#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 FALSE 0 
#define ERROR 0 

struct student /*定義學(xué)生類型，用于存放借出的書籍*/ 
{ 
int carnum; 
char lendbook[10]; 
}student[1000]; 

struct employ /*定義職工類型*/ 
{ 
int employnum; 
char employname[15]; 
int employage; 
char employsex[2]; 
char employleve[10]; 
long int employtage; 
}employ[50]; 

struct book /*定義書的類型*/ 
{ 
int booknum; 
char bookname[10]; 
char bookcreat[10]; 
int turefalse; /*用于借書和還書模塊判斷一本書是否借出的條件*/ 
}book[1000]; 

struct car /*借書卡的數(shù)據(jù)類型*/ 
{ 
int carnum; 
char studentname[10]; 
int studentclass; 
}car[100]; 


huanbook() /*還書函數(shù)*/ 
{ 
FILE *fp,*fp2; /*定義兩個文件指針，fp2用于修改數(shù)據(jù)時設(shè)立臨時文件用，防止數(shù)據(jù)遭破壞*/ 
int i,n; 
int carnum; 
char lendbook[10]; 
printf("請你輸入你的卡號\n"); 
scanf("%d",&carnum); 
fp=fopen("car.txt","r"); /*讀取卡號記錄*/ 
for(i=0;fread(&car[i],sizeof(struct car),1,fp)!=0;i++) /*for循環(huán)判斷卡號是否存在*/ 
{ 
if(car[i].carnum==carnum) /*卡號存在，進(jìn)入下一循環(huán)*/ 
{ 
n=i; 
fclose(fp); 
printf("請輸入你要還的書的名字\n"); 
scanf("%s",lendbook); 
fp=fopen("record.txt","r"); 
for(i=0;fread(&student[i],sizeof(struct student),1,fp)!=0;i++) /*判斷是否借閱了輸入的書*/ 
{ 
if(strcmp(student[i].lendbook,lendbook)==0) /*借閱了該書，進(jìn)入下一循環(huán)，否則出錯顯示*/ 
{ 
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; /*刪除還掉的書的借書記錄*/ 
} 
fwrite(&student[i],sizeof(struct student),1,fp2); /*寫入原來沒還的書的記錄*/ 
} 
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); /*將借書記錄信息寫回*/ 
} 
fclose(fp); 
fclose(fp2); 
fopen("bookl.txt","w"); /*清臨時文件的記錄*/ 
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++) /*將書的記錄寫入臨時文件，防止因為修改信息破壞以前的記錄*/ 
{ 
if(i==n) 
{ 
book[i].turefalse=1; 
fwrite(&book[i],sizeof(struct book),1,fp2); /*將還的書的原來狀態(tài)設(shè)為無人借閱的*/ 
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); /*將臨時文件寫回*/ 
} 
fclose(fp); 
fclose(fp2); 
fopen("bookl.txt","w"); /*清臨時文件*/ 
fclose(fp2); 
printf("還書完畢，按任意鍵返回\n"); 
getch(); 
return 1; 
} 
} 
printf("你沒有借這樣的書，任意鍵返回\n"); /*出錯提示*/ 
fclose(fp); 
getch(); 
return 0; 
} 
} 
printf("系統(tǒng)沒這樣的卡，和管理員聯(lián)系,按任意鍵返回\n"); /*出錯提示*/ 
fclose(fp); 
getch(); 
} 


findbook() 
{ 
FILE *fp; 
char bookname[10]; 
int ture,i; 
fp=fopen("book.txt","r"); 
printf("請輸入你要查找的書名\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("這本書的詳細(xì)資料是：%d %s %s 此書現(xiàn)在無人借閱\n按任意鍵返回\n",book[i].booknum,book[i].bookname,book[i].bookcreat); 
} 
else {printf("這本書已經(jīng)有人借出\n");fclose(fp);return 0;} 
fclose(fp); 
return FALSE; 
} 
} 
printf("沒有你要查詢的書籍\n"); 
fclose(fp); 
return FALSE; 
} 


findbook1() 
{ 
FILE *fp; 
char bookcreat[10]; 
int ture,i; 
fp=fopen("book.txt","r"); 
printf("請輸入你要查找的作者名\n"); 
scanf("%s",bookcreat); 
for(i=0;fread(&book[i],sizeof(struct book),1,fp)!=0;i++) 
{ 
if(strcmp(bookcreat,book[i].bookcreat)==0) 
{ 
if(book[i].turefalse==1) 
{ 
printf("這本書的詳細(xì)資料是：%d %s %s 此書現(xiàn)在無人借閱\n按任意鍵返回\n",book[i].booknum,book[i].bookname,book[i].bookcreat); 
} 
else {printf("這本書已經(jīng)有人借出\n");fclose(fp);return 0;} 
fclose(fp); 
return FALSE; 
} 
} 
printf("沒有你要查詢的書籍\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("卡號：%d 借出的書籍：%s \n",student[i].carnum,student[i].lendbook); 
n=n+1; 
} 
fclose(fp); 
printf("目前共有%d本書借出\n",n); 
printf("按任意鍵\n"); 
getch(); 
return n; 
} 



chabook() 
{ 
char ch5; 
do 
{ 
printf("---------------歡迎進(jìn)入圖書查詢系統(tǒng)！--------------\n"); 
printf(" 1：<按書名查找>\n"); 
printf(" 2：<按作者查找>\n"); 
printf(" 0：<返回>\n"); 
printf("請輸入0--2,其他輸入非法！\n"); 
scanf("%s",&ch5); 
switch(ch5) 
{ 
case '1':findbook();getch();break; 
case '2':findbook1();getch();break; 
case '0':break; 
default:printf("無此操作\n");getch();break; 
} 
}while(ch5!='0'); 
return FALSE; 
} 


lendbook() 
{ 
FILE *fp,*fp2; 
int i,n; 
int carnum; 
printf("請你輸入你的卡號\n"); 
scanf("%d",&carnum); 
fp=fopen("car.txt","r"); 
for(i=0;fread(&car[i],sizeof(struct car),1,fp)!=0;i++) 
{ 
if(car[i].carnum==carnum) 
{ 
n=i; 
fclose(fp); 
printf("請輸入你要借閱的書的名字\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("對不起，此書有人借出，請借其他書\n");fclose(fp);getch();return;} 
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("借書完畢，按任意鍵返回\n"); 
getch(); 
return; 
} 
} 
printf("不存在這樣的書，任意鍵返回\n"); 
fclose(fp); 
getch(); 
return; 
} 
} 
printf("你的卡號不存在，請申請新卡,按任意鍵返回\n"); 
fclose(fp); 
getch(); 
} 


carcount() 
{ 
FILE *fp; 
int i,n=0; 
fp=fopen("car.txt","r"); 
for(i=0;fread(&car[i],sizeof(struct car),1,fp)!=0;i++) 
{ 
printf("第%d張卡<卡號：%d 姓名：%s 班級：%d>\n",i+1,car[i].carnum,car[i].studentname,car[i].studentclass); 
n=n+1; 
} 
fclose(fp); 
printf("目前共有%d本書\n",n); 
printf("按任意鍵\n"); 
getch(); 
} 


delcar() 
{ 
FILE *fp,*fp2; 
int i; 
int carnum; 
char choice; 
fp=fopen("car.txt","r"); 
fp2=fopen("bookl.txt","w"); 
printf("請輸入你要刪除的卡號\n"); 
printf("如果你輸入的卡號存在，系統(tǒng)自動刪除該信息！如果不存在，系統(tǒng)不做任何改動\n"); 
scanf("%d",&carnum); 
for(i=0;fread(&car[i],sizeof(struct car),1,fp)!=0;i++) 
{ 
if(car[i].carnum!=carnum) 
{ 
fwrite(&car[i],sizeof(struct car),1,fp2); 
} 
} 
fclose(fp); 
fclose(fp2); 
printf("是否真的要刪除該卡？刪除后該書籍的所有信息將無法恢復(fù)《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("按任意鍵返回\n"); 
getch(); 
return; 
} 
else 
{ 
printf("按任意鍵返回\n"); 
getch(); 
return; 
} 
} 


addcar() 
{ 
FILE *fp; 
int i=0; 
fp=fopen("car.txt","a+"); 
printf("請你輸入卡號\n"); 
scanf("%d",&car[i].carnum); 
printf("請你輸入學(xué)生姓名\n"); 
scanf("%s",car[i].studentname); 
printf("請你輸入班級\n"); 
scanf("%d",&car[i].studentclass); 
fwrite(&car[i],sizeof(struct car),1,fp); 
fclose(fp); 
printf("輸入完畢，任意鍵返回\n"); 
getch(); 
}