C/C++实现图书信息管理系统

本文实例为大家分享了c/c++实现图书信息管理系统的具体代码，供大家参考，具体内容如下
程序流程图
C/C++实现图书信息管理系统
源代码
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									#include <stdio.h>

									#include <string.h>

									#include <stdlib.h>

									#include <conio.h>

									#include <windows.h>

									#define N 100

									struct type{

									 char ISBN[N];//ISBN编号（一般为13位） 

									 char bookName[N]; //书名 

									 char subject[N];//科目 

									 char editor[N];//主编 

									 float price;//价格 

									 char publish[N];//出版社

									 char date[N];//日期 

									 int num;//数量 

									 struct type *next; 

									}Book;

									typedef struct type * BooksManage;

									void color(short x);//字体颜色 

									int password();//管理员密码

									void AdministratorMenu();//管理员菜单 

									void VisitorMenu();//游客菜单

									void SaveBooksdata(BooksManage head);//将数据保存到文件中

									void AddBooks(BooksManage *head);//添加图书信息

									void ReadBooksdata(BooksManage *head);//将数据从文件中读取 

									void DelBooks_Subject(BooksManage head);//按所属学科删除图书信息

									void DelBooks_ISBN(BooksManage head);//按ISBN删除图书信息 

									void ModifyBooks(BooksManage head);//修改图书信息

									void FindBooks(BooksManage head);//查询图书信息

									void PrintBooks(BooksManage head);//显示所有图书信息 

									void SumBooks(BooksManage head);//求全部图书价值 

									int main()

									{

									 color(10); printf("\t\t\t\t\t* * * * * * * * * * * * * *\n");

									 color(14); printf("\t\t\t\t\t* 题目：图书信息管理系统  *\n");

									 color(11); printf("\t\t\t\t\t* 班级：                  *\n");

									 color(12); printf("\t\t\t\t\t* 组员                    *\n");

									 color(11); printf("\t\t\t\t\t* 姓名  学号              *\n");

									 color(10); printf("\t\t\t\t\t* 张三   100001           *\n");

									 color(11); printf("\t\t\t\t\t* 李四   100002           *\n");

									 color(14); printf("\t\t\t\t\t* 王五   100003           *\n");

									 color(12); printf("\t\t\t\t\t* 日期 ： 2019.03.19      *\n");

									 color(10); printf("\t\t\t\t\t* * * * * * * * * * * * * *\n");

									 system("title 图书信息管理系统");

									 color(10);

									 BooksManage head = NULL;

									 ReadBooksdata(&head);

									 int choice,z,c;

									 printf("\n\n\n");

									 printf("\t\t\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");

									 printf("\t\t\t\t\t\t欢迎光临图书信息管理系统\n");

									 printf("\t\t\t--------------------------------------------------------\n");

									 printf("\t\t\t\t\t\t【1】游客\n");

									 printf("\t\t\t\t\t\t【2】管理员\n");

									 printf("\t\t\t\t\t\t【3】退出系统\n");

									 printf("\t\t\t--------------------------------------------------------\n");

									 while(printf("\t\t\t\t\t\t请选择身份：")&&scanf("%d",&c)!=EOF)

									 {

									  if(c==1)

									  {

									   VisitorMenu();

									   while (printf("\t\t\t\t\t\t请输入选择项(1-3):")&&scanf("%d",&choice)!=EOF)

									      {

									       switch (choice)

									       {

									        case 1:                                                /*查询图书信息*/

									         FindBooks(head);

									         break;

									     case 2:                                                /*显示所有图书信息*/

									                  PrintBooks(head);

									         break; 

									     case 3:                                                /*返回登录界面*/

									      main();

									      break;

									     case 4:

									      exit(0); 

									        default:

									         printf("\t\t\t\t\t输入错误!!!\n");

									         system("pause");

									         break;

									    }

									    VisitorMenu();

									   }

									  }

									  else if(c==2)

									  {

									   z = password();

									   AdministratorMenu();

									   while (printf("\t请输入选择项(1-8):") && z == 1 && scanf("%d",&choice) != EOF)

									      {

									       switch (choice)

									       {

									        case 1:                                                /*录入图书信息*/

									         AddBooks(&head);

									         break;  

									        case 2:                                                /*删除图书信息*/

									         int sign;

									         system("cls");

									         color(10);printf("\t\t\t* * * * * * * * * * * * * * *\n");

									         color(11);printf("\t\t\t*---------------------------*\n");

									         color(12);printf("\t\t\t*  输入选择删除图书的方式   *\n");

									         color(14);printf("\t\t\t*---------------------------*\n");

									         color(11);printf("\t\t\t*【 1】按所属学科删除图书   *\n");

									         color(12);printf("\t\t\t*---------------------------*\n");

									         color(14);printf("\t\t\t*【 2】按图书ISBN号删除图书 *\n");

									         color(11);printf("\t\t\t*---------------------------*\n");

									         color(10);printf("\t\t\t* * * * * * * * * * * * * * *\n");

									         scanf("\t\t\t%d",&sign);

									         if(sign == 1)

									          DelBooks_Subject(head);

									         else if(sign == 2)

									       DelBooks_ISBN(head);

									         break;

									        case 3:                                               

									         ModifyBooks(head);

									          break;

									        case 4:                                                

									         FindBooks(head);

									         break;

									     case 5:                                                

									                  PrintBooks(head);

									         break;

									        case 6:                                                

									                  SumBooks(head);

									         break; 

									        case 7:                                                

									      main();

									      break; 

									     case 8:                                                

									         SaveBooksdata(head);

									      exit(0);

									        default:

									         printf("\t输入错误!!!\n");

									         system("pause");

									         break;

									    }

									    AdministratorMenu();

									   }

									  }

									  else if(c==3)

									   exit(0);

									  else

									  {

									   printf("\t\t\t输入错误!!!\n\n");

									  }

									 }

									 return 0;

									}

									/**管理员密码*/

									int password()

									{

									 int i=0;

									 char user[10]="admin";

									 char Code[10]="admin";

									 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();       /*getch()函数在头文件conio.h中，函数作用为输入的内容不会在屏幕上显示*/

									   if(Getskey[i]=='\r')        /* \b = 退格键（backspace）*/

									    break;     /* \r = 回车键（carrige return）*/

									   else if(Getskey[i]=='\b')

									   {

									    if(i==0)

									     continue;

									    printf("\b");

									    printf(" ");

									    printf("\b");

									    i--;

									   }

									   else

									   {

									    printf("*");

									    i++;

									   }

									  }

									  Getskey[i]='\0';

									  if(strcmp(user, getuser) == 0 && strcmp(Code, Getskey) == 0){

									   printf("\n\n\n\t\t\t密码正确，请稍等");

									   printf(".");

									   Sleep(300);

									   printf(".");

									   Sleep(300);

									   printf(".");

									   Sleep(300);

									   printf(".");

									   Sleep(300);

									   printf(".");

									   Sleep(300);

									   printf(".");

									   Sleep(300);

									   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;

									  }

									 }

									}

									/**管理员菜单*/

									void AdministratorMenu()                                                

									{

									 system("cls");//清屏 

									 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.全部图书的总价值                   *\n");

									    printf("\t*                                                          *\n");

									    printf("\t*                     7.返回登录界面                       *\n");

									    printf("\t*                                                          *\n");

									 printf("\t*                     8.保存数据并退出系统                 *\n"); 

									    printf("\t*                                                          *\n");

									    printf("\t************************************************************\n\n");

									}

									/**游客菜单*/

									void VisitorMenu()                                                 

									{

									 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");

									}

									/*将数据保存到文件中*/

									void SaveBooksdata(BooksManage head)                                    

									{

									 BooksManage p;

									 FILE *fp;

									 fp = fopen("BooksDatabase.txt","w");

									 p = head->next;

									 while(p->next != NULL){

									  fprintf(fp,"%s\t",p->ISBN);

									  fprintf(fp,"%s\t",p->bookName);         

									  fprintf(fp,"%s\t",p->subject);          

									  fprintf(fp,"%s\t",p->editor);

									  fprintf(fp,"%.2f\t",p->price);

									  fprintf(fp,"%s\t",p->publish);

									  fprintf(fp,"%s\t",p->date);

									  fprintf(fp,"%d\n",p->num);

									     p=p->next;                

									 }

									 if(p->next == NULL){

									  fprintf(fp,"%s\t",p->ISBN);

									  fprintf(fp,"%s\t",p->bookName);         

									  fprintf(fp,"%s\t",p->subject);          

									  fprintf(fp,"%s\t",p->editor);

									  fprintf(fp,"%.2f\t",p->price);

									  fprintf(fp,"%s\t",p->publish);

									  fprintf(fp,"%s\t",p->date);

									  fprintf(fp,"%d",p->num);

									 } 

									 fclose(fp);

									 return ;

									}

									/**将数据从文件中读取*/

									void ReadBooksdata(BooksManage *head)                                   

									{

									        int n;

									    BooksManage s, p;

									    FILE *fp;

									    fp=fopen("BooksDatabase.txt","r");

									    if(NULL == fp) { 

									        head = NULL; 

									        return ;

									    } 

									    *head = (BooksManage)calloc(1, sizeof(Book));

									    p = *head; 

									   while (!feof(fp))

									 {

									        s = (BooksManage)calloc(1, sizeof(Book));

									  fscanf(fp,"%s",s->ISBN);              /*为下个结点分配内存空间 */

									  fscanf(fp,"%s",s->bookName);

									  fscanf(fp,"%s",s->subject);

									  fscanf(fp,"%s",s->editor);

									  fscanf(fp,"%f",&s->price);

									  fscanf(fp,"%s",s->publish);

									  fscanf(fp,"%s",s->date);

									  fscanf(fp,"%d",&s->num);

									  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 ; 

									}

									/**字体颜色*/

									void color(short x)

									{

									    if(x>=0 && x<=15)

									     SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), x);

									    else

									     SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), 7);

									}

									/**添加图书信息*/

									void AddBooks(BooksManage *head)                                   

									{

									 int i;

									 BooksManage p, s;

									 system("cls");

									 if(*head == NULL) {

									        *head = (BooksManage)calloc(1,sizeof(Book));

									        p = *head;

									    } else {                            

									        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 = (BooksManage)calloc(1,sizeof(Book));

									     printf("\t\t\t请输入ISBN号：");

									  scanf("%s",s->ISBN);

									  printf("\t--------------------------------------------------------\n");

									  printf("\t\t\t请输入书名：");

									  scanf("%s",s->bookName);

									  printf("\t--------------------------------------------------------\n");

									  printf("\t\t\t请输入书本的所属学科：");

									  scanf("%s",s->subject);

									  printf("\t--------------------------------------------------------\n");

									  printf("\t\t\t请输入主编：");

									  scanf("%s",s->editor);

									  printf("\t--------------------------------------------------------\n");

									  printf("\t\t\t请输入价格：");

									  scanf("%f",&s->price);

									  printf("\t--------------------------------------------------------\n");

									  printf("\t\t\t请输入出版社：");

									  scanf("%s",s->publish);

									  printf("\t--------------------------------------------------------\n");

									  printf("\t\t\t请输入出版日期：");

									  scanf("%s",s->date);

									  printf("\t--------------------------------------------------------\n");

									  printf("\t\t\t请输入数量：");

									  scanf("%d",&s->num);

									  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");

									}

									/*按所属学科删除图书信息*/

									void DelBooks_Subject(BooksManage head)                                     

									{

									 system("cls");

									 int flag=0;

									 char name[100],ch[10];

									 BooksManage 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("请输入要删除的学科名字；");

									 scanf("%s",&name);

									 printf("------------------------------------------------------------------------------------\n");

									 printf("ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n");   

									 printf("------------------------------------------------------------------------------------\n");                                                                                                                                    

									 while(p->next)

									 {

									  t=p;

									  p=p->next;                                               /*转换到下一个结点*/

									     if(strcmp(name,p->subject)==0)

									     {

									      flag=1;

									         printf("%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n",p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);

									         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;

									   free(p);

									   printf("该书已删除！\n");

									  }

									  else

									      return;

									 }

									 else if(flag == 0)

									     printf("没找到那本书！\n");

									 system("pause");

									}

									/*按ISBN删除图书信息*/

									void DelBooks_ISBN(BooksManage head)                                     

									{

									 system("cls");

									 int flag=0;

									 char ch[10];

									 char ISBN[N];

									 BooksManage 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("请输入要删除图书的ISBN号；");

									 scanf("%s",ISBN);

									 printf("------------------------------------------------------------------------------------\n");

									 printf("ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n");   

									 printf("------------------------------------------------------------------------------------\n");                                                                                                                                   

									 while(p->next)

									 {

									  t=p;

									  p=p->next;                                               /*转换到下一个结点*/

									     if(strcmp(ISBN,p->ISBN)==0)

									     {

									      flag=1;

									         printf("%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n",p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);

									         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;

									   free(p); 

									   printf("该书已删除！\n");

									  }

									  else

									      return;

									 }

									 else if(flag == 0)

									     printf("没找到那本书！\n");

									 system("pause");

									}

									/*修改图书信息*/

									void ModifyBooks(BooksManage head)                                     

									{

									 system("cls");

									 int flag=0;

									 char name[100],ch[5];

									 BooksManage 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("ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n");   

									   printf("------------------------------------------------------------------------------------\n");

									      printf("%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n",p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);

									  }

									 }

									 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】ISBN号\n");

									   printf("--------------------------------------------------------------------\n");

									   printf("\t\t【2】书名\n");

									   printf("--------------------------------------------------------------------\n");

									   printf("\t\t【3】所属学科\n");

									   printf("--------------------------------------------------------------------\n");

									   printf("\t\t【4】主编\n");

									   printf("--------------------------------------------------------------------\n");

									   printf("\t\t【5】价格\n");

									   printf("--------------------------------------------------------------------\n");

									   printf("\t\t【6】出版社\n");

									   printf("--------------------------------------------------------------------\n");

									   printf("\t\t【7】出版日期\n");

									   printf("--------------------------------------------------------------------\n");

									   printf("\t\t【8】数量\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ISBN号：");

									           scanf("%s",p->ISBN);

									           break;

									       case 2:

									           printf("\t请输入书名：");

									           scanf("%s",p->bookName);

									           break;

									       case 3:

									           printf("\t请输入所属学科：");

									           scanf("%s",p->subject);

									           break;

									       case 4:

									           printf("\t请输入主编：");

									           scanf("%s",p->editor);

									           break;

									       case 5:

									           printf("\t请输入价格：");

									           scanf("%f",&p->price);

									           break;

									       case 6:

									           printf("\t请输入出版社：");

									           scanf("%s",p->publish);

									           break;

									       case 7:

									           printf("\t请输入出版日期：");

									           scanf("%s",p->date);

									           break;

									       case 8:

									           printf("\t请输入数量：");

									           scanf("%d",&p->num);

									           break;

									   }

									   printf("--------------------------------------------------------------------\n");

									      printf("\t修改成功!!!\n");

									  }

									 }

									 else if(flag == 0)

									     printf("对不起，该书库没有该书\n");

									     system("pause");

									}

									/**显示所有图书信息*/

									void PrintBooks(BooksManage head)                                               

									{

									 BooksManage 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");//提示任意键继续 

									        return ;

									    }

									    p = head->next;

									    printf("\n\n\n");

									    printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");

									    printf("                                  图书列表\n");

									    printf("------------------------------------------------------------------------------------\n");

									 printf("ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n");   

									 printf("------------------------------------------------------------------------------------\n");

									 do

									 {

									     printf("%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n",p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);

									     p = p->next;                           

									 }while(p!=NULL);

									 system("pause");

									}

									/**求全部图书价值*/

									void SumBooks(BooksManage head){

									 float sum = 0;

									 system("cls");

									 BooksManage p;

									 /* 如果表头为空 */

									    if(head == NULL || head->next == NULL) {

									        printf("\t\t\t\t没有图书信息！\n");

									        return;

									    }

									        for(p = head;p != NULL; p = p->next){

									         sum += p->price * p->num;

									  }

									 printf("\n\n\n\n\n\n"); 

									   printf("\t\t\t***********************************\n");

									   color(12);printf("\t\t\t*    全部图书的总价值为：%.2f     *\n",sum);

									   color(10);printf("\t\t\t***********************************\n");

									 system("pause");

									}

									/*查询图书信息*/

									void FindBooks(BooksManage head)                                     

									{

									 system("cls");

									 int choose,flag = 0;

									 BooksManage p;

									 char b[100];

									 char ISBN[N];

									 /* 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ISBN号查找\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("ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n");

									             printf("------------------------------------------------------------------------------------\n");

									         printf("%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n",p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);

									       }

									   }

									   if(flag==0)

									            printf("不存在该信息\n");

									  }

									  else if(choose==2)

									  {

									   printf("输入所查ISBN号：");

									   scanf("%s",ISBN);

									   printf("----------------------------------------------------------------------\n\n");

									   while(p->next)

									   {

									    p=p->next;                         /*转换到下一个结点*/

									    if(strcmp(p->ISBN,ISBN) == 0)         /*判断是否找到并输出*/

									    {

									     flag=1;

									       printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n");

									                 printf("ISBN\t书名\t所属学科\t主编\t价格\t出版单位\t出版时间\t数量\n");

									                printf("------------------------------------------------------------------------------------\n");

									        printf("%s\t%s\t%s\t\t%s\t%.2f\t%s\t\t%s\t%d\n",p->ISBN,p->bookName,p->subject,p->editor,p->price,p->publish,p->date,p->num);

									    }

									   }

									   if(flag == 0)

									           printf("不存在该信息\n");

									  }

									  else

									      return;

									  system("pause");

									 }while(1);

									}