主要功能

本系统中包含如下6大功能模块：

前台服务：该模块主要包括开台点菜、维护菜品、签单、结账等功能，其中维护菜品功能包括添加和取消菜品，能够取消菜品的前提条件是尚未签单，即处于开单状态，结账时则要求所有商品都要签单，否则不允许结账。

后台管理：该模块主要包括台号管理、菜系管理和菜品管理功能，其中菜系用来对菜品进行分类。

销售统计：该模块用来分段统计营业额，可以按日、月和年进行统计，其中日统计是按消费单和销售的商品统计销售额，月统计是按日期和每日的销售额统计销售额，年统计是按日期和月份统计销售额。

系统安全：该模块主要包括交接班、锁定系统和修改密码功能，其中交接班功能在操作员换岗时使用，锁定系统在操作员临时离开时使用。

人员管理：该模块主要包括档案管理、管理员管理和操作权限管理功能，其中管理员管理功能用来管理系统的操作员，权限管理功能用来管理系统操作员具有的操作权限。

初始化系统：该功能用来对系统进行初始化，初始化后系统数据将全部被删除。-Main function

This system includes the following six modules:

Front desk: Founding of the module includes a la carte dishes maintenance, signing, closing and other functions, which include maintenance of dishes to add and cancel dishes, to cancel the dishes is not a prerequisite for signing, that is to open a single state, when the checkout requires that all goods must sign the bill, or allow checkout.

Admin: This module includes sets of number management, management, and cuisine dishes management functions, including cuisine dishes used to classify.

Sales Statistics: The Statistics module is used to segment sales, you can daily, monthly and annual statistics, which is based on statistics alone, and sales of consumer goods sales statistics, monthly statistics are based on date and daily sales statistics sales, annual statistics are statistics by date and month of sales.

System Security: The module includes shift, lock and modify the system password functions, including changing of