gwege

Record:Table

userId: intbookId: intcount: intdate:Date

AdminOperateRecord

BookKindOperator

Read(int bookId):boolRead(BookKind bookKind):boolWrite(int bookId):boolWrite(BookKind bookKind):bool

BookOperator

Date

User(Library lib):Login()name: char[]id: intrecords: Listfee: floatQueryBook(int bookId)//查询书籍位置和具体信息isHalted: bool//是否被冻结，欠款会被冻结，缴纳所以欠款就会解冻BorrowBook(Book book):boolContinueBorrowBook(Book book):boolReturnBook(Book book):boolPayFees(float fee):bool//学生交钱

User

RequestHandler(string path)//读取文件checkRequestList():voidDoRequest(Request request):bool 执行请求getRequester():UsersaveFile():bool//存到文件

RequestHandler:

name: char[]books: Listprice: floatpublishInfo: char[]state:bool

BookKind

FileOperator

Book

[Condition]

Record

Table

Library()://bookOperator: BookOperatoruserOperator: UserOperatorbookBuffer: ListrecordBuffer: ListrequestHandler:RequestHandler~Library()://存档

Library

Read(int id):boolWrite(int id):bool

UserOperater

userId: intbookId: intCount: intdate: Date

UserOperateRecord

Admin

name: char[]bookId: intcount: intdate: Datecategory: int

Request: