ui修改，添加操作结果提示
Merge branch 'master' of https://winupsoftware.visualstudio.com/defaultcollection/_git/Library%20Management%20System
修改ISBN判定，现在允许X和x
修改
推
添加操作结果提示
Merge branch 'master' of https://winupsoftware.visualstudio.com/defaultcollection/_git/Library%20Management%20System
修改
添加表示是否为调试版本的配置常量
小修复
修改错误
修改了删书失败的提示
重做了书目信息，这次是3062本
Merge branch 'master' of https://winupsoftware.visualstudio.com/defaultcollection/_git/Library%20Management%20System
Merge remote-tracking branch 'github/master'