import?book.BookList;
import?user.Admin;
import?user.NormalUser;
import?user.User;

import?java.util.Scanner;

/**
?*?Created?with?IntelliJ?IDEA.
?*?Description:
?*?User:?wave_xiong
?*?Date:?2019-10-31
?*?Time:?11:19
?*/
public?class?Main?{

????public?static?User?login（）{
????????System.out.println（“請(qǐng)輸入你的姓名“）;
????????Scanner?scanner?=?new?Scanner（System.in）;
????????String?name?=?scanner.next（）;
????????System.out.println（“請(qǐng)輸入您的身份（1?表示管理員?0?表示普通用戶）:“）;
????????int?choice?=?scanner.nextInt（）;
????????if（choice?==?1）?{
????????????return??new?Admin（name）;
????????}else?{
????????????return?new?NormalUser（name）;
????????}
????}

????public?static?void?main（String[]?args）?{

????????BookList?bookList?=?new?BookList（）;

????????User?user?=?login（）;

????????while?（true）?{
????????????int?choice?=?user.menu（）;//1
????????????user.doOperation（choicebookList）;
????????}
????}
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-11-25?19:15??tushu\.idea\
?????文件?????????273??2019-10-31?09:12??tushu\.idea\misc.xml
?????文件?????????258??2019-10-31?09:12??tushu\.idea\modules.xml
?????文件???????31016??2019-11-25?19:13??tushu\.idea\workspace.xml
?????文件?????????423??2019-10-31?09:12??tushu\20191031A.iml
?????目錄???????????0??2019-11-25?19:15??tushu\out\
?????目錄???????????0??2019-11-25?19:15??tushu\out\production\
?????目錄???????????0??2019-11-25?19:15??tushu\out\production\20191031A\
?????目錄???????????0??2019-11-25?19:15??tushu\out\production\20191031A\book\
?????文件????????1955??2019-11-25?19:10??tushu\out\production\20191031A\book\Book.class
?????文件????????1036??2019-11-25?19:10??tushu\out\production\20191031A\book\BookList.class
?????文件????????1375??2019-11-25?19:10??tushu\out\production\20191031A\Main.class
?????目錄???????????0??2019-11-25?19:15??tushu\out\production\20191031A\operation\
?????文件????????1304??2019-11-25?19:10??tushu\out\production\20191031A\operation\AddOperation.class
?????文件????????1335??2019-11-25?19:10??tushu\out\production\20191031A\operation\BrrowOperation.class
?????文件????????1303??2019-11-25?19:10??tushu\out\production\20191031A\operation\DelOperation.class
?????文件?????????774??2019-11-25?19:10??tushu\out\production\20191031A\operation\DisplayOperation.class
?????文件?????????629??2019-11-25?19:10??tushu\out\production\20191031A\operation\ExitOperation.class
?????文件????????1192??2019-11-25?19:10??tushu\out\production\20191031A\operation\FindOperation.class
?????文件?????????421??2019-11-25?19:10??tushu\out\production\20191031A\operation\IOperation.class
?????文件????????1362??2019-11-25?19:10??tushu\out\production\20191031A\operation\ReturnOperation.class
?????目錄???????????0??2019-11-25?19:15??tushu\out\production\20191031A\user\
?????文件????????1412??2019-11-25?19:10??tushu\out\production\20191031A\user\Admin.class
?????文件????????1338??2019-11-25?19:10??tushu\out\production\20191031A\user\NormalUser.class
?????文件?????????785??2019-11-25?19:10??tushu\out\production\20191031A\user\User.class
?????目錄???????????0??2019-11-25?19:15??tushu\src\
?????目錄???????????0??2019-11-25?19:15??tushu\src\book\
?????文件????????1653??2019-11-25?19:10??tushu\src\book\Book.java
?????文件?????????808??2019-11-25?19:10??tushu\src\book\BookList.java
?????文件?????????978??2019-11-25?19:10??tushu\src\Main.java
?????目錄???????????0??2019-11-25?19:15??tushu\src\operation\
............此處省略12個(gè)文件信息