart management system), can register and login administrators and customers.
The administrator can add, delete, initialize, and update the quantity, price, origin, number, inventory, etc. of the store and its contained products. It can also view the customer's shopping records and can sort the customers of a certain type.
Customers can initialize their wallets and make purchases to check their shopping history)