课程设计--图书信息管理系统（C语言）

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");}else    return;}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");}else    return;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;}