图书管理系统C代码.doc

#include #include #include #include using namespace std;const int Reader=100;const int Maxb=100;const int Bor=5;class Studentprivate: int tag; int number; char name10; int borbookBor;public: Student() char *getname() return name;int gettag() return tag;int getnumber() return number;void setname(char *na) strcpy(name,na);void delbook() tag=1;void addStudent(int n,char *na) tag=0; number=n; strcpy(name,na); for(int i=0;iBor;i+) borbooki=0;void borrowbook(int bookid)/借书操作for(int i=0;iBor;i+) if (borbooki=0) borbooki=bookid; return; int retbook(int bookid)/还书操作 for(int i=0;iBor;i+) if(borbooki=bookid) borbooki=0; return 1;return 0;void output()/读出读者信息 cout setw(5) number setw(10) name借书编号：; for(int i=0;iBor;i+) if(borbooki!=0) cout borbooki |; cout endl; class RDataprivate: int top; /读者记录指针 Student readReader;public: RData() /构造函数，将Student.txt读到read中 Student s; top=-1; fstream file(Student.txt,ios:in);/打开一种输入文献while (1) file.read(char *)&s,sizeof(s); if (!file)break; top+; readtop=s; file.close();void clear() top=-1;int addStudent(int n,char *na)/查找与否存在 Student *p=equal(n);if (p=NULL) top+; readtop.addStudent(n,na); return 1;return 0;Student *equal(int Studentid)/按编号查找for (int i=0;i=top;i+) if (readi.getnumber()=Studentid & readi.gettag()=0) return &readi;return NULL;void output() for (int i=0;i=top;i+) readi.output();void Studentdata();/读者库维护 RData() /析构函数，将read写到Student.txt文献中 fstream file(Student.txt,ios:out); for (int i=0;i=top;i+) if (readi.gettag()=0) file.write(char *)&readi,sizeof(readi); file.close();void RData:Studentdata()char choice;char rname20;int Studentid;Student *r; while (choice!=0) cout n; cout 读 者 维 护 n; cout n; cout 1.新 增 n; cout n; cout 2.更 改 n; cout n; cout 3.删 除 n; cout n; cout 4.查 找 n; cout n; cout 5.显 示 n; cout n; cout 6.全 删 n; cout n; cout 0.退出 n; cout n; /cout choice; switch (choice) case 1: cout Studentid; cout rname; addStudent (Studentid,rname); break; case 2: cout Studentid; r=equal(Studentid); if (r=NULL) cout 该读者不存在 endl; break; cout rname; r-setname(rname); break; case 3: cout Studentid; r=equal(Studentid); if (r=NULL) cout 该读者不存在 delbook(); break; case 4: cout Studentid; r=equal(Studentid); if (r=NULL) cout 该读者不存在output(); break; case 5: output(); break; case 6: clear(); break; default:cout退出：n;system(cls);break; class Bookprivate: int tag; int number; char name20; int onshelf;public: Book() char *getname() return name; int getnumber() return number; int gettag() return tag; void setname(char na) strcpy(name,na); void delbook() tag=1; void addbook(int n,char *na) tag=0; number=n; strcpy(name,na); onshelf=1; int borrowbook()/借书操作 if (onshelf=1) onshelf=0; return 1; return 0;void retbook()/还书操作 onshelf=1;void output()/输出图书 cout setw(6) number setw(18) name setw(10) (onshelf=1? 在架:已借) endl; class BDatabaseprivate: int top; Book bookMaxb; /图书记录 public: BDatabase()/构造函数，将book.txt读到book中 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) Book *p=equal(n);if (NULL=p) top+; booktop.addbook(n,na); return 1;return 0;Book *equal(int bookid) for (int i=0;i=top;i+) if (booki.getnumber()=bookid &booki.gettag()=0) return &booki; return NULL;void bookdata();void output() for (int i=0;i=top;i+) if (booki.gettag()=0) booki.output();BDatabase()/析构函数，将book写到book.txt文献中 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 choice; char bname40; int bookid;Book *b;while (choice!=0) cout n; cout 图书 维 护 n; cout n; cout 1.新 增 n; cout n; cout 2.更 改 n; cout n; cout 3.删 除 n; cout n; cout 4.查 找 n; cout n; cout 5.显 示 n; cout n; cout 6.全 删 n; cout n; cout 0.退出 n; cout choice;switch (choice) case 1: cout 输入图书编号: bookid; cout 输入图书书名: bname; addbook(bookid,bname); break;case 2: cout 输入图书编号: bookid; b=equal(bookid); if (b=NULL) cout 该图书不存在 endl; break; cout 输入新旳书名: bname; b-setname(bname); break;case 3: cout 读入图书编号: bookid; b=equal(bookid); if (b=NULL) cout 该图书不存在 delbook(); break;case 4: cout 读入图书编号: bookid; b=equal(bookid); if (b=NULL) cout 该图书不存在output(); break;case 5: output(); break;case 6: clear(); break; default:cout退出n; system(cls); break;void main() char choice; int bookid,Studentid; RData StudentDB; Student *r; BDatabase BookDB; Book *b; while(choice!=0) cout n; cout 图 书 管 理 系 统 n; cout n; cout 1.借书 n; cout n; cout 2.还书 n; cout n; cout 3.图书维护 n; cout n; cout 4.读者维护 n; cout n; cout 0.退出 n; cout choice; switch (choice) case 1: system(cls); cout Studentid; cout bookid; r=StudentDB.equal(Studentid);/按编号查找 if (NULL=r) cout 不存在该读者，不能借书 endl; break; b=BookDB.equal(bookid); if (b=NULL) cout 不存在该图书，不能借书borrowbook()=0) cout 该图书已借出，不能借书borrowbook(b-getnumber();system(cls);break;case 2: system(cls); coutStudentid; cout bookid; r=StudentDB.equal(Studentid); if (r=NULL) cout 不存在该读者，不能还书 endl; break; b=BookDB.equal(bookid); if (b=NULL) cout 不存在该图书，不能还书 retbook(); r-retbook(b-getnumber(); break;case 3: system(cls); BookDB.bookdata(); break;case 4: system(cls); StudentDB.Studentdata(); break;default:cout退出n;