餐厅信息管理系统，该系统能实现开台，点菜，查看桌位信息，消费查询，结账，切换用户等功能，用C#语言实现，需要连接SQL数据库-Restaurant information management system that enables Founding, a la carte, to view a table of information, consumer inquiries, billing, switch user and other functions, with the C# langu