./航空航天大學《面向?qū)ο蟪绦蛟O計語言》課程設計報告圖書管理系統(tǒng)學號：：日期：目錄HYPERLINKF:\大一下學期\課設\劉明艷圖書管理系統(tǒng)\面向?qū)ο蟪绦蛟O計語言課設1.doc<<setw<20><<MyBookInfo.BookAuthor<<"出版商"<<setw<30><<MyBookInfo.BookPress<<"出版日期" <<setw<8><<MyBookInfo.BookPublicationDate;}voidSearchBook<> //圖書查詢{ charBookCode[6]; if<CountBook<>==0> { cout<<"圖書不存在"<<endl; return; } cout<<"請輸入圖書編號"<<endl; cin>>BookCode; if<!IsBookExist<BookCode>> { cout<<"圖書不存在"<<endl; return; } structBookInfoMyBook; GetPosition<BookCode,&MyBook>; cout<<"編號"<<setw<6><<MyBook.BookCode<<"書名"<<setw<20><<MyBook.BookName<<"作者" <<setw<20><<MyBook.BookAuthor<<"出版商"<<setw<30><<MyBook.BookPress<<"出版日期" <<setw<8><<MyBook.BookPublicationDate; if<MyBook.BookStatus=='1'> //若書借出,則顯示借閱的讀者的信息 ShowAReader<MyBook.ReaderCode>; elsecout<<"該書未被借閱"<<endl; }voidSearchReader<> //讀者查詢{ charReaderCode[6]; if<CountReader==0> { cout<<"讀者不存在"<<endl; return; } cout<<"請輸入讀者編號"<<endl; cin>>ReaderCode; if<!IsReaderExist<ReaderCode>> { cout<<"讀者不存在"<<endl; return; } ShowAReader<ReaderCode>; intBorrowCount=IsBorrowed<ReaderCode>; if<BorrowCount==0> cout<<"讀者未借閱該書"<<endl; else { cout<<"讀者借閱了"<<BorrowCount<<"冊"<<endl; FILE*fp; if<<fp=fopen<"bookinfo.dat","rb">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } structBookInfoMyBook; inti=0; while<fread<&MyBook,BOOKLEN,1,fp>> { if<strcmp<MyBook.ReaderCode,ReaderCode>==0> { i++; cout<<i<<MyBook.BookCode<<MyBook.BookName<<MyBook.BookAuthor<<endl; } } fclose<fp>; } }voidShowAReader<char*ReaderCode> //顯示指定編號的讀者詳細信息{ FILE*fp; if<<fp=fopen<"readerinfo.dat","rb">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } structReaderInfoMyReader; while<fread<&MyReader,READERLEN,1,fp>==NULL> if<strcmp<MyReader.ReaderCode,ReaderCode>==0> break; cout<<"借閱讀者"<<ReaderCode<<MyReader.ReaderName<<MyReader.Sex<<endl; fclose<fp>;}intInvalidBookPosition<> //查詢第一條無效圖書記錄在文件中的位置{ intInvalidPs=-1; intcount=0; FILE*fp; if<<fp=fopen<"bookinfo.dat","rb">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } structBookInfoMyBook; while<fread<&MyBook,BOOKLEN,1,fp>> { if<MyBook.IsAvailable=='0'> { InvalidPs=count; break; } count++; } fclose<fp>; returnInvalidPs;}intIsBookExist<char*ChkBookCode> //查詢指定圖書在文件中是否存在{ intIsExist=0; FILE*fp; if<<fp=fopen<"bookinfo.dat","rb">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } structBookInfoMyBook; while<fread<&MyBook,BOOKLEN,1,fp>> { if<strcmp<MyBook.BookCode,ChkBookCode>==0&&MyBook.IsAvailable> { IsExist=1; break; } } fclose<fp>; returnIsExist;}intIsBorrow<char*BookCode> //判斷圖書是否已經(jīng)借出,在借返回1,否則返回0{ structBookInfotemp; intIsbBorrow=0; FILE*fp; if<<fp=fopen<"bookinfo.dat","rb">>!=NULL> { while<fread<&temp,BOOKLEN,1,fp>> if<strcmp<temp.BookCode,BookCode>==0&&temp.BookStatus=='1'> { IsbBorrow=1; break; } } fclose<fp>; returnIsbBorrow;}intGetPosition<char*ModiCode,structBookInfo*MyBook> //獲得待修改圖書的位置{ intcount=0; FILE*fp; if<<fp=fopen<"bookinfo.dat","rb">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } while<fread<MyBook,BOOKLEN,1,fp>> { if<strcmp<MyBook->BookCode,ModiCode>==0&&MyBook->IsAvailable=='1'> break; count++; } fclose<fp>; returncount;}voidAddReaderInfo<> //增加讀者{ structReaderInfoMyReader; cout<<"讀者編號"<<endl; cin>>MyReader.ReaderCode; while<IsReaderExist<MyReader.ReaderCode>> { cout<<"讀者已存在,請重新輸入"<<endl; cin>>MyReader.ReaderCode; } cout<<"讀者"<<endl; cin>>MyReader.ReaderName; cout<<"讀者性別"<<endl; cin>>MyReader.Sex; MyReader.IsAvailable='1'; //新增讀者 FILE*fp; if<<fp=fopen<"readerinfo.dat","rb+">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } intSetPs; SetPs=InvalidReaderPosition<>; if<SetPs=-1> fseek<fp,0,SEEK_END>; elsefseek<fp,<long>READERLEN*SetPs,SEEK_SET>; fwrite<&MyReader,READERLEN,1,fp>; fclose<fp>; cout<<"添加讀者成功,按回車鍵繼續(xù)添加,現(xiàn)有讀者"<<CountReader<><<"人"<<endl; cin.ignore<>; getchar<>;}voidModifyReaderInfo<> //修改讀者信息{ structReaderInfoMyReader; charModifyCode[6]; if<CountReader<>==0> { cout<<"無法修改"<<endl; return; } cout<<"請輸入要修改的編號"<<endl; cin>>ModifyCode; if<!IsReaderExist<ModifyCode>> { cout<<"讀者不存在"<<endl; return; } intModiPosition=0; ModiPosition=GetRdPosition<ModifyCode,&MyReader>; cout<<"讀者"<<endl; cin>>MyReader.ReaderName; cout<<"讀者性別"<<endl; cin>>MyReader.Sex; FILE*fp; if<<fp=fopen<"readerinfo.dat","rb+">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } fseek<fp,<long>READERLEN*ModiPosition,SEEK_SET>; fwrite<&MyReader,READERLEN,1,fp>; fclose<fp>; cout<<"修改讀者成功,按回車鍵繼續(xù)"<<endl; cin.ignore<>; getchar<>;}voidDelReaderInfo<> //刪除讀者信息{ charDelCode[6]; if<CountReader<>==0> { cout<<"無法刪除"<<endl; return; } cout<<"請輸入要刪除的讀者編號"<<endl; cin>>DelCode; if<!IsReaderExist<DelCode>> { cout<<"讀者不存在,無法刪除"<<endl; return; } intBorrowedNum; BorrowedNum=IsBorrowed<DelCode>; //如果讀者有書還未還,那不可以刪除讀者 if<BorrowedNum> { cout<<"不可以刪除,有書還未還"<<endl; return; } FILE*fp; if<<fp=fopen<"readerinfo.dat","rb+">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } structReaderInfoMyReader; intModiPosition=0; ModiPosition=GetRdPosition<DelCode,&MyReader>; MyReader.IsAvailable='0'; fseek<fp,<long>READERLEN*ModiPosition,SEEK_SET>; fwrite<&MyReader,READERLEN,1,fp>; fclose<fp>; cout<<"刪除成功,現(xiàn)有讀者"<<CountReader<><<"人"<<endl; }intIsBorrowed<char*ReaderCode> //判斷是否有書未還{ structBookInfotemp; intBorrowedNum=0; FILE*fp; if<<fp=fopen<"bookinfo.dat","rb">>!=NULL> while<fread<&temp,BOOKLEN,1,fp>> if<strcmp<temp.ReaderCode,ReaderCode>==0&&temp.BookStatus=='1'> BorrowedNum++; fclose<fp>; returnBorrowedNum;}intGetRdPosition<char*ModiCode,structReaderInfo*MyReader> //獲得待修改讀者記錄的位置{ intcount=0; FILE*fp; if<<fp=fopen<"readerinfo.dat","rb">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } while<fread<MyReader,READERLEN,1,fp>> { if<strcmp<MyReader->ReaderCode,ModiCode>==0&&MyReader->IsAvailable=='1'> break; count++; } fclose<fp>; returncount;}intIsReaderExist<char*ChkCode> //查詢讀者是否存在{ intIsExist=0; FILE*fp; if<<fp=fopen<"readerinfo.dat","rb">>==NULL> { cout<<"文件打開錯誤"<<endl; exit<0>; } structReaderInfoMyReader; while<fread<&MyReader,READERLEN,1,fp>> { if<strcmp<MyReader.ReaderCode,ChkCode>==0&&MyReader.IsAvailable=='1'> { IsExist=1; break; } } fclose<fp>; returnIsExist;}intInvalidReaderPosition<> //查詢第一條無效讀者的位置{ intInvalidPs=-1; intcount=0; FILE*fp; if<<fp=fopen<"Readerinfo.dat","rb">>==NULL> { cout<<"文件打開失敗"<<endl; exit<0>; } structReaderInfoMyReader; while<fread<&MyReader,READERLEN,1,fp>> { if<MyReader.IsAvailable=='0'> { InvalidPs=count; break;