C语言图书统计函数 c语言 图书馆
急~c语言图书管理
#includestdio.h
网站建设哪家好，找创新互联！专注于网页设计、网站建设、微信开发、成都微信小程序、集团企业网站建设等服务项目。为回馈新老客户创新互联还提供了始兴免费建站欢迎大家使用！
#includestring.h
#includeconio.h
#includestdlib.h
#includectype.h
#define STACK_INIT_SIZE 10
#define OK 1
#define TRUE 1
#define FALSE 0
#define ERROR 0
struct student /*定义学生类型，用于存放借出的书籍*/
{
int studentnum,phonenum;
char lendbook[10];
}student[1000];
struct book /*定义书的类型*/
{
char bookname[11];
char publisher[20];
char page;
char year[6];
char status[4];
char name[11];
char author[51];
char booknum;
char bookcreat[10];
char borrownum;
char 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 car /*借书卡的数据类型*/
{
int carnum;
char studentname[10];
int studentclass;
int studentphone;
}car[100];
addcar()
{
FILE *fp;
int i=0;
double allnum,stillbook,outbook,allmoney,avemoney;
fp=fopen("car.txt","a+");
printf("请你输入学生姓名\n");
scanf("%s",car[i].studentname);
printf("请你输入班级\n");
scanf("%d",car[i].studentclass);
fwrite(car[i],sizeof(struct car),1,fp);
fclose(fp);
printf("注册完毕，任意键返回\n");
fp=fopen("book.txt","r");
avemoney=allmoney/allnum;
fclose(fp);
printf("书籍总数：%ld，已借出的书籍：%ld，在馆的书籍：%ld，书籍贯总金额：%ld,书籍平均价格：%ld",
stillbook,outbook,allmoney,avemoney);
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张卡卡号：%d 姓名：%s 班级：%d 手机号码：%d\n",
i+1,car[i].carnum,car[i].studentname,car[i].studentclass,car[i].studentphone);
n=n+1;
}
fclose(fp);
printf("目前共有%d本书\n",n);
printf("按任意键\n");
getch();
}
void findbook()
{
FILE *fp;
char bookname[10];
int ture,i,booknum;
fp=fopen("book.txt","r");
printf("请输入你要查找的booknum");
scanf("%d",booknum);
for(i=0;fread(book[i],sizeof(struct book),1,fp)!=0;i++)
{
if(strcmp(booknum,book[i].booknum)==0)
{
if(book[i].turefalse==1)
printf("这本书的详细资料是：%d %s %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].bookcreat);
else
fclose(fp);
return FALSE;
}
else
printf("没有你要查询的书籍\n");
fclose(fp);}
return FALSE;
}
void borrowbook(struct book *m) //借阅图书函数
{
int num;
struct book *b, *b1;
printf("输入要借书的编码:");
scanf("%d",num);
b = searchbook(num); /*调用查找图书结点函数*/
if(b != NULL)
{
if(m-borrownum 10)
{
// b-status = '0';
// b1 = m-book[m-borrownum];
strcpy(b1-name,b-name);
strcpy(b1-author,b-author);
b1-booknum = b-booknum;
strcpy(b1-year,b-year);
b1-page = b-page;
strcpy(b1-publisher,b-publisher);
// b1-price = b-price;
// b1-status = b-status;
m-borrownum++;
printf("%s借书成功!",b-name);
getch();
}
else
{
printf("你已借满10本书.");
getch();
}
}
else
{
printf("没有你要借的书.");
getch();
}
}
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 carnum,booknum;
char lendbook[10];
printf("请你输入你的卡号\n");
scanf("%d",carnum);
fp=fopen("car.txt","r"); /*读取卡号记录*/
{
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booknum\n");
scanf("%d",booknum);
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;
}
else
printf("你没有借这样的书，任意键返回\n");}/*出错提示*/
fclose(fp);
getch();
return 0;
}
else
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();
}
void main()
{
struct book *m;
char ch5;
do
{
printf("---------------欢迎进入图书查询系统！--------------\n");
printf(" 1：注册卡号\n");
printf(" 2: 卡号信息\n");
printf(" 3：按书籍编号查找\n");
printf(" 4: 借书\n");
printf(" 5: 还书\n");
printf(" 0：返回\n");
printf("请输入0--5,其他输入非法！\n");
scanf("%s",ch5);
switch(ch5)
{
case '1':addcar();getch();
case '2':carcount();getch();break;
case '3':findbook();getch();break;
case '4':borrowbook(m );getch();break;
case '5':huanbook();getch();break;
case '0':break;
default:printf("无此操作\n");getch();break;
}
}while(ch5!='0');
//return FALSE;
}
自己改一下，应该没有什么问题的，
C语言读取文件时如何统计函数个数
使用fopen函数打开文件，使用fgetc()一个字符一个字符的读取，然后计数统计就可以啦，fget()从文件指针stream指向的文件中读取一个字符，读取一个字节后，光标位置后移一个字节，这个函数的返回值，是返回所读取的一个字节。如果读到文件末尾或者读取出错时返回EOF。
#includestdio.h
int main()
{
FILE *fp;
char filename[50];
int num=0;
printf("输入一个文件名: ");
gets(filename);
if((fp=fopen(filename,"r"))==NULL)
{
printf("文件打开失败..\n");
return ;
}
while(!feof(fp))fgetc(fp)num++;
printf("%s 文件中共有字符个数: %d\n",filename,num);
fclose(fp);
return ;
}
c语言图书管理系统
#include stdio.h
#include stdlib.h
#include time.h
#include string.h
typedef int BOOL;
typedef struct bookinfo
{
char number[15];/*产品编号*/
char name[30];/*产品名称*/
float price;/*单价*/
char auther[20];/*作者*/
BOOL isExit;/*存在状态*/
char lendername[20];/*借书人姓名*/
char lendersex[2];/*借书人性别*/
char lendernum[15];/*借书人学号*/
}BOOKINFO;
void menu()
{
printf("\n\n\n\n\n\n\n");
printf("\t\t\t图书管理系统\n");
printf("\t\t\t1:新进图书基本信息的输入\n");
printf("\t\t\t2:显示全部记录\n");
printf("\t\t\t3:根据图书名称查询图书基本信息\n");
printf("\t\t\t4:根据图书名称对撤销的图书信息进行删除\n");
printf("\t\t\t5:按照图书名称从小大到排序\n");
printf("\t\t\t6:统计某价格以上的图书数量\n");
printf("\t\t\t7:列出所有未借出去的图书信息\n");
printf("\t\t\t8:退出\n");
}
void choice_1_input_new()/*输入新进的图书信息*/
{
char choice;
FILE *p;
BOOKINFO newbook;
system("cls");
while(1)
{
printf("输入图书编号:");
gets(newbook.number);
printf("输入图书名称:");
gets(newbook.name);
printf("输入图书单价:");
scanf("%f",newbook.price);
while(getchar()!='\n');
printf("输入图书的作者:");
gets(newbook.auther);
printf("输入借书人姓名:");
gets(newbook.lendername);
printf("输入借书人性别:");
gets(newbook.lendersex);
printf("输入借书人学号:");
gets(newbook.lendernum);
printf("是否保存该条书目?(Y/N)\n");
choice=getch();
while(choice!='Y'choice!='y'choice!='N'choice!='n')
choice=getch();
if(choice=='Y'||choice=='y')
{
newbook.isExit=1;/*将图书状态设置成1，表示没有借出*/
p=fopen("c:\\bookinfo.data","ab");
fwrite(newbook,sizeof(BOOKINFO),1,p);
fclose(p);
printf("\n该条书目已添加到c:\\bookinfo.data文件中!\n");
}
else
{
printf("\n本条书目未保存!\n");
}
printf("\n是否继续添加书目?(Y/N)\n");
choice=getch();
while(choice!='Y'choice!='y'choice!='N'choice!='n')
choice=getch();
if(choice=='Y'||choice=='y')
continue;
else
break;
}
}
void choice_2_display_all()/*显示全部图书信息*/
{
FILE *p;
int n;
BOOKINFO bookinfo[100];
int booknumber=0;
system("cls");
p=fopen("c:\\bookinfo.data","rb");
while(!feof(p))
{
fread(bookinfo[booknumber],sizeof(BOOKINFO),1,p);
booknumber++;
}
/*booknumber--;使用feof()函数会多读一行，因此需要booknumber自减一次，使书目的数量正确*/
fclose(p);
booknumber--;
if(booknumber==0)
{
printf("没有任何图书信息!\n\n");
}
else
{
n=0;
printf(" 图书信息如下\n");
printf(" 图书信息 | 借书人信息 \n");
printf("编号 名称 单价 作者 图书状态 | 姓名 性别 学号\n");
while(nbooknumber)
{
printf("%-6s%-12s%-8.1f%-8s%-9d| %-12s%-8s%-8s\n",
bookinfo[n].number,bookinfo[n].name,bookinfo[n].price,
bookinfo[n].auther,bookinfo[n].isExit,bookinfo[n].lendername,
bookinfo[n].lendersex,bookinfo[n].lendernum);
n++;
}
}
printf("\n\n按任意键回到主菜单!\n");
getch();
}
void choice_3_search_according_name()/*根据图书名称显示图书的信息*/
{
char search[20]="";/*search用来存放要查询的书名*/
int n;
FILE *p;
char choice;
BOOKINFO bookinfo[100];
int booknumber=0;
system("cls");
p=fopen("c:\\bookinfo.data","rb");
while(!feof(p))
{
fread(bookinfo[booknumber],sizeof(BOOKINFO),1,p);
booknumber++;
}
booknumber--;/*使用feof()函数会多读一行，因此需要booknumber自减一次，使书目的数量正确*/
fclose(p);
while(1)
{
printf("输入要查询的书本名称:");
gets(search);
if(booknumber==0)
{
printf("书库中没有任何信息!\n\n");
printf("按任意键回到主菜单!\n\n");
getch();
break;
}/*if结束*/
else
{
for(n=0;nbooknumber;n++)
if(strcmp(bookinfo[n].name,search)==0)
{
printf("该书的详细信息如下:\n");
printf(" 图书信息 | 借书人信息 \n");
printf("编号 名称 单价 作者 图书状态 | 姓名 性别 学号\n");
printf("%-6s%-12s%-8.1f%-8s%-9d| %-12s%-8s%-8s\n",
bookinfo[n].number,bookinfo[n].name,bookinfo[n].price,
bookinfo[n].auther,bookinfo[n].isExit,bookinfo[n].lendername,
bookinfo[n].lendersex,bookinfo[n].lendernum);
break;
}
if(n=booknumber)
printf("没有查找该书的任何信息!\n");
printf("\n\n是否继续查询?(Y/N)\n");
choice=getch();
while(choice!='Y'choice!='y'choice!='N'choice!='n')
choice=getch();
if(choice=='Y'||choice=='y')
continue;
else
break;
}/*else结束*/
}/*while(1)结束*/
}
void choice_4_delete_according_name()/*根据图书名称对图书信息进行删除*/
{
char search[20]="";/*search用来存放要删除的书名*/
int n,i;
FILE *p;
char choice;
BOOKINFO bookinfo[100];
int booknumber;
system("cls");
while(1)
{
printf("输入要删除的书本名称:");
gets(search);
p=fopen("c:\\bookinfo.data","rb");
booknumber=0;
while(!feof(p))
{
fread(bookinfo[booknumber],sizeof(BOOKINFO),1,p);
booknumber++;
}
booknumber--;/*使用feof()函数会多读一行，因此需要booknumber自减一次，使书目的数量正确*/
fclose(p);
if(booknumber==0)
{
printf("书库中没有任何信息!\n\n");
printf("按任意键回到主菜单!\n\n");
getch();
break;
}/*if结束*/
else
{
for(n=0;nbooknumber;n++)
if(strcmp(bookinfo[n].name,search)==0)
{
break;
}
if(n=booknumber)
printf("没有查找该书的任何信息!\n");
else
{
printf("是否确认需要删除该条书目?(Y/N)");
choice=getch();
while(choice!='Y'choice!='y'choice!='N'choice!='n')
choice=getch();
if(choice=='Y'||choice=='y')
{
for(i=n;ibooknumber-1;i++)
bookinfo[i]=bookinfo[i+1];
booknumber--;
p=fopen("c:\\bookinfo.data","wb");
for(n=0;nbooknumber;n++)
fwrite(bookinfo[n],sizeof(BOOKINFO),1,p);
fclose(p);
printf("删除成功!\n");
}
else
printf("\n\n该条书目没有被删除!");
}
printf("\n\n是否继续进行删除操作?(Y/N)\n");
choice=getch();
while(choice!='Y'choice!='y'choice!='N'choice!='n')
choice=getch();
if(choice=='Y'||choice=='y')
continue;
else
break;
}/*else结束*/
}/*while(1)结束*/
}
void choice_5_sort_according_name()/*根据图书名称排序*/
{
FILE *p;
int m,n;
BOOKINFO temp;
BOOKINFO bookinfo[100];
int booknumber;
p=fopen("c:\\bookinfo.data","rb");
booknumber=0;
system("cls");
while(!feof(p))
{
fread(bookinfo[booknumber],sizeof(BOOKINFO),1,p);
booknumber++;
}
booknumber--;/*使用feof()函数会多读一行，因此需要booknumber自减一次，使书目的数量正确*/
fclose(p);
if(booknumber==0)
{
printf("没有任何图书信息!\n\n");
}
else
{
for(m=0;mbooknumber-1;m++)
for(n=m+1;nbooknumber;n++)
if(strcmp(bookinfo[m].name,bookinfo[n].name)0)
{
temp=bookinfo[m];
bookinfo[m]=bookinfo[n];
bookinfo[n]=temp;
}
p=fopen("c:\\bookinfo.data","wb");
for(m=0;mbooknumber;m++)
fwrite(bookinfo[m],sizeof(BOOKINFO),1,p);
fclose(p);
printf("\n\n完成排序!\n\n");
}
printf("按任意键回到主菜单!\n");
getch();
}
void choice_6_display_high_price()/*根据价格列出图书信息*/
{
float price;
FILE *p;
int n;
int count=0;
BOOKINFO bookinfo[100];
int booknumber;
system("cls");
printf("请输入价格:");
scanf("%f",price);
p=fopen("c:\\bookinfo.data","rb");
booknumber=0;
while(!feof(p))
{
fread(bookinfo[booknumber],sizeof(BOOKINFO),1,p);
booknumber++;
}
booknumber--;/*使用feof()函数会多读一行，因此需要booknumber自减一次，使书目的数量正确*/
fclose(p);
if(booknumber==0)
{
printf("没有任何图书信息!\n\n");
}
else
{
for(n=0;nbooknumber;n++)
{
if(bookinfo[n].price=price)
count++;
}
if(count==0)
printf("书库中没有比%.1f$价格高的图书!",price);
else
{
printf(" 价格高于%.1f$的图书信息如下\n",price);
printf(" 图书信息 | 借书人信息 \n");
printf("编号 名称 单价 作者 图书状态 | 姓名 性别 学号\n");
for(n=0;nbooknumber;n++)
{
if(bookinfo[n].price=price)
printf("%-6s%-12s%-8.1f%-8s%-9d| %-12s%-8s%-8s\n",
bookinfo[n].number,bookinfo[n].name,bookinfo[n].price,
bookinfo[n].auther,bookinfo[n].isExit,bookinfo[n].lendername,
bookinfo[n].lendersex,bookinfo[n].lendernum);
}
}
}
printf("\n\n按任意键回到主菜单!\n");
getch();
}
void choice_7_display_according_exitflag()/*根据存在状态列出图书信息*/
{
FILE *p;
int n;
int count=0;
BOOKINFO bookinfo[100];
int booknumber;
system("cls");
booknumber=0;
p=fopen("c:\\bookinfo.data","rb");
while(!feof(p))
{
fread(bookinfo[booknumber],sizeof(BOOKINFO),1,p);
booknumber++;
}
booknumber--;
fclose(p);
if(booknumber==0)
{
printf("书库中没有任何书目存在!\n");
}
else
{
for(n=0;nbooknumber;n++)
if(bookinfo[n].isExit==1)
count++;
if(count==0)
printf("书库中的书籍全部借出!\n");
else
{
printf("书库中未被借出的图书信息如下:\n\n");
printf(" 图书信息 | 借书人信息 \n");
printf("编号 名称 单价 作者 图书状态 | 姓名 性别 学号\n");
for(n=0;nbooknumber;n++)
if(bookinfo[n].isExit==1)
{
printf("%-6s%-12s%-8.1f%-8s%-9d| %-12s%-8s%-8s\n",
bookinfo[n].number,bookinfo[n].name,bookinfo[n].price,
bookinfo[n].auther,bookinfo[n].isExit,bookinfo[n].lendername,
bookinfo[n].lendersex,bookinfo[n].lendernum);
}
}
}
printf("\n按任意键返回主菜单!\n");
getch();
}
void main()
{
char choice;
clock_t tm;
FILE *p;
if((p=fopen("c:\\bookinfo.data","rb"))==NULL)
{
p=fopen("c:\\bookinfo.data","wb");
fclose(p);
}
while(1)
{
system("cls");
menu();
choice=getch();
switch(choice)
{
case '1':choice_1_input_new();break;/*输入新进的图书信息*/
case '2':choice_2_display_all();break;/*显示全部图书信息*/
case '3':choice_3_search_according_name();break;/*根据图书名称显示图书的信息*/
case '4':choice_4_delete_according_name();break;/*根据图书名称对图书信息进行删除*/
case '5':choice_5_sort_according_name();break;/*根据图书名称排序*/
case '6':choice_6_display_high_price();break;/*根据价格列出图书信息*/
case '7':choice_7_display_according_exitflag();break;/*根据存在状态列出图书信息*/
case '8':printf("\n\n\t\t\t谢谢使用,再见!\n\t\t\t按任意键退出!\n");getch();return;
default:
printf("\n\n\t\t\t请输入菜单中的数字!(1~8)");
tm=clock();
while(clock()tm+1800);
break;
}
}
}
写的很赶,不知道行不行
程序很长，但是没什么复杂的东西。
要是写的不好，楼主就将就吧。
用C语言编写一个简单的图书管理小程序
源代码如下：
#includeiostream
#includeiomanip
#includestring
#includefstream
#includestdio.h
using namespace std;
const int maxb=10000; //最多的图书
class book//图书类
{
int tag; //删除标记1:已删0:未删
int number; //isbn书号
char name[20]; //书名
char author[10]; //主编
char number2[10];//版次
char position[20];//出版社
char time[20];//出版年
void addbook(int n,char *na,char *au,char *n2,char *da,char *ti,int pr) //增加图书
{
tag=0;
number=n;
price=pr;
strcpy(name,na);
strcpy(author,au);
strcpy(number2,n2);
strcpy(position,da);
strcpy(time,ti);
onshelf=1;
}
扩展资料
1、源程序中，很多符号都是成对匹配出现的，为避免遗漏必须配对使用的符号。
2、用花括号括起来的部分，但从程序结构清晰，便于阅读、理解、维护的角度出发，建议在书写程序时应遵循以下规则，以养成良好的编程习惯。
3、一个说明或一条语句占一行，与该结构开始处的左花括号对齐。
c语言图书资产统计系统
希望对你有用
#includestdio.h
#includestring.h
#includeconio.h
#includestdlib.h
#includectype.h
#define STACK_INIT_SIZE 10
#define OK 1
#define TRUE 1
#define FALSE 0
#define ERROR 0
struct student /*定义学生类型，用于存放借出的书籍*/
{
int carnum;
char lendbook[10];
}student[1000];
struct employ /*定义职工类型*/
{
int employnum;
char employname[15];
int employage;
char employsex[2];
char employleve[10];
long int employtage;
}employ[50];
struct book /*定义书的类型*/
{
int booknum;
char bookname[10];
char bookcreat[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 car /*借书卡的数据类型*/
{
int carnum;
char studentname[10];
int studentclass;
}car[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 carnum;
char lendbook[10];
printf("请你输入你的卡号\n");
scanf("%d",carnum);
fp=fopen("car.txt","r"); /*读取卡号记录*/
for(i=0;fread(car[i],sizeof(struct car),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("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：%d %s %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].bookcreat);
}
else
fclose(fp);
return FALSE;
}
}
printf("没有你要查询的书籍\n");
fclose(fp);
return FALSE;
}
findbook1()
{
FILE *fp;
char bookcreat[10];
int ture,i;
fp=fopen("book.txt","r");
printf("请输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("这本书的详细资料是：%d %s %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].bookcreat);
}
else
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].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;
}
chabook()
{
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 carnum;
printf("请你输入你的卡号\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("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)
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;
}
}
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();
}
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张卡卡号：%d 姓名：%s 班级：%d\n",i+1,car[i].carnum,car[i].studentname,car[i].studentclass);
n=n+1;
}
fclose(fp);
printf("目前共有%d本书\n",n);
printf("按任意键\n");
getch();
}
delcar()
{
FILE *fp,*fp2;
int i;
int carnum;
char choice;
fp=fopen("car.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",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("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("按任意键返回\n");
getch();
return;
}
else
{
printf("按任意键返回\n");
getch();
return;
}
}
addcar()
{
FILE *fp;
int i=0;
fp=fopen("car.txt","a+");
printf("请你输入卡号\n");
scanf("%d",car[i].carnum);
printf("请你输入学生姓名\n");
scanf("%s",car[i].studentname);
printf("请你输入班级\n");
scanf("%d",car[i].studentclass);
fwrite(car[i],sizeof(struct car),1,fp);
fclose(fp);
printf("输入完毕，任意键返回\n");
getch();
}
网站名称：C语言图书统计函数 c语言 图书馆
文章URL：http://ybzwz.com/article/doscicj.html
