Introduction - If you have any usage issues, please Google them yourself
version requirements : procedures reflect object-oriented programming ideas; Require flexibility to add new items, multiple users to purchase one-time billing functions; Tip : The following three categories can be used to solve the problem : 1. Goods category (Goods) : a commodity, including the name, price information 2. Shopping basket category (Basket) : a shopping cart, already contains a choice of three things. Store : Xiaofang facilitate procedures owner