说明：  本系统主要功能是实现影牒的租赁管理，为了实现影牒入，出库和库存管理功能需要加上会员信息等资料，同时也需要实现一些基本的报表供操作员进行分析。
(The system main function is to achieve the shadow dispatch of the lease management, in order to achieve the shadow dispatch into, out of libraries and inventory management functions need to add member information, etc., but also need to implement some basic statements for the operator for analysis.)