运用指针实现点菜功能，适合初学者了解指针以及函数调用-Use pointers la carte features, suitable for beginners to understand pointers and function calls

简单的点菜计算器，直接点菜品就能累计价格算出总价-Simple a la calculator, a direct point of the total price of the dishes can be calculated

实现在餐馆的点菜功能，有管理员，服务员，经理三个角色，能够实现人员的增删改查，菜谱的增删改查，还有台桌的增删改查，最后实现收额。使用了通用链表-Implementation in the a la carte restaurant function, administrators, waiter, manager of the three roles to achieve personnel crud, recipes crud, and table crud and finally reali

通过tcp通信，jdbc连接数据库实现一个简单的点菜系统。还使用了多线程，集合类等(Through TCP communication, JDBC connects to the database and implements a simple ordering system. You also use multithreading, collection classes, and so on)