C 图书管理系统代码.doc

#includeiostream.h#includeconio.h#includefstream.h#includeiomanip.h #includestring.hconst int Maxr=100 ;/ const int Maxb=100; /const int Maxbor=5; /class Book /private: int tag; / 1: 0:int no; /char name20; / char author20;/char cbs20; /int onshelf; / 1: 2: public: Book(); char *getname()/ return name; char *getauthorname() / return author; char *getcbsname()/ return cbs; int getno()/ return no; int gettag()/ return tag; void setname(char na) / strcpy(name,na); void setonshelf(int oa) onshelf=oa; void delbook()/ tag=1; void addbook(int n,char *na,char *aa,char *ca,int oa) / tag=0; no=n; strcpy(name,na); strcpy(author,aa); strcpy(cbs,ca); onshelf=oa; int borrowbook() / if (onshelf0) onshelf-; return 1; return 0; void retbook()/ onshelf+; void disp() / coutsetw(6)nosetw(18)namesetw(10)authorsetw(10)cbssetw(10)onshelfendl; ; class BDatabase / private: int top; /Book bookMaxb; /public: BDatabase() /book.txtbook Book b; top=-1; fstream file(book.txt,ios:in); while (1) file.read(char *)&b,sizeof(b); if (!file) break; top+; booktop=b; file.close(); void clear() / top=-1; int addbook(int n,char *na,char *aa,char *ca,int oa) / Book *p=query1(n); if (NULL=p) top+; booktop.addbook(n,na,aa,ca,oa); return 1; return 0; Book *query1(int bookid) / for(int i=0;i=top;i+) if(booki.getno()=bookid &booki.gettag()=0) return &booki; return NULL; Book *query2(char a) / Book *e; int r=0; for(int i=0;i=top;i+) if(strcmp(booki.getname(),a)=0 &booki.gettag()=0) if(r=0) coutsetw(6)setw(18)setw(10)setw(10)setw(10)disp(); r+; if(r=0) cout!endl; return NULL; Book *query3(char a) / Book *e; int r=0; for(int i=0;i=top;i+) if(strcmp(booki.getauthorname(),a)=0 &booki.gettag()=0) if(r=0) coutsetw(6)setw(18)setw(10)setw(10) setw(10)disp(); r+; if(r=0) cout!endl; return NULL; Book *query4(char a) / Book *e; int r=0; for (int i=0;i=top;i+) if (strcmp(booki.getcbsname(),a)=0 &booki.gettag()=0) if(r=0)coutsetw(6)setw(18)setw(10)setw(10)setw(10)disp(); r+; if(r=0) cout!endl; return NULL; void bookdata(); /void disp() for(int i=0;i=top;i+) if(booki.gettag()=0) booki.disp(); BDatabase() /bookbook.txt fstream file(book.txt,ios:out); for(int i=0;i=top;i+) if(booki.gettag()=0) file.write(char *)&booki,sizeof(booki); file.close(); ; void BDatabase:bookdata() char choice3; char bname40;char auname40;char cname40;char ch;int choice4;int bookid;int bookod;Book *b; while (choice3!=0) coutnttt* *nendl; coutttt* 1. *endl; coutttt* 2. *endl; coutttt* 3. *endl; coutttt* 4. *endl; coutttt* 5. *endl; coutttt* 6. *endl; coutttt* 0. *endl; coutchoice3; switch(choice3) case 1: coutbookid; b=query1(bookid); if(b!=NULL) cout!endl; break; coutbname; coutauname; coutcname; coutbookod; addbook(bookid,bname,auname,cname,bookod); cout!; getch(); break; case 2: coutbookid; b=query1(bookid); if(b=NULL) cout! endl; break; coutendl; coutsetw(6)setw(18)setw(10)setw(10) setw(10)disp(); coutch; if(ch=y) coutbname; coutauname; coutcname; coutbookod; b-setname(bname); b-setonshelf(bookod); cout!; getch(); break; case 3: coutbookid; b=query1(bookid); if(b=NULL) cout!delbook(); cout!; getch(); break; case 4: coutttt* 1. *endl; coutttt* 2. *endl; coutttt* 3. *endl; coutttt* 4.*endl; coutttt* 0. *endl; coutchoice4; switch(choice4) case 1: coutbookid; b=query1(bookid); if(b=NULL) cout!; break; coutsetw(6)setw(18)setw(10)setw(10)setw(10)disp(); break; case 2: coutbname; b=query2(bname); break; case 3: coutauname; b=query3(auname); break; case 4: coutcname; b=query4(cname); break; case 0: break; break; case 5: coutsetw(6)setw(18)setw(10)setw(10) setw(10)endl; disp(); getch(); break; case 6: clear(); break; default: break; class Reader/ private: int tag; / 1 0 int no; /char name10; / int borbookMaxbor; / public: Reader() ; char *getname() / return name; int gettag() / return tag; int getno() / return no; void setname(char na) / strcpy(name,na); void delbook() / 1: 0: tag=1; void addreader(int n,char *na) / tag=0; no=n; strcpy(name,na); for(int i=0;iMaxbor;i+) borbooki=0; void borrowbook(int bookid) / for(int i=0;iMaxbor;i+) if (borbooki=0) borbooki=bookid; return ; int retbook(int bookid) / for(int i=0;iMaxbor;i+) if(borbooki=bookid) borbooki=0; cout!endl; return 1; cout!endl; return 0; void disp() / int have=0; int bz=0; coutsetw(5)nosetw(21)namesetw(15); for(int i=0;iMaxbor;i+) if(borbooki!=0) if(bz=0) have=1; coutborbookittendl; bz+; else coutrtttttborbookittsetw(15)endl; if(have=0) coutt endl;class RDatabase / private: int top; / Reader readMaxr; / public: RDatabase() /reader.txtread Reader s; top=-1; fstream file(reader.txt,ios:in); / while (1) file.read(char *)&s,sizeof(s); if (!file) break; top+; readtop=s; file.close(); / reader.txt void clear() / top=-1; int addreader(int n,char *na) / Reader *p=queryid(n); if (p=NULL) top+; readtop.addreader(n,na); return 1; else cout!; return 0; Reader *queryid(int readerid) / for (int i=0;i=top;i+) if (readi.getno()=readerid&readi.gettag()=0) return &readi; return NULL;Reader *queryname(char readername10) / for (int i=0;i=top;i+) if (strcmp(readi.getname(),readername)=0 & readi.gettag()=0) return &readi; return NULL; void disp() / for(int i=0;i=top;i+) readi.disp(); void readerdata(); /RDatabase() /readreader.txt fstream file(reader.txt,ios:out); for (int i=0;i=top;i+) if (readi.gettag()=0) file.write(char *)&readi,sizeof(readi); file.close(); ;void RDatabase:readerdata() char choice1; char rname20; int readerid;char readername10;int choice2;Reader *r; while(choice1!=0) coutnttt* *nendl; coutttt* 1. *endl; coutttt* 2. *endl; coutttt* 3. *endl; coutttt* 4. *endl; coutttt* 5. *endl; coutttt* 6. *endl; coutttt* 0. *endl; coutchoice1; switch(choice1) case 1: coutreaderid; coutrname; addreader(readerid,rname); cout!endl; getch(); break; case 2: coutreaderid; r=queryid(readerid); if(r=NULL) cout! endl; break; coutrname; r-setname(rname); cout!endl; getch(); break; case 3: coutreaderid; r=queryid(readerid); if(r=NULL) cout! delbook(); cout!endl; getch(); break; case 4: coutttt* 1. *endl; coutttt* 2. *endl; coutttt* 0. *endl; coutchoice2; switch(choice2) case 1: coutreaderid; r=queryid(readerid); if(r=NULL) cout! endl; break; coutsetw(10)setw(17)setw(20)disp(); break; case 2: coutreadername; r=queryname(readername); if(r=NULL) cout!endl; break; coutsetw(10)setw(17)setw(20)disp(); break; case 0: break; break; case 5: coutsetw(10)setw(17)setw(20)endl; disp(); getch(); break; case 6: clear(); break; default: break; void main() / char choice5; int bookid,readerid; RDataba