图书馆管理系统的uml图,包括用例图、类图、活动图等,uml of the librarian management system,yonglitu、leitu and so on

图书馆管理系统，含有借还查询等等功能，拿过来和大家分享。谢谢支持！-Library Management System, which contains the functional use of inquiry, etc., take over and share with you all. Thank you support!