图书馆系统

#include<stdio.h> 
#include<string.h> 
#include<conio.h> 
#include<stdlib.h> 
#include<ctype.h> 
#define STACK_INIT_SIZE 10 
#define OK 1 
#define TRUE 1 
#define ERROR 0
 
/*定义学生类型，用于存放借出的书籍*/ 
struct student { 
int carnum; 
char lendbook[10]; 
}student[1000];
 
 /*定义书的类型*/ 
struct book
{ 
int booknum; 
char bookname[20]; 
float bookprice;
char bookcreat[20]; 
int turefalse; /*用于借书和还书模块判断一本书是否借出的条件*/ 
}book[1000];
 
/*借书卡的数据类型*/ 
struct car
{ 
int carnum; 
char sex[5];
char studentname[20]; 
int studentclass; 
}car[1000];
/*查询图书信息模块*/
/*(1)按书名查找*/
findbook()
{ 
FILE *fp; 
char bookname[10]; 
int i; 
fp=fopen("book.txt","r");
printf("请输入你要查找的书名:\n"); 
scanf("%s",bookname); 
for(i=0;fread(&book[i],sizeof(structbook),1,fp)!=0;i++) 
{ 
  if(strcmp(bookname,book[i].bookname)==0) 
  { 
   if(book[i].turefalse==1) 
   {
printf(" 书号      书名      作者 \n %d      %s    %s \n",book[i].booknum,book[i].bookname,book[i].bookcreat);
printf("此书现在无人借阅\n按任意键返回\n");} 
   else {printf("这本书已经有人借出\n");fclose(fp);return 0;} 
   fclose(fp); 
   return 0; 
  } 
} 
printf("抱歉无此书!\n");
fclose(fp); 
return 0; 
}
/*(2)按作者查找*/
findbook1()
{ 
FILE *fp; 
char bookcreat[10]; 
int i; 
fp=fopen("book.txt","r");
printf("请输入作者名:\n"); 
scanf("%s",bookcreat); 
for(i=0;fread(&book[i],sizeof(structbook),1,fp)!=0;i++) 
{ 
  if(strcmp(bookcreat,book[i].bookcreat)==0) 
  { 
   if(book[i].turefalse==1) 
   { 
    printf(" 书号  书名  作者\n %d    %s    %s\n",book[i].booknum,book[i].bookname,book[i].bookcreat); 
   printf("此书现在无人借阅\n按任意键返回\n");
                                                             }
else {printf("此书已借出!\n");fclose(fp);
return 0;
                                                             }
   fclose(fp); 
   return 0; 
  } 
} 
printf("没有此书籍\n");
fclose(fp); 
return 0; 
}
chabook()/*查找图书主模块 */
{ 
char ch6; 
do 
{ 
printf("！！！欢迎进入图书查询系统！！！\n"); 
printf(" 1: 按书名查找\n"); 
printf(" 2: 按作者查找\n"); 
printf(" 0: 返回\n"); 
printf("请输入0━2:\n"); 
ch6=getch(); 
switch(ch6) 
  { 
   case '1':findbook();getch();break; 
   case '2':findbook1();getch();break; 
   case '0':break; 
   default:printf("无此操作!\n");getch();break; 
  } 
}while(ch6!='0');
return 0; 
}
/*借书与还书模块*/
/*(1).借书模块*/
lendbook() 
{ 
FILE *fp,*fp2; 
int i,n; 
int carnum; 
system("cls");
printf("\t\t*****欢迎进入借书系统*****\n\n");
printf("请输入借书人的:\n卡号:\n"); 
scanf("%d",&carnum); 
fp=fopen("car.txt","r");
for(i=0;fread(&car[i],sizeof(structcar),1,fp)!=0;i++) 
{ 
  if(car[i].carnum==carnum) 
  { 
   n=i; 
   fclose(fp); 
   printf("书名:\n"); 
   scanf("%s",student[n].lendbook); 
   fp=fopen("book.txt","r"); 
   for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++) 
   { 
    if(strcmp(book[i].bookname,student[n].lendbook)==0) 
    { 
     if(book[i].turefalse==0) {printf("对不起，此书有人借出，请借其他书\n");fclose(fp);getch();return0;} 
     else 
     fclose(fp); 
     fp=fopen("record.txt","a+"); 
     student[n].carnum=carnum; 
     fwrite(&student[n],sizeof(struct student),1,fp); 
     fclose(fp); 
     fp=fopen("book.txt","r"); 
     fp2=fopen("bookl.txt","w"); 
     for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++) 
     { 
      if(strcmp(book[i].bookname,student[n].lendbook)==0) 
      { 
       book[i].turefalse=0; 
       fwrite(&book[i],sizeof(struct book),1,fp2); 
       continue; 
      } 
      fwrite(&book[i],sizeof(struct book),1,fp2); 
     } 
     fclose(fp); 
     fclose(fp2); 
     fp=fopen("book.txt","w"); 
     fp2=fopen("bookl.txt","r"); 
     for(i=0;fread(&book[i],sizeof(struct book),1,fp2)!=0;i++) 
     { 
      fwrite(&book[i],sizeof(struct book),1,fp); 
     } 
     fclose(fp); 
     fclose(fp2); 
     fopen("bookl.txt","w"); 
     fclose(fp2); 
     printf("借书完毕，按任意键返回...\n"); 
     getch(); 
     return 0; 
    } 
   } 
   printf("不存在这样的书，任意键返回...\n"); 
   fclose(fp); 
   getch(); 
   return 0; 
  } 
} 
printf("你的卡号不存在，请申请新卡,按任意键返回...\n"); 
fclose(fp); 
getch(); 
return 0;}
/*(2).还书函数*/
huanbook() 
{ 
FILE *fp,*fp2; /*定义两个文件指针，fp2用于修改数据时设立临时文件用，防止数据遭破坏*/ 
int i,n; 
int carnum; 
char lendbook[10]; 
system("cls");
printf("\t\t@@@@欢迎进入还书界面@@@@");
printf("\n请你输入你的\n卡号:\n"); 
scanf("%d",&carnum); 
fp=fopen("car.txt","r");/*读取卡号记录*/ 
for(i=0;fread(&car[i],sizeof(structcar),1,fp)!=0;i++) /*for循环判断卡号是否存在*/ 
{ 
  if(car[i].carnum==carnum) /*卡号存在，进入下一循环*/ 
  { 
   n=i; 
   fclose(fp); 
   printf("请输入你要还的书的名字:\n"); 
   scanf("%s",lendbook); 
   fp=fopen("record.txt","r"); 
   for(i=0;fread(&student[i],sizeof(struct student),1,fp)!=0;i++) /*判断是否借阅了输入的书*/ 
   { 
    if(strcmp(student[i].lendbook,lendbook)==0) /*借阅了该书，进入下一循环，否则出错显示*/ 
    { 
     fclose(fp); 
     fp=fopen("record.txt","r"); 
     fp2=fopen("bookl.txt","w"); 
     for(i=0;fread(&student[i],sizeof(struct student),1,fp)!=0;i++) 
     { 
      if(strcmp(student[i].lendbook,lendbook)==0) 
      { 
       continue; /*删除还掉的书的借书记录*/ 
      } 
      fwrite(&student[i],sizeof(struct student),1,fp2); /*写入原来没还的书的记录*/ 
     } 
     fclose(fp); 
     fclose(fp2); 
     fp=fopen("record.txt","w"); 
     fp2=fopen("bookl.txt","r"); 
     for(i=0;fread(&student[i],sizeof(struct student),1,fp2)!=0;i++) 
      { 
       fwrite(&student[i],sizeof(struct student),1,fp); /*将借书记录信息写回*/ 
      } 
     fclose(fp); 
     fclose(fp2); 
     fopen("bookl.txt","w"); /*清临时文件的记录*/ 
     fclose(fp2); 
     fp=fopen("book.txt","r"); 
     fp2=fopen("bookl.txt","w"); 
     for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++) /*将书的记录写入临时文件，防止因为修改信息破坏以前的记录*/ 
     { 
      if(i==n) 
      { 
       book[i].turefalse=1; 
       fwrite(&book[i],sizeof(struct book),1,fp2); /*将还的书的原来状态设为无人借阅的*/ 
       continue; 
      } 
      fwrite(&book[i],sizeof(struct book),1,fp2); 
     } 
     fclose(fp); 
     fclose(fp2); 
     fp=fopen("book.txt","w"); 
     fp2=fopen("bookl.txt","r"); 
     for(i=0;fread(&book[i],sizeof(struct book),1,fp2)!=0;i++) 
     { 
      fwrite(&book[i],sizeof(struct book),1,fp); /*将临时文件写回*/ 
     } 
     fclose(fp); 
     fclose(fp2); 
     fopen("bookl.txt","w"); /*清临时文件*/
     fclose(fp2); 
     printf("还书完毕，按任意键返回...\n"); 
     getch(); 
     return 1; 
    } 
   } 
   printf("你没有借这样的书，任意键返回...\n"); /*出错提示*/ 
   fclose(fp); 
   getch(); 
   return 0; 
  } 
} 
printf("没这样的卡，和管理员联系,按任意键返回...\n"); /*出错提示*/ 
fclose(fp); 
getch(); 
return 0;}
/*(3).借书统计*/
lendcount() 
{ 
FILE *fp; 
int i,n=0; 
fp=fopen("record.txt","r");
for(i=0;fread(&student[i],sizeof(structstudent),1,fp)!=0;i++) 
{ 
  printf("卡号      借出的书籍     \n"); 
  printf("%d       %s\n",student[i].carnum,student[i].lendbook); 
  n=n+1; 
} 
fclose(fp); 
printf("目前共有%d本书借出\n",n); 
printf("按任意键...\n");
getch();
return n; 
}
/*会员卡管理模块*/
/*(1).增加会员卡*/
addcar() 
{ 
FILE *fp; 
int i=0; 
fp=fopen("car.txt","a+");
printf("卡号:\n");
scanf("%d",&car[i].carnum);
printf("性别:\n");
scanf("%s",car[i].sex);
printf("姓名:\n");
scanf("%s",car[i].studentname);
printf("班级:\n");
scanf("%d",&car[i].studentclass);
fwrite(&car[i],sizeof(structcar),1,fp); 
fclose(fp); 
printf("输入完毕，任意键返回...\n"); 
getch(); 
}
/*(2).删除会员卡*/
delcar() 
{ 
FILE *fp,*fp2; 
int i; 
int carnum; 
char choice; 
fp=fopen("car.txt","r");
fp2=fopen("bookl.txt","w");
printf("要删除的卡号(不存在则不作改动):\n"); 
scanf("%d",&carnum); 
for(i=0;fread(&car[i],sizeof(structcar),1,fp)!=0;i++) 
{ 
  if(car[i].carnum!=carnum) 
  { 
   fwrite(&car[i],sizeof(struct car),1,fp2); 
  } 
} 
fclose(fp); 
fclose(fp2);
printf("确认删除?(Y/N)!\n");
scanf("%s",&choice); 
if(choice=='y'||choice=='Y') 
{ 
  fp=fopen("car.txt","w"); 
  fp2=fopen("bookl.txt","r"); 
  for(i=0;fread(&car[i],sizeof(struct car),1,fp2)!=0;i++) 
  { 
   fwrite(&car[i],sizeof(struct car),1,fp); 
  } 
  fclose(fp); 
  fclose(fp2); 
  fp2=fopen("bookl.txt","w"); 
  fclose(fp2); 
  printf("操作成功!\n按任意键返回...\n");
  getch(); 
  return 0; 
} 
else 
{ 
  printf("操作已取消!\n按任意键返回...\n");
  getch(); 
  return 0; 
} 
}
/*(3).会员卡统计*/
carcount() 
{ 
FILE *fp; 
int i,n=0; 
fp=fopen("car.txt","r");
for(i=0;fread(&car[i],sizeof(structcar),1,fp)!=0;i++) 
{ 
  printf("第%d张卡 \n",i+1); 
  printf("卡号         性别        姓名   班级   \n"); 
printf("  %d   %5s    %10s   %3d\n\n",car[i].carnum,car[i].sex,car[i].studentname,car[i].studentclass);
  n=n+1; 
} 
fclose(fp); 
printf("目前共有%d个会员。\n",n); 
printf("按任意键返回...\n"); 
getch(); 
}
/*图书管理模块*/
/*(1).增加图书信息*/
addbook() 
{ 
FILE *fp; 
int i=0; 
char choice='y'; 
fp=fopen("book.txt","a+");
while(choice=='y'||choice=='Y') 
{ 
  printf("书号:\n");
  scanf("%d",&book[i].booknum); 
  printf("书名:\n"); 
  scanf("%s",book[i].bookname); 
  printf("作者:\n"); 
  scanf("%s",book[i].bookcreat); 
  printf("单价:\n");
  scanf("%f",&book[i].bookprice);
  printf("请你设定书的状态(1在架/0不在):\n");  
  scanf("%d",&book[i].turefalse); 
  fwrite(&book[i],sizeof(struct book),1,fp); 
   printf("是否要输入下本书(y/n)\n");
  scanf("%s",&choice); 
} 
fclose(fp); 
}
/*(2).删除图书信息*/ 
delbook() 
{ 
FILE *fp,*fp2; 
int i; 
char bookname[10],choice; 
fp=fopen("book.txt","r");
fp2=fopen("bookl.txt","w");
printf("书名:\n");
scanf("%s",bookname); 
for(i=0;fread(&book[i],sizeof(structbook),1,fp)!=0;i++) 
{ 
  if(strcmp(bookname,book[i].bookname)!=0) 
  { 
   fwrite(&book[i],sizeof(struct book),1,fp2); 
  } 
} 
fclose(fp); 
fclose(fp2); 
printf("确认删除(y/n)?\n");
scanf("%s",&choice); 
if(choice=='y'||choice=='Y') 
{ 
  fp=fopen("book.txt","w"); 
  fp2=fopen("bookl.txt","r"); 
  for(i=0;fread(&book[i],sizeof(struct book),1,fp2)!=0;i++) 
  { 
   fwrite(&book[i],sizeof(struct book),1,fp); 
  } 
  fclose(fp); 
  fclose(fp2); 
  fp2=fopen("bookl.txt","w"); 
  fclose(fp2); 
  printf("按任意键返回...\n"); 
  getch(); 
  return 0; 
} 
else 
{ 
  printf("按任意键返回...\n"); 
  getch(); 
  return 0; 
} 
}
/*(3)修改图书*/
changebook() 
{ 
FILE *fp,*fp2; 
char bookname[10],choice; 
int i; 
fp=fopen("book.txt","r");
fp2=fopen("bookl.txt","w");
printf("书名:\n");
scanf("%s",bookname); 
for(i=0;fread(&book[i],sizeof(structbook),1,fp)!=0;i++) 
{ 
  if(strcmp(book[i].bookname,bookname)==0) 
  { 
   printf("你所要修改的书的资料如下，请选择你要修改的内容:\n"); 
   printf("序号      书名      作者 \n"); 
    printf("%d   %s %s\n",book[i].booknum,book[i].bookname,book[i].bookcreat); printf("1:修改书号:\n"); 
   printf("2: 修改书名:\n"); 
   printf("3: 修改作者:\n"); 
printf("4: 修改单价:");
   printf("请输入1━3:"); 
    choice=getch(); 
   switch(choice) 
   { 
    case '1': 
    { 
     printf("新书号:\n"); 
     scanf("%d",&book[i].booknum); 
     fwrite(&book[i],sizeof(struct book),1,fp2); 
    }break; 
    case '2': 
    { 
     printf("新书名:\n"); 
     scanf("%s",book[i].bookname); 
     fwrite(&book[i],sizeof(struct book),1,fp2); 
    }break; 
    case '3': 
    { 
     printf("新的作者:\n"); 
     scanf("%s",book[i].bookcreat); 
     fwrite(&book[i],sizeof(struct book),1,fp2); 
    }break; 
case '4':
{
printf("新的单价:");
scanf("%f",book[i].bookprice);
       fwrite(&book[i],sizeof(struct book),1,fp2);          }
    default:printf("没有这样的操作!");break; 
   } 
   continue; 
  } 
  fwrite(&book[i],sizeof(struct book),1,fp2); 
} 
fclose(fp); 
fclose(fp2); 
fp=fopen("book.txt","w");
fp2=fopen("bookl.txt","r");
for(i=0;fread(&book[i],sizeof(structbook),1,fp2)!=0;i++) 
{ 
  fwrite(&book[i],sizeof(struct book),1,fp); 
} 
fclose(fp); 
fp2=fopen("bookl.txt","w");
fclose(fp2); 
printf("按任意键返回...\n"); 
getchar(); 
return 0; 
} 
/*(4).图书统计*/
bookcount() 
{ 
FILE *fp; 
int i,n=0; 
fp=fopen("book.txt","r");
for(i=0;fread(&book[i],sizeof(structbook),1,fp)!=0;i++) 
{ 
 if(book[i].booknum!=0&&strlen(book[i].bookname)!=0&&strlen(book[i].bookcreat)!=0)
  { 
   printf("第%d本书\n序号           书名               作者       单价    状态 \n",i+1); 
   printf(" %d       %10s    ",book[i].booknum,book[i].bookname); 
printf("%15s      %4.2f   %d(1在/0不在)\n",book[i].bookcreat,book[i].bookprice,book[i].turefalse);n=n+1;
  } 
} 
fclose(fp); 
printf("目前共有%d本书.\n",n); 
printf("按任意键返回...\n"); 
}
/*结束界面函数*/
end()
{  system("cls");
printf("\t\t********************************\n");
printf("\t\t********************************\n");
printf("\t\t**** 谢谢使用本系统 , 再见! ****\n");
printf("\t\t********************************\n");
printf("\t\t********************************\n");            
}
/*主函数*/
main() 
{ 
char ch2,ch3,ch5; 
do
{ system("cls");
  printf("\t\t********************************\n");   
  printf("\t\t********************************\n");
  printf("\t\t***** 欢迎进入图书管理系统 *****\n");
  printf("\t\t********************************\n");
  printf("\t\t********************************\n");
  printf(" 请选择:\n"); 
  printf(" 1:查阅图书 \n"); 
  printf(" 2:借阅图书 \n"); 
  printf(" 3:管理系统 \n"); 
  printf(" 4:还书 \n"); 
  printf(" 0:退出 \n"); 
  printf("请输入0━4:\n"); 
  ch2=getch(); 
  switch(ch2) 
  { 
   case '1':chabook();break; 
   case '2':lendbook();;break; 
   case '3':{ 
      do 
      { 
       system("cls");
       printf("\t\t*******欢迎进入管理系统*******\n"); 
       printf(" 1:增加图书 \n"); 
       printf(" 2:删除图书 \n"); 
       printf(" 3:修改图书 \n"); 
       printf(" 4:图书统计 \n"); 
   
       printf(" 5:会员管理系统 \n"); 
       printf(" 0:返回 \n"); 
       printf("请输入0━5:\n"); 
        ch3=getch(); 
       switch(ch3) 
       { 
        case '1':addbook(); 
        break; 
        case '2':delbook();break; 
        case '3':changebook();break; 
        case '4':bookcount();getch();break; 
       
        case '5':{
            do 
            { 
                                                                   system("cls");
            printf("\t\t····欢迎进入学生管理系统····\n"); 
            printf(" 1: 申请新卡\n"); 
            printf(" 2: 删除卡号\n"); 
            printf(" 3: 借书统计\n"); 
            printf(" 4: 卡号统计\n"); 
            printf(" 0: 返回\n"); 
            printf("请输入0━4:\n"); 
             ch5=getch(); 
            switch(ch5) 
             { 
              case '1':addcar();break; 
              case '2':delcar();break; 
              case '3':lendcount();break; 
              case '4':carcount();break; 
              case '0':break; 
              default:printf("无此操作!\n");getch();break;
             } 
            }while(ch5!='0');}break; 
            case '0':break; 
            default:printf("无此操作!\n");getch();break;
           } 
       }                                                          while(ch3!='0');}break; 
       case '4':huanbook();break; 
       case '0':break; 
       default:printf("无此操作!\n");getch();break; 
  } 
}while(ch2!='0'); 
}