图书信息管理系统（C语言）

图书信息包括：登录号、书名、作者名、分类号、出版单位、出版时间、价格等。试设计一图书信息管理系统，使之能提供以下功能：系统以菜单方式工作1） 图书信息录入功能(图书信息用文件保存)－－输入2） 图书信息浏览功能－－输出3） 查询和排序功能：(至少一种查询方式)－－算法4） 按书名查询5） 按作者名查询6） 图书信息的删除与修改(可选项)#include <stdio.h>#include <string.h>#include <stdlib.h>#include <conio.h>typedef struct book/*定义结构体*/{char bookname[100] ; /*书名*/char writer[100]; /*作者*/char classnumber[100];/*出版号*/char publisher[100]; /*出版单位*/char time[100]; /*出版日期*/char price[100]; /*价格*/struct book *next;/*下个图书的信息*/}Book;int mima(){int i=0;char user[10]="hut";char Code[10]="416426";char getuser[10];char Getskey[10];while(1){printf("\t\t\t请输入账号：");scanf("%s",getuser);printf("\t\t\t请输入密码：");while(1){Getskey[i]=getch();if(Getskey[i]=='\r')break;else if(Getskey[i]=='\b'){if(i==0)continue;printf("\b");printf(" ");printf("\b");i--;}else{printf("*");i++;}}Getskey[6]='\0';if(strcmp(user, getuser)==0&&strcmp(Code, Getskey)==0)return 1;else{printf("\n\n\t\t\t账号不存在或密码输入错误，请重新输入\n");i = 0;}}}void showmenu1() /*显示管理员菜单*/ {system("cls");printf("\n\n\n\n\n");printf("\t************************************************************\n");printf("\t* *\n");printf("\t* 欢迎来到图书信息管理系统 *\n");printf("\t* *\n");printf("\t* *\n");printf("\t*主菜单*\n");printf("\t* *\n");printf("\t* 1.录入图书信息 *\n");printf("\t* *\n");printf("\t* 2.删除图书信息 *\n");printf("\t* *\n");printf("\t* 3.修改图书信息 *\n");printf("\t* *\n");printf("\t* 4.查询图书信息 *\n");printf("\t* *\n");printf("\t* 5.显示所有图书信息 *\n"); printf("\t* *\n");printf("\t* 6.返回登录界面 *\n");printf("\t* *\n");printf("\t* 7.保存数据并退出系统 *\n"); printf("\t* *\n");printf("\t************************************************************\n\n");}void showmenu2() /*显示游客菜单*/ {system("cls");printf("\n\n\n\n\n");printf("\t************************************************************\n");printf("\t* *\n");printf("\t* 欢迎来到图书信息管理系统 *\n");printf("\t* *\n");printf("\t* *\n");printf("\t*主菜单*\n");printf("\t* *\n");printf("\t* 1.查询图书信息 *\n");printf("\t* *\n");printf("\t* 2.显示所有图书信息 *\n"); printf("\t* *\n");printf("\t* 3.返回登录界面 *\n");printf("\t* *\n");printf("\t* 4.退出系统 *\n"); printf("\t* *\n");printf("\t************************************************************\n\n");}int savebookdata(Book *head)/*将数据保存到文件中*/{Book *p;FILE*fp;fp=fopen("D:\\zuoye.txt","w");p=head->next;do{fprintf(fp,"%s\t",p->bookname); /* 把这个结点的数据全部写入至文件内由于next指针不需要写入至文件，*/fprintf(fp,"%s\t",p->writer);/*因此，数据大小就是sizeof(book)-sizeof(book*)总数据大小减去指针的大小 */fprintf(fp,"%s\t",p->classnumber);fprintf(fp,"%s\t",p->publisher);fprintf(fp,"%s\t",p->time);fprintf(fp,"%s",p->price);fprintf(fp,"\n");p=p->next; /*转换到下一个结点*/}while(p!=NULL);fclose(fp);return 0;}void addnewbook(Book **head)/*录入图书信息*/{int i;Book *p,*s;system("cls");if(*head == NULL) { /* 如果表头为空，先为它分配内存 */*head = (book *)calloc(1, sizeof(book));p = *head;} else { /* 否则，就说明有内容，直接切换到尾结点 */p = *head;while(p->next) p = p->next; }printf("\n\n\n");printf("\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("\t\t\t请问添加几本书："); scanf("%d",&i);printf("\t--------------------------------------------------------\n");while(i){s = (Book *)calloc(1, sizeof(Book)); /*为这个结点分配内存 */printf("\t\t\t请输入书名：");scanf("%s",s->bookname);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入作者：");scanf("%s",s->writer);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入出版号：");scanf("%s",s->classnumber);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入出版单位：");scanf("%s",s->publisher);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入出版日期：");scanf("%s",s->time);printf("\t--------------------------------------------------------\n");printf("\t\t\t请输入价格：");scanf("%s",s->price);printf("\t--------------------------------------------------------\n");printf("\n");printf("\t--------------------------------------------------------\n");i--;p->next=s; /*保存输进去的这个结点*/p=p->next; /*切换到下一个结点*/ p->next=NULL; /*最后一个结点为NULL*/}printf("\t\t\t图书添加成功!!!\n");system("pause");}int readbookdata(Book **head)/*将数据从文件中读取*/ {int n;Book *s, *p;FILE *fp;fp=fopen("d:\\zuoye.txt","r");/* 如果文件打开失败，就返回-1 */if(NULL == fp) { *head = NULL; return -1;} *head = (Book *)calloc(1, sizeof(Book));p = *head; while (!feof(fp)){s = (Book *)calloc(1, sizeof(Book)); /* 为下个结点分配内存空间 */fscanf(fp,"%s",s->bookname);fscanf(fp,"%s",s->writer);fscanf(fp,"%s",s->classnumber);fscanf(fp,"%s",s->publisher);fscanf(fp,"%s",s->time);fscanf(fp,"%s",s->price);p->next=s; /*保存该结点*/p=p->next; /*切换到下一个结点*/p->next=NULL; /*保证最后一个结点为NULL*/}fclose(fp);/* 关闭文件 */return 0; }void deletebook(Book *head) /*删除图书信息*/{system("cls");int flag=0;char name[100],ch[10];Book *p,*t;/* 如果表头为空 */if(head == NULL || head->next == NULL) {printf("没有记录图书信息！\n");system("pause");return;}p=head;printf("\n\n\n");printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("请输入要删除的书名；");scanf("%s",&name);printf("----------------------------------------------------------------------\n");printf("书名\t\t作者名\t\t分类号\t出版单位\t出版时间\t价格\n"); printf("----------------------------------------------------------------------\n"); while(p->next){t=p;p=p->next; /*转换到下一个结点*/if(strcmp(name,p->bookname)==0){flag=1;printf("%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->price);break;}}if(flag==1){printf("是否删除该本图书信息（y/n）");scanf("%s",ch);printf("----------------------------------------------------------------------\n");if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0){t->next=p->next;printf("该书已删除！\n");}elsereturn;}else if(flag==0)printf("没找到那本书！\n");system("pause");}void modifybook(Book *head) /*修改图书信息*/{system("cls");int flag=0;char name[100],ch[10];Book *p,*t;/* 如果表头为空 */if(head == NULL || head->next == NULL) {printf("没有记录图书信息！\n");system("pause");return ;}p=head;printf("\n\n\n");printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("请输入要修改的书名:");scanf("%s",name);printf("--------------------------------------------------------------------\n");while(p->next){p=p->next; /*切换到下一个结点*/if(strcmp(name,p->bookname)==0){flag=1;t=p;printf("书名\t\t作者名\t\t分类号\t出版单位\t出版时间\t价格\n"); printf("--------------------------------------------------------------------\n");printf("%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->price);}}if(flag==1){printf("--------------------------------------------------------------------\n");printf("\t\t是否修改该本图书信息（y/n）:");scanf("%s",ch);printf("\t--------------------------------------------------------------------\n");if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0){int c;printf("\t\t【1】书名\n");printf("--------------------------------------------------------------------\n");printf("\t\t【2】作者\n");printf("--------------------------------------------------------------------\n");printf("\t\t【3】出版号\n");printf("--------------------------------------------------------------------\n");printf("\t\t【4】出版单位\n");printf("--------------------------------------------------------------------\n");printf("\t\t【5】出版日期\n");printf("--------------------------------------------------------------------\n");printf("\t\t【6】价格\n");printf("--------------------------------------------------------------------\n");printf("\t请输入你要修改的内容；");scanf("%d",&c);printf("--------------------------------------------------------------------\n");p=t;switch(c){case 1:printf("\t请输入书名：");scanf("%s",p->bookname);break;case 2:printf("\t请输入作者：");scanf("%s",p->writer);break;case 3:printf("\t请输入出版号：");scanf("%s",p->classnumber);break;case 4:printf("\t请输入出版单位：");scanf("%s",p->publisher);break;case 5:printf("\t请输入出版日期：");scanf("%s",p->time);break;case 6:printf("\t请输入价格：");scanf("%s",p->price);break;}printf("--------------------------------------------------------------------\n");printf("\t恭喜大佬修改成功!!!\n");}}else if(flag==0)printf("对不起，该书库没有该书\n");system("pause");}void searchbook(Book *head) /*查询图书信息*/{system("cls");int choose,flag=0;Book *p;char b[100];/* 如果表头为空 */if(head == NULL || head->next == NULL) {printf("没有记录图书信息！\n");system("pause");return ;}do{system("cls");printf("\n\n\n");printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("\t\t1.按书名查找\n");printf("----------------------------------------------------------------------\n");printf("\t\t2.按作者名查找\n");printf("----------------------------------------------------------------------\n");printf("\t\t返回主菜单(其他数字)\n");printf("----------------------------------------------------------------------\n");printf("\t\t请输入您的选择：");scanf("%d",&choose);printf("----------------------------------------------------------------------\n");p=head;if(choose==1){printf("输入所查书名：");scanf("%s",b);printf("----------------------------------------------------------------------\n\n");while(p->next){p=p->next; /*转换到下一个结点*/if(strcmp(b,p->bookname)==0) /*判断是否找到并输出*/{flag=1;printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("书名\t\t作者名\t\t分类号\t出版单位\t出版时间\t价格\n"); printf("----------------------------------------------------------------------\n");printf("%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->price);;}}if(flag==0)printf("不存在该信息\n");}else if(choose==2){printf("输入所查作者名：");scanf("%s",b);printf("----------------------------------------------------------------------\n\n");while(p->next){p=p->next;/*转换到下一个结点*/if(strcmp(b,p->writer)==0) /*判断是否找到并输出*/{flag=1;printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("书名\t\t作者名\t\t分类号\t出版单位\t出版时间\t价格\n"); printf("----------------------------------------------------------------------\n");printf("%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->price);}}if(flag==0)printf("不存在该信息\n");}elsereturn;system("pause");}while(1);}int printfbook(Book *head) /*显示所有图书信息*/{Book *p;system("cls");/* 如果表头为空 */if(head == NULL || head->next == NULL) {printf("没有记录图书信息！\n");system("pause");return 0;}p=head->next;printf("\n\n\n");printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf(" 图书列表\n");printf("----------------------------------------------------------------------\n");printf("书名\t\t作者\t\tISBN\t出版单位\t出版时间\t价格\n"); printf("----------------------------------------------------------------------\n");do{printf("%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->price);p=p->next; /*转换到下一个结点*/}while(p!=NULL);system("pause");}int main(void){system("cls");Book *head=NULL;readbookdata(&head);system("color 8a");int choice,z,c;printf("\n\n\n");printf("\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");printf("\t\t\t欢迎光临图书信息管理系统\n");printf("\t--------------------------------------------------------\n");printf("\t\t\t【1】游客\n");printf("\t\t\t【2】管理员\n");printf("\t\t\t【3】退出系统\n");printf("\t--------------------------------------------------------\n");while(printf("\t\t\t请选择身份：")&&scanf("%d",&c)!=EOF){if(c==1){showmenu2();while (printf("\t请输入选择项(1-3):")&&scanf("%d",&choice)!=EOF){switch (choice){case 1: /*查询图书信息*/searchbook(head);break;case 2: /*显示所有图书信息*/printfbook(head);break; case 3: /*返回登录界面*/main();break;case 4:exit(0); default:printf("\t输入错误!!!\n");system("pause");break;}showmenu2();}}else if(c==2){z=mima();showmenu1();while (printf("\t请输入选择项(1-6):")&&z==1&&scanf("%d",&choice)!=EOF){switch (choice){case 1: /*录入图书信息*/addnewbook(&head);break; case 2: /*删除图书信息*/deletebook(head);break;case 3: /*修改图书信息*/modifybook(head);break;case 4: /*查询图书信息*/searchbook(head);break;case 5: /*显示所有图书信息*/printfbook(head);break;case 6: /*返回登录界面*/main();break; case 7: /*保存数据并退出系统*/savebookdata(head);exit(0);default:printf("\t输入错误!!!\n");system("pause");break;}showmenu1();}}else if(c==3)exit(0);else{printf("\t\t\t输入错误!!!\n\n");}}return 0;}