图书管理系统-简易C语言版（课设）

/* Note:Your choice is C IDE */
#include 
#include 
#include 
#include 
#include 
#define OK 1 
#define TRUE 1 
#define FALSE 0 
#define ERROR 0

struct student /*定义学生用户类型*/
{ 
int cardnum; 

char studentname[15]; 

int studentage; 

char studentsex[2]; 

char lendbook[10]; 

}student[1000];

struct teacher /*定义教师用户类型*/ 
{ 

int teachernum; 

char teachername[15]; 

int teacherage; 

char teachersex[2]; 

}teacher[50];

 

struct book /*定义书的类型*/ 
{ 

int booknum; 

char bookname[10]; 

char bookcreate[10]; 

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];

 

struct card /*借书卡的数据类型*/ 
{ 

int cardnum; 

char studentname[10]; 

int studentclass; 

}card[100];

 

 

huanbook() /*还书函数*/ 
{ 

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 cardnum; 

char lendbook[10]; 

printf("请你输入你的卡号:\n"); 

scanf("%d",&cardnum); 

fp=fopen("card.txt","r"); /*读取卡号记录*/ 

for(i=0;fread(&card[i],sizeof(struct card),1,fp)!=0;i++) /*for循环判断卡号是否存在*/ 
{ 

   if(card[i].cardnum==cardnum) /*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("系统没这样的卡，和管理员联系,按任意键返回\n"); /*出错提示*/ 

fclose(fp); 

getch(); 

}

findbook()
{ 
FILE *fp; 

char bookname[10]; 

int ture,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(struct book),1,fp)!=0;i++) 
{ 
   if(strcmp(bookname,book[i].bookname)==0) 
   { 
    if(book[i].turefalse==1) 
    { 
     printf("这本书的详细资料是：序号：〈%d〉 书名：《%s》 作者：(%s)此书现在无人借阅\n按任意键返回\n",book[i].booknum,book[i].bookname,book[i].bookcreate); 
    } 
    else 
    {
    	printf("这本书已经有人借出\n");
    	fclose(fp);
    	return 0;
    } 

    fclose(fp); 

    return FALSE; 
   } 
} 

printf("没有你要查询的书籍!\n"); 

fclose(fp); 

return FALSE; 

}

findbook1()
{ 
FILE *fp; 

char bookcreate[10]; 

int ture,i; 

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

printf("请输入你要查找的作者名\n"); 

scanf("%s",bookcreate); 

for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++) 
{ 
   if(strcmp(bookcreate,book[i].bookcreate)==0) 
   { 
    if(book[i].turefalse==1) 
    { 
     printf("这本书的详细资料是：序号：〈%d〉 书名：《%s》 作者：(%s) 此书现在无人借阅\n按任意键返回\n",book[i].booknum,book[i].bookname,book[i].bookcreate); 
    } 
    else 
    {
    	printf("这本书已经有人借出\n");
    	fclose(fp);
    	return 0;
    } 

    fclose(fp); 
    
    return FALSE; 
   } 
} 
     printf("没有你要查询的书籍\n"); 
     fclose(fp); 
     return FALSE; 
}

lendcount() 
{ 
   FILE *fp; 

   int i,n=0; 

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

   for(i=0;fread(&student[i],sizeof(struct student),1,fp)!=0;i++) 
   { 

      printf("卡号：%d 借出的书籍：%s \n",student[i].cardnum,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; 

}

searchbook() 
{ 
   char ch5; 

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,其他输入非法！\n"); 

scanf("%s",&ch5); 

switch(ch5) 

   { 

    case '1':findbook();getch();break; 

    case '2':findbook1();getch();break; 

    case '0':break; 

    default:printf("无此操作\n");getch();break; 

   } 

}while(ch5!='0');

 return FALSE; 

}

lendbook() 
{ 
FILE *fp,*fp2; 

int i,n; 

int cardnum; 

printf("请你输入你的卡号:\n"); 

scanf("%d",&cardnum); 

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

for(i=0;fread(&card[i],sizeof(struct card),1,fp)!=0;i++) 
{ 
  if(card[i].cardnum==cardnum) 
   { 

    n=i; 

    fclose(fp); 

    printf("请输入你要借阅的书的名字:\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();
      	return;
      } 

      else 

      fclose(fp); 

      fp=fopen("record.txt","a+"); 

      student[n].cardnum=cardnum; 

      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; 

     } 
    } 
    printf("不存在这样的书，任意键返回\n"); 

    fclose(fp); 

    getch(); 

    return; 

   } 

} 

printf("你的卡号不存在，请申请新卡,按任意键返回\n"); 

fclose(fp); 

getch(); 

}

cardcount() 
{ 

FILE *fp; 

int i,n=0; 

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

for(i=0;fread(&card[i],sizeof(struct card),1,fp)!=0;i++) 
{ 

   printf("第%d张卡<卡号：%d 姓名：%s 班级：%d>\n",i+1,card[i].cardnum,card[i].studentname,card[i].studentclass); 

   n=n+1; 
} 
fclose(fp); 

printf("目前共有%d本书\n",n); 

printf("按任意键退出\n"); 

getch(); 

}

delcard() 
{ 
FILE *fp,*fp2; 

int i; 

int cardnum; 

char choice; 

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

fp2=fopen("bookl.txt","w"); 

printf("请输入你要删除的卡号\n"); 

printf("如果你输入的卡号存在，系统自动删除该信息！如果不存在，系统不做任何改动\n"); 

scanf("%d",&cardnum); 

for(i=0;fread(&card[i],sizeof(struct card),1,fp)!=0;i++) 
{ 
   if(card[i].cardnum!=cardnum) 
   { 
    fwrite(&card[i],sizeof(struct card),1,fp2); 
   } 
} 
fclose(fp); 

fclose(fp2); 

printf("是否真的要删除该卡？删除后该书籍的所有信息将无法恢复(Y/N)\n"); 

scanf("%s",&choice); 

if(choice=='y'||choice=='Y') 
{ 

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

   fp2=fopen("bookl.txt","r"); 

   for(i=0;fread(&card[i],sizeof(struct card),1,fp2)!=0;i++) 
   { 
    fwrite(&card[i],sizeof(struct card),1,fp); 
   } 

   fclose(fp); 

   fclose(fp2); 

   fp2=fopen("bookl.txt","w"); 

   fclose(fp2); 

   printf("按任意键返回\n"); 

   getch(); 

   return; 
} 

else 
{ 

   printf("按任意键返回\n"); 

   getch(); 

   return; 
} 

}

addcard() 
{ 

FILE *fp; 

int i=0; 

fp=fopen("card.txt","a+"); 

printf("请你输入卡号\n"); 

scanf("%d",&card[i].cardnum); 

printf("请你输入学生姓名\n"); 

scanf("%s",card[i].studentname); 

printf("请你输入班级\n"); 

scanf("%d",&card[i].studentclass); 

fwrite(&card[i],sizeof(struct card),1,fp); 

fclose(fp); 

printf("输入完毕，任意键返回\n"); 

getch(); 

}

changeteacher() 
{ 

FILE *fp,*fp2; 

char teachername[10],choice;

int i; 

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

fp2=fopen("bookl.txt","w"); 

printf("请你输入要修改的教师用户的名字\n"); 

scanf("%s",teachername); 

for(i=0;fread(&teacher[i],sizeof(struct teacher),1,fp)!=0;i++) 

{ 

   if(strcmp(teacher[i].teachername,teachername)==0) 

   { 

    printf("你所要修改的教师用户的资料如下，请选择你要修改的内容\n"); 

    printf("<教师用户号:%d教师用户名：%s 年龄：%d 性别：%s >\n",teacher[i].teachernum,teacher[i].teachername,teacher[i].teacherage,teacher[i].teachersex); 

    printf("1：修改教师用户号\n"); 

    printf("2：修改教师用户名\n"); 

    printf("3：修改教师用户年龄\n"); 

    printf("4：修改教师用户性别\n");
   
    printf("请输入1-4:"); 

    scanf("%s",&choice); 

    switch(choice) 

    { 

     case '1': 

     { 

     printf("请输入新的教师用户号\n"); 

     scanf("%d",&teacher[i].teachernum); 

     fwrite(&teacher[i],sizeof(struct teacher),1,fp2); 

     }break; 

     case '2': 

     { 

     printf("请输入新的教师用户姓名\n"); 

     scanf("%s",teacher[i].teachername); 

     fwrite(&teacher[i],sizeof(struct teacher),1,fp2); 

     }break; 

     case '3': 

     { 

     printf("请输入新的教师用户年龄\n"); 

     scanf("%d",&teacher[i].teacherage); 

     fwrite(&teacher[i],sizeof(struct teacher),1,fp2); 

     }break; 
     
     case '4': 

     { 

     printf("请输入新的教师用户性别\n"); 

     scanf("%d",&teacher[i].teachersex); 

     fwrite(&teacher[i],sizeof(struct teacher),1,fp2); 

     }break; 

     default:printf("没有这样的操作");break; 

    } 

    continue; 

   } 

   fwrite(&teacher[i],sizeof(struct teacher),1,fp2); 

} 

fclose(fp); 

fclose(fp2); 

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

fp2=fopen("bookl.txt","r"); 

for(i=0;fread(&teacher[i],sizeof(struct teacher),1,fp2)!=0;i++) 

   { 

    fwrite(&teacher[i],sizeof(struct teacher),1,fp); 

   } 

fclose(fp); 

fclose(fp2); 

fp2=fopen("bookl.txt","w"); 

fclose(fp2); 

printf("按任意键返回\n"); 

getchar(); 

return; 

}

delteacher() 

{ 

FILE *fp,*fp2; 

int i; 

char teachername[10],choice; 

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

fp2=fopen("bookl.txt","w"); 

printf("请输入你要删除的教师用户名\n"); 

printf("如果你输入的教师用户存在，系统自动删除该信息！如果不存在，系统不做任何改动\n"); 

scanf("%s",teachername); 

for(i=0;fread(&teacher[i],sizeof(struct teacher),1,fp)!=0;i++) 

{ 

   if(strcmp(teachername,teacher[i].teachername)!=0) 

   { 

    fwrite(&teacher[i],sizeof(struct teacher),1,fp2); 

   } 

} 

fclose(fp); 

fclose(fp2); 

printf("是否真的要删除该教师用户信息？删除后的所有信息将无法恢复(Y/N)\n"); 

scanf("%s",&choice); 

if(choice=='y'||choice=='Y') 

{ 

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

   fp2=fopen("bookl.txt","r"); 

   for(i=0;fread(&teacher[i],sizeof(struct teacher),1,fp2)!=0;i++) 

   { 

    fwrite(&teacher[i],sizeof(struct teacher),1,fp); 

   } 

   fclose(fp); 

   fclose(fp2); 

   fp2=fopen("bookl.txt","w"); 

   fclose(fp2); 

   printf("按任意键返回\n"); 

   getch(); 

   return TRUE; 

} 
else 
{ 
printf("按任意键返回\n"); 

getch(); 

return FALSE; 
} 
}

teachercount() 
{ 

FILE *fp; 

int i,n=0; 

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

for(i=0;fread(&teacher[i],sizeof(struct teacher),1,fp)!=0;i++) 
{ 
   printf("第%d个教师用户的信息如下：\n<教师用户号：%d 教师用户名：%s 年龄：%d 性别：%s >\n",n+1,teacher[i].teachernum,teacher[i].teachername,teacher[i].teacherage,teacher[i].teachersex); 

   n++; 
} 
fclose(fp); 

printf("目前共有%d个教师用户\n",n); 

printf("按任意键返回\n"); 

}

addteacher() 
{ 
FILE *fp; 

char choice='y'; 

int i=1; 

fp=fopen("teacher.txt","a+"); 

while(choice=='y'||choice=='Y') 

{ 

   printf("请你输入教师用户号码\n"); 

   scanf("%d",&teacher[i].teachernum); 

   printf("请你输入教师用户名\n"); 

   scanf("%s",teacher[i].teachername); 

   printf("请输入教师用户年龄\n"); 

   scanf("%d",&teacher[i].teacherage); 

   printf("请你输入教师用户性别\n"); 

   scanf("%s",teacher[i].teachersex); 

   printf("是否要输入下个教师用户信息？\n"); 

   scanf("%s",&choice); 
} 
printf("按任意键返回\n"); 

fclose(fp); 
}

addbook() 
{ 
FILE *fp; 

int i=0; 

char choice='y'; 

fp=fopen("book.txt","a+"); 

while(choice=='y'||choice=='Y') 

{ 

   printf("请你输入第%d本书的序号\n",i+1); 

   scanf("%d",&book[i].booknum); 

   printf("请你输入书名\n"); 

   scanf("%s",book[i].bookname); 

   printf("请你输入书的作者\n"); 

   scanf("%s",book[i].bookcreate); 

   printf("请设为1或0，1代表书还没人借，0表示书已经借出\n"); 

   printf("请你设定书的状态\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); 
}

bookcount() 
{ 
FILE *fp; 

int i,n=0; 

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

for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++) 
{ 
   if(book[i].booknum!=0&&strlen(book[i].bookname)!=0&&strlen(book[i].bookcreate)!=0) 
   { 
    printf("第%d本书<序号：%d 书名：%s 作者：%s 状态：%d>\n",i+1,book[i].booknum,book[i].bookname,book[i].bookcreate,book[i].turefalse); 

    n=n+1; 
   } 
} 

fclose(fp); 

printf("目前共有%d本书\n",n); 

printf("按任意键\n"); 

}

delbook() 

{ 

FILE *fp,*fp2; 

int i; 

char bookname[10],choice; 

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

fp2=fopen("bookl.txt","w"); 

printf("请输入你要删除的书名\n"); 

printf("如果你输入的书名存在，系统自动删除该信息！如果不存在，系统不做任何改动\n"); 

scanf("%s",bookname); 

for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++) 
{ 
   if(strcmp(bookname,book[i].bookname)!=0) 
   { 
    fwrite(&book[i],sizeof(struct book),1,fp2); 
   } 
} 
fclose(fp); 

fclose(fp2); 

printf("是否真的要删除该书籍？删除后该书籍的所有信息将无法恢复(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; 
} 
else 
{ 
   printf("按任意键返回\n"); 

   getch(); 

   return; 
} 
}

changebook() 
{ 
FILE *fp,*fp2; 

char bookname[10],choice; 

int i; 

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

fp2=fopen("bookl.txt","w"); 

printf("请你输入要修改的书籍的书\n"); 

scanf("%s",bookname); 

for(i=0;fread(&book[i],sizeof(struct book),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：〈%d〉 书名：《%s》 作者：(%s) \n",book[i].booknum,book[i].bookname,book[i].bookcreate); 

    printf("1：修改书的序号\n"); 

    printf("2：修改书名\n"); 

    printf("3：修改作者\n"); 

    printf("请输入1-3:"); 

    scanf("%s",&choice); 

    switch(choice) 
    { 
     case '1': 
     { 
      printf("请输入新的序号\n"); 

      scanf("%d",&book[i].booknum); 

      fwrite(&book[i],sizeof(struct book),1,fp2); 

     }break;
     
     case '2': 
     { 

      printf("请输入新的书名\n"); 

      scanf("%s",book[i].bookname); 

      fwrite(&book[i],sizeof(struct book),1,fp2); 

     }break; 

     case '3': 
     { 
      printf("请输入新的作者\n"); 

      scanf("%s",book[i].bookcreate); 

      fwrite(&book[i],sizeof(struct book),1,fp2); 

     }break;
     
     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(struct book),1,fp2)!=0;i++) 
{ 
   fwrite(&book[i],sizeof(struct book),1,fp); 
} 
fclose(fp2); 

fp2=fopen("bookl.txt","w"); 

fclose(fp2); 

printf("按任意键返回\n"); 

getchar(); 

return; 

} 

changecard() 
{ 

FILE *fp,*fp2; 

char studentname[10],choice;

int i; 

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

fp2=fopen("bookl.txt","w"); 

printf("请你输入要修改的学生用户的名字\n"); 

scanf("%s",studentname); 

for(i=0;fread(&student[i],sizeof(struct student),1,fp)!=0;i++) 

{ 

   if(strcmp(student[i].studentname,studentname)==0) 

   { 

    printf("你所要修改的学生用户的资料如下，请选择你要修改的内容\n"); 

    printf("<学生用户卡号:%d 学生用户名：%s 年龄：%d 性别：%s >\n",student[i].cardnum,student[i].studentname,student[i].studentage,student[i].studentsex); 

    printf("1：修改学生用户卡号\n"); 

    printf("2：修改学生用户名\n"); 

    printf("3：修改学生用户年龄\n");
    
    printf("4：修改学生用户性别\n");
   
    printf("请输入1--4:"); 

    scanf("%s",&choice); 

    switch(choice) 

    { 

     case '1': 
     { 

     printf("请输入新的学生用户卡号\n"); 

     scanf("%d",&student[i].cardnum); 

     fwrite(&student[i],sizeof(struct student),1,fp2); 

     }break; 

     case '2': 

     { 

     printf("请输入新的学生用户姓名\n"); 

     scanf("%s",student[i].studentname); 

     fwrite(&student[i],sizeof(struct student),1,fp2); 

     }break; 

     case '3': 

     { 

     printf("请输入新的学生用户年龄\n"); 

     scanf("%d",&student[i].studentage); 

     fwrite(&student[i],sizeof(struct student),1,fp2); 

     }break; 
     
     case '4': 
     { 

     printf("请输入新的学生用户性别\n"); 

     scanf("%d",&student[i].studentsex); 

     fwrite(&student[i],sizeof(struct student),1,fp2); 

     }break; 

     default:printf("没有这样的操作");break; 

    } 

    continue; 

   } 

   fwrite(&student[i],sizeof(struct student),1,fp2); 

} 

fclose(fp); 

fclose(fp2); 

fp=fopen("card.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); 

   } 

fclose(fp); 

fclose(fp2); 

fp2=fopen("bookl.txt","w"); 

fclose(fp2); 

printf("按任意键返回\n"); 

getchar(); 

return; 

}

main() 

{ 

char ch1,ch2,ch3,ch4,ch5; 

do

{   

   printf("\t\t请你选择操作类型:\n"); 

   printf(" 1：<查阅图书>\n"); 

   printf(" 2：<借阅图书>\n"); 

   printf(" 3：<管理系统(管理员)>\n"); 

   printf(" 4：<还书>\n"); 

   printf(" 0：<退出>\n"); 

   printf("请输入0--4\n"); 

   scanf("%s",&ch1); 

   switch(ch1) 

   { 

    case '1':searchbook();break; 

    case '2':lendbook();;break; 

    case '3':{ 

       do 

       { 

        printf("---------------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：<修改图书资料>\n"); 

        printf(" 4：<书籍统计>\n"); 

        printf(" 5：<教师用户管理系统>\n"); 

        printf(" 6：<学生用户管理系统>\n"); 

        printf(" 0：<返回>\n"); 

        printf("请输入0--6,其他输入非法！\n"); 

        scanf("%s",&ch2); 

        switch(ch2) 

        { 

         case '1':addbook();break; 

         case '2':delbook();break; 

         case '3':changebook();break; 

         case '4':bookcount();getch();break; 

         case '5':{
         	do 
         { 

          printf("---------------欢迎进入教师用户管理系统！--------------\n"); 

          printf(" 1：<增加教师用户>\n"); 

          printf(" 2：<删除教师用户>\n"); 

          printf(" 3：<修改教师用户资料>\n"); 

          printf(" 4：<教师用户统计>\n"); 

          printf(" 0：<返回>\n"); 

          printf("请输入0--4,其他输入非法！\n"); 

          scanf("%s",&ch3); 

          switch(ch3) 
          {      

           case '1':addteacher();getch();break; 

           case '2':delteacher();break; 

           case '3':changeteacher();break; 

           case '4':teachercount();getch();break; 

           case '0':break; 

           default:printf("无此操作\n");getch();break; 
          } 

         }while(ch3!='0');
         }break; 

         case '6':{

            do 

            { 

            printf("---------------欢迎进入学生用户管理系统！--------------\n"); 

            printf(" 1：<申请增添新卡>\n"); 

            printf(" 2：<删除卡号>\n"); 

            printf(" 3：<借书统计>\n"); 

            printf(" 4：<卡号统计>\n"); 
            
            printf(" 5：<修改卡号>\n");

            printf(" 0：<返回>\n"); 

            printf("请输入0--5,其他输入非法！\n"); 

            scanf("%s",&ch4); 

            switch(ch4) 

             { 

              case '1':addcard();break; 

              case '2':delcard();break; 

              case '3':lendcount();break; 

              case '4':cardcount();break; 
              
              case '5':changecard();break;

              case '0':break; 

              default:printf("无此操作\n");getch();break; 

             } 

            }while(ch4!='0');
            }break; 

            case '0':break; 

            default:printf("无此操作\n");getch();break; 

           } 

        }while(ch2!='0');}break; 

        case '4':huanbook();break; 

        case '0':break; 

        default:printf("无此操作\n");getch();break; 

   } 

}while(ch1!='0'); 

}