本系统由系统管理员模块、收银员模块和普通用户模块组成，包括功能需求描述、数据库设计、详细设计等内容。
This system by the system administrator module, cashier module and a regular user modules, including functional requirements specification, database design, detailed design and so on.
本系统由系统管理员模块、收银员模块和普通用户模块组成，包括功能需求描述、数据库设计、详细设计等内容。
This system by the system administrator module, cashier module and a regular user modules, including functional requirements specification, database design, detailed design and so on.
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