1、C语言课程设计图书管理系统C语言课程设计图书管理系统/* * 程序名称: 图书管理入口 * 程序作者: XXX * 创建日期: 2014/5/2 * 最后修改: 2014/5/30*/#include #include #include void print_to_memory();void print_to_file();void addBook();void delBook();void fixBook();void findBook();void borrowBook();void returnBook();/主函数 int main() bool bRun = true; print_
2、to_memory(); /先将文件中的信息输入到内存 printf(欢迎使用图书管理系统！); while(bRun) char userInput20,commend; printf(n=n); printf(1 - 增加图书n); printf(2 - 删除图书n); printf(3 - 修改图书n); printf(4 - 查找图书n); printf(5 - 借阅图书n); printf(6 - 归还图书n); printf(0 - 退出系统n); printf(=n); printf(选择需要进行操作的编号:); commend = gets(userInput)0; switc
3、h(commend) case 1: addBook(); break; case 2: delBook(); break; case 3: fixBook(); break; case 4: findBook(); break; case 5: borrowBook(); break; case 6: returnBook(); break; case 0: print_to_file(); /结束程序时将内存中的信息输出到文件 printf(感谢您的使用！n); bRun = false; break; default : printf(您的输入有误！n); system(PAUSE);
4、return 0; /* * 程序名称: 图书管理类 * 程序作者: XXX * 创建日期: 2014/5/2 * 最后修改: 2014/5/30 */#define LEN sizeof(Nodebook) /定义Nodebook 的长度 /定义书的节点 typedef struct Nodebook char book_name20; char book_author20; char book_ISBN30; int book_number; bool isBorrow; struct Nodebook * nextNode;Nodebook;int bookNum = 0; /书本的数量
5、 Nodebook * head=NULL,* tail=NULL,* tp=NULL; /链表的头指针 和 尾指针 FILE * fbook; /指向文件的指针 /将文件内的信息输到内存 void print_to_memory() if( (fbook=fopen(book.dat,rb) = NULL ) /需要建一个book.dat文件在当前目录下 printf(没有book.dat文件!n); exit(0); void printBook(Nodebook * book); tp = (Nodebook *)malloc(LEN); while( fread(tp,LEN,1,fb
6、ook) != 0 ) if(head = NULL) head = tp; tail = head; else tail-nextNode = tp; tail = tp; bookNum+; /printBook(tp); /用于测试输出到内存 tp = (Nodebook *)malloc(LEN); fclose(fbook); /printf(输出成功n=n); /将信息输到文件保存 void print_to_file() if( (fbook=fopen(book.dat,wb) = NULL ) printf(没有book.dat文件!n); exit(0); if(head
7、!= NULL) tp = head; int i; for(i=0;i nextNode; fclose(fbook); /printf(n=n保存成功n);/输出书本的信息 void printBook(Nodebook * book) printf(书名: ); puts(book-book_name); printf(作者: ); puts(book-book_author); printf(ISBN: ); puts(book-book_ISBN); printf(编号: %dn,book-book_number); if(book-isBorrow) printf(是否外借: 已外
8、借n); else printf(是否外借: 未外借n); /添加一本书 void addBook() Nodebook *tmp; tmp = (Nodebook *)malloc(LEN); bookNum+; printf(请输入书名:); gets(tmp-book_name); printf(请输入作者:); gets(tmp-book_author); printf(请输入ISBN:); gets(tmp-book_ISBN); tmp-book_number = bookNum; tmp-isBorrow = false; tmp-nextNode = NULL; if(book
9、Num = 1) head = tmp; tail = head; else tail-nextNode = tmp; tail = tmp; printf(添加成功！n);/通过书的编号查找 返回指向书结构体的指针Nodebook * find_Bynumber(int snumber) Nodebook * p,* ret; p = head; bool bFind = false; if(snumber bookNum | snumber book_number = snumber) printBook(p); ret = p; bFind = true; break; else ret
10、 = NULL; p = p-nextNode; if(!bFind) printf(没有找到您要的书籍！n); return ret;/通过书名或书的作者查找 返回指向书结构体的指针 Nodebook * find_Byname(char sname,bool bState) Nodebook * p,* ret; ret = NULL; bool bFind; if(bookNum book_name,sname) = 0) printBook(p); ret = p; bFind = true; break; else bFind = false; p = p-nextNode; els
11、e p = head; while(p != NULL) if(strcmp(p-book_author,sname) = 0) printBook(p); ret = p; bFind = true; break; else bFind = false; p = p-nextNode; if(!bFind) printf(没有找到您要的书籍！n); return ret;/删除一本书 void delBook() void cutBook(Nodebook *); bool bRun = true; Nodebook * book; char userInput20,sname20,comm
12、end; int snumber; while(bRun) printf(1 - 按编号查找删除n); printf(2 - 按书名查找删除n); printf(3 - 按作者查找删除n); printf(0 - 退出删除n); printf(请选择需要进行操作的编号: ); commend = gets(userInput)0; switch(commend) case 1: printf(请输入编号: ); snumber = atoi(gets(sname); book = find_Bynumber(snumber); if(book != NULL) cutBook(book); b
13、reak; case 2: printf(请输入书名: ); gets(sname); book = find_Byname(sname,true); if(book != NULL) cutBook(book); break; case 3: printf(请输入作者: ); gets(sname); book = find_Byname(sname,false); if(book != NULL) cutBook(book); break; case 0: bRun = false; break; default: printf(您的输入有误！n); /执行删除 void cutBook(
14、Nodebook * book) void true_cut(Nodebook *); char userInput20,commend; if(book-isBorrow) printf(书籍已外借，不能删除！n); else printf(1 - 确认删除n); printf(2 - 取消删除n); printf(请选择需要进行的操作: ); commend = gets(userInput)0; switch(commend) case 1: true_cut(book); break; case 2: break; default: printf(您的输入有误！n); /确认删除 vo
15、id true_cut(Nodebook * book) Nodebook * p,* tmp,* ret; if(book-book_number = 1) tmp = head; head = head-nextNode; p = head; while(p != NULL) p-book_number -= 1; p = p-nextNode; free(tmp); else if(book-book_number = bookNum) tmp = tail; p = head; while(p != NULL) if(p-book_number = bookNum-2) tail =
16、p-nextNode; break; p = p-nextNode; free(tmp); else p = head; while(p != NULL) if(p-book_number = book-book_number) ret-nextNode = p-nextNode; tmp = p-nextNode; while(tmp != NULL) tmp-book_number -= 1; tmp = tmp-nextNode; free(p); break; ret = p; p = p-nextNode; printf(删除成功！n); bookNum-;/修改书的信息 void
17、fixBook() void modifyBook(Nodebook *); bool bRun = true; Nodebook * book; char userInput20,sname20; int snumber; while(bRun) printf(1 - 按编号查找修改n); printf(2 - 按书名查找修改n); printf(3 - 按作者查找修改n); printf(0 - 退出修改n); printf(请选择需要进行操作的编号: ); char commend = gets(userInput)0; switch(commend) case 1: printf(请输
18、入编号: ); snumber = atoi(gets(sname); book = find_Bynumber(snumber); if(book != NULL) modifyBook(book); break; case 2: printf(请输入书名: ); gets(sname); book = find_Byname(sname,true); if(book != NULL) modifyBook(book); break; case 3: printf(请输入作者: ); gets(sname); book = find_Byname(sname,false); if(book
19、!= NULL) modifyBook(book); break; case 0: bRun = false; break; default: printf(您的输入有误！n); /执行修改 void modifyBook(Nodebook * book) void true_modify(char ,Nodebook *,int); bool bRun = true; char userInput20,newinfo20; if(book-isBorrow) printf(书籍已外借，不能修改！n); else while(bRun) printf(1 - 修改书名n); printf(2
20、- 修改作者n); printf(3 - 修改ISBNn); printf(0 - 退出修改n); printf(请选择需要进行操作的编号：); char commend = gets(userInput)0; switch(commend) case 1: printf(请输入书名: ); gets(newinfo); true_modify(newinfo,book,1); break; case 2: printf(请输入作者: ); gets(newinfo); true_modify(newinfo,book,2); break; case 3: printf(请输入ISBN: );
21、 gets(newinfo); true_modify(newinfo,book,3); break; case 0: bRun = false; break; default: printf(您的输入有误！n); /确认修改 void true_modify(char newinfo,Nodebook * book,int num) char userInput20,commend; printf(1 - 确认修改n); printf(2 - 取消修改n); printf(选择需要进行操作的编号:); commend = gets(userInput)0; switch(commend) c
22、ase 1: switch(num) case 1: strcpy(book-book_name,newinfo); break; case 2: strcpy(book-book_author,newinfo); break; case 3: strcpy(book-book_ISBN,newinfo); break; printf(修改成功！n); break; case 2: break; default: printf(您的输入有误！n); /查找书籍 void findBook() bool bRun = true; char userInput20,sname20; int snu
23、mber; while(bRun) printf(1 - 按编号查找n); printf(2 - 按书名查找n); printf(3 - 按作者查找n); printf(0 - 退出查找n); printf(选择需要进行操作的编号:); char commend = gets(userInput)0; switch(commend) case 1: printf(请输入编号: ); snumber = atoi(gets(sname); find_Bynumber(snumber); break; case 2: printf(请输入书名: ); gets(sname); find_Byname(sname,true); break; case 3: printf(请输入作者: ); gets(sname); find_Byname(sname,false); break; case 0: bRun = false; break; default: printf(您的输入有误！n); /借阅书籍 void borrowBook() void trueBorrow(Nodebook *); bool bRun = true; char userInput2
