超市的运营管理系统的核心代码部分，是程序员必备的编程指导原代码部分，系统的核心代码给出了程序员学习编程语言的部分资料例子-supermarket operator management system part of the core code, the programmer is required to guide the programming part of the original code, the core code is a programmer learning programming language part of the information examples