C语言实现图书管理系统
代码如下：
# include "stdio.h"
# include "stdlib.h"
# include "string.h"
# define size 100
typedef struct
{
long booknumber;
char bookname[15];
char auther[20];
char press[20];
float price;
int nownum;
}book;
typedef struct
{
long cardnumber;
char name[20];
char sex[10];
long tel;
char clas[20];
char condition[20];
}Member;
void Bookfound();
void Bookdel();
void Bookadd();
void Booklook();
void Booksearch();
void Memberadd();
void Memberchange();
void Bookborrow();
void Bookreturn();
//***********************************************//
int login(char password[])
{
static char key[10]="123";
if(strcmp(password,key)==0)
return 1;
else
return 0;
}
void main()
{
int choice;
do
{
printf("|==========================================|\n");
printf("| 欢迎使用图书管理系统 |\n");
printf("|******************************************|\n");
printf("| 图书管理 |\n");
printf("|==========================================|\n");
printf("| 1,创建图书信息 |\n");
printf("| 2,删除图书 |\n");
printf("| 3,增添图书 |\n");
printf("| 4,按名称查询图书 |\n");
printf("| 5,按作者查询图书 |\n");
printf("| 6,创建读者信息 |\n");
printf("| 7,修改读者信息 |\n");
printf("|==========================================|\n");
printf("| 借书和还书管理 |\n");
printf("|******************************************|\n");
printf("| 8,借书 |\n");
printf("| 9,还书 |\n");
printf("| 0,退出系统 |\n");
printf("============================================\n");
printf("\n您好！请输您的选择(1,2,3,4,5,6,7,8,9,0):\n");
scanf("%d",&choice);
switch(choice)
{
case 1:Bookfound();break;
case 2:Bookdel();break;
case 3:Bookadd();break;
case 4:Booklook();break;
case 5:Booksearch();break;
case 6: Memberadd();break;
case 7: Memberchange();break;
case 8:Bookborrow();break;
case 9:Bookreturn();break;
case 0:exit(0);break;
}
}while(1);
}
//************************1输入图书信息***********************//
void Bookfound()
{
FILE *fp=NULL;
book a;
char filename[20]="";
int h=1;
printf("\n为了存储图书信息请输入一个文件名.\n");
scanf("%s",filename);
if((fp=fopen(filename,"wb+"))==NULL)
{
printf("\ncan not open this file");
return;
}
printf("请输入书的信息\n");
printf("如过你输入的书号为0则表示输入结束了\n");
while(h<=size)
{
printf("请输入书号:\n");
scanf("%ld",&a.booknumber);
if(a.booknumber==0)
break;
printf("请输入书名:\n");
scanf("%s",a.bookname);
printf("请输入作者:\n");
scanf("%s",a.auther);
printf("请输入出版社:\n");
scanf("%s",a.press );
printf("请输入价格:\n");
scanf("%f",&a.price );
printf("请输入当前的数量:\n");
scanf("%d",&a.nownum);
printf("==================================\n");
if(fwrite(&a,sizeof(book),1,fp)!=1)
{
printf("write file %s fail",filename);
return;
}
h++;
}
fclose(fp);
printf("你输入书的信息已经成功存储在文件里了\n");
printf("输入文件的内容如下:\n");
if((fp=fopen(filename,"rb+"))==NULL)
{
printf("can not open the file.\n");
return;
}
printf("\n书号\t书名\t作者\t出版社\t价格\t数量\n");
while(fread(&a,sizeof(book),1,fp)!=0)
{
printf("\n%ld\t%s\t%s\t%s\t%f\t%d\n",a.booknumber,a.bookname,a.auther,a.press,a.price ,a.nownum );
}
fclose(fp);
}
//************************删除图书信息***********************//
void Bookdel()
{
int i;
long No;
book a;
book s[size];
int R;
char filename[30];
FILE *fp;
printf("\n请输入存放书的文件名.\n");
scanf("%s",filename);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("\ncan not open this file");
return;
}
printf("请输入你要删除的书号:\n");
scanf("%ld",&No);
printf("你要删除的书号为:%ld\n",No);
R=0;
while(fread(&a,sizeof(book),1,fp)!=0)
{
if(a.booknumber!=No)
{
s[R].booknumber=a.booknumber;
strcpy(s[R].bookname,a.bookname);
strcpy(s[R].auther,a.auther);
strcpy(s[R].press,a.press);
s[R].price =a.price;
s[R].nownum =a.nownum ;
R++;
}
}
fclose(fp);
if((fp=fopen(filename,"wb+"))==NULL)
{
printf("\ncan not open this file");
return;
}
for(i=0;i<R;i++)
{
if(fwrite(&s[i],sizeof(book),1,fp)!=1)
{
printf("write file %s fail",filename);
return;
}
}
fclose(fp);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("\ncan not open this file");
return;
}
printf("删除以后文件里的内容如下:\n");
printf("\n书号r\t书名\t作者\t出版社\t价格\t数量\n");
while(fread(&a,sizeof(book),1,fp)!=0)
{
if(a.booknumber!=0)
printf("\n%ld\t%s\t%s\t%s\t%f\t%d\n",a.booknumber,a.bookname,a.auther,a.press,a.price,a.nownum);
}
fclose(fp);
}
//************************增加图书信息***********************//
void Bookadd()
{
FILE *fp=NULL;
book a;
char filename[30];
int h=1;
printf("\n请输入存放书的文件名.\n");
scanf("%s",filename);
if((fp=fopen(filename,"a+"))==NULL)
{
printf("\ncan not open this file");
return;
}
printf("请输入你要添加的书的信息\n");
printf("如果你输入的书号为0，这表示输入结束\n");
while(h<=size)
{
printf("请输入书号\n");
scanf("%ld",&a.booknumber);
if(a.booknumber==0)
break;
printf("请输入书名:\n");
scanf("%s",a.bookname);
printf("请输入作者:\n");
scanf("%s",a.auther);
printf("请输入出版社:\n");
scanf("%s",a.press);
printf("请输入价格\n");
scanf("%f",&a.price);
printf("请输入当前的数量:\n");
scanf("%d",&a.nownum);
printf("==================================\n");
if(fwrite(&a,sizeof(book),1,fp)!=1)
{
printf("write file %s fail",filename);
return;
}
h++;
}
if(h>size)
printf("\n对不起，您的输入超量了");
fclose(fp);
printf("您输入的内容成功存储在文件中\n");
printf("内容如下:\n");
if((fp=fopen(filename,"rb"))==NULL)
{
printf("cannot open the file\n");
return;
}
printf("\n书号\t书名\t作者\t出版社\t价格\t数量\n");
while(fread(&a,sizeof(book),1,fp)!=0)
{
printf("\n%ld\t%s\t%s\t%s\t%f\t%d\n",a.booknumber,a.bookname,a.auther,a.press ,a.price,a.nownum );
}
fclose(fp);
}
//***********************按书名查询图书信息************************//
void Booklook()
{
FILE *fp;
book a;
char shum[20];
int result=0;
char filename[20];
printf("请输入您要查询的书名:\n");
scanf("%s",shum);
result=0;
printf("\n请输入存储书的文件名.\n");
scanf("%s",filename);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("\ncan not open this file.");
return;
}
while(feof(fp)==0)
{
{if(fread(&a,sizeof(book),1,fp)!=0)
if(strcmp(shum,a.bookname)==0)
{
printf(":\n您要查找的图书信息如下:\n");
printf("书名:%s\n",a.bookname);
printf("书号:%ld\n",a.booknumber);
printf("价格:%f\n",a.price);
printf("作者:%s\n",a.auther);
printf("出版社:%s\n",a.press);
printf("当前数量:%d\n",a.nownum);
result=1;
}
}
}
fclose(fp);
if(result==0)
{
printf("对不起没有你要找的书");
}
}
//***********************按作者查询图书信息************************//
void Booksearch()
{
FILE *fp;
book a;
char zuoz[20];
int result=0;
char filename[20];
printf("请输入您要查询图书的作者:\n");
scanf("%s",zuoz);
result=0;
printf("\n请输入存储书的文件名.\n");
scanf("%s",filename);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("\ncan not open this file.");
return;
}
while(feof(fp)==0)
{
{if(fread(&a,sizeof(book),1,fp)!=0)
if(strcmp(zuoz,a.bookname)==0)
{
printf(":\nnin要查找的图书信息如下:\n");
printf("书名:%s\n",a.bookname);
printf("书号:%ld\n",a.booknumber);
printf("价格:%f\n",a.price);
printf("作者:%s\n",a.auther);
printf("出版社:%s\n",a.press);
printf("当前数量:%d\n",a.nownum);
result=1;
}
}
}
fclose(fp);
if(result==0)
{
printf("对不起没有你要找的书");
}
}
//************************创建读者信息************************//
void Memberadd()
{
FILE *fp=NULL;
Member a;
char Datafile[30]="";
int count=1;
printf("\n请输入存储读者的文件名\n");
scanf("%s",Datafile);
if((fp=fopen(Datafile,"a+"))==NULL)
{
printf("\ncan not open this file");
return;
}
printf("请输入读者的信息\n");
printf("\n如果输入的卡号为0表示输入结束\n");
while(count<=size)
{
printf("请输入卡号:\n");
scanf("%ld",&a.cardnumber);
if(a.cardnumber==0)
break;
printf("请输入名字:\n");
scanf("%s",a.name);
printf("请输入性别:\n");
scanf("%s",a.sex);
printf("请输入手机号码:\n");
scanf("%ld",&a.tel);
printf("请输入班级:\n");
scanf("%s",a.clas);
printf("请输入借书状态:\n");
scanf("%s",a.condition );
printf("----------------------------------\n");
if(fwrite(&a,sizeof(Member),1,fp)!=1)
{
printf("write file %s fail",Datafile);
return;
}
count++;
}
if(count>size)
printf("\n对不起，您输入的读者数量超量\n");
fclose(fp);
printf("您增添的读者信息已经成功存储在会员文件中\n");
printf("增添后的内容如下:\n");
if((fp=fopen(Datafile,"rb"))==NULL)
{
printf("cannot open the file\n");
return;
}
printf("\n卡号\t姓名\t性别\t手机号码\t班级\t借书状态\n");
while(fread(&a,sizeof(Member),1,fp)!=0)
{
printf("\n%ld\t%s\t%s\t%ld\t%s\t%s\n",a.cardnumber,a.name,a.sex,a.tel,a.clas,a.condition);
}
fclose(fp);
}
//************************读者信息修改*****************************//
void Memberchange()
{
FILE *fp;
long num;
long cardnumber;
char name[20];
char sex[10];
long tel;
char clas[20];
char condition[20];
Member a;
Member s[size];
int R,i;
char filename[30];
printf("\n请输入存储读者的文件名\n");
scanf("%s",filename);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("\nopen file %s fail",filename);
return;
}
printf("请输入你要修改的读者的卡号:\n");
scanf("%ld",&num);
cardnumber=num;
printf("请输入名字:\n");
scanf("%s",name);
printf("请输入性别:\n");
scanf("%s",sex );
printf("请输入现在的手机号码:\n");
scanf("%ld",&tel);
printf("请输入现在的班级:\n");
scanf("%s",clas);
printf("请输入借书状态:\n");
scanf("%s",condition);
R=0;
while(fread(&a,sizeof(Member),1,fp)!=0)
{
if(a.cardnumber!=num)
{
s[R].cardnumber=a.cardnumber;
strcpy(s[R].name,a.name);
strcpy(s[R].sex,a.sex);
strcpy(s[R].clas,a.clas);
strcpy(s[R].condition,a.condition);
s[R].tel=a.tel;
R++;
}
else
{
s[R].cardnumber=cardnumber;
strcpy(s[R].name,name);
strcpy(s[R].sex,sex);
strcpy(s[R].clas,clas);
strcpy(s[R].condition,a.condition);
s[R].tel=tel;
R++;
}
}
fclose(fp);
if((fp=fopen(filename,"wb+"))==NULL)
{
printf("cannot open the file\n");
return;
}
for(i=0;i<R;i++)
{
if(fwrite(&s[i],sizeof(Member),1,fp)!=1)
{
printf("\nopen the file %s fail",filename);
return;
}
}
fclose(fp);
printf("你修改读者内容信息已经成功存储在文件中\n");
printf("修改后的内容如下:\n");
if((fp=fopen(filename,"rb"))==NULL)
{
printf("can not open the file\n");
return;
}
printf("\n卡号\t姓名\t性别\t手机号码\t班级\t借书状态\n");
while(fread(&a,sizeof(Member),1,fp)!=0)
{
if(a.cardnumber!=0)
printf("\n%ld\t%s\t%s\t%ld\t%s\t%s\n",a.cardnumber,a.name,a.sex,a.tel,a.clas,a.condition);
}
fclose(fp);
}
//***********************借书***********************//
void Bookborrow()
{
FILE *fp;
book a;
Member b;
int mflag=0,flag=0;
char bookname[20],membername[20];
char filename[20];
printf("请输入名字:\n");
scanf("%s",membername);
printf("\n请输入存储读者的文件名:");
scanf("%s",filename);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("cannot open the file\n");
return;
}
while(feof(fp)==0)
{
if(fread(&b,sizeof(Member),1,fp)!=0)
{
if(strcmp(membername,b.name)==0)
{
mflag=1;
break;
}
}
}
fclose(fp);
if(mflag==1)
{
printf("你可以借书\n");
printf("请输入你要借的书名:\n");
scanf("%s",bookname);
printf("请输入存储图书的文件名:\n");
scanf("%s",filename);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("cannot open file\n");
return;
}
while(feof(fp)==0)
{
if(fread(&a,sizeof(book),1,fp)!=0)
{
if(strcmp(bookname,a.bookname)==0)
{
printf("这本书存在\n");
printf("恭喜你你借书成功了\n");
flag=1;
}
}
}
if(flag==0)
{
printf("对不起，这本书被别人借走了\n");
printf("借书失败了\n");
}
if(flag==1)
{
printf("请修该图书和读者信息，把该书的信息添加到图书信息文件中，把读者的状态改为已借书状态\n");
printf("请去选择相应的功能进行修改\n");
}
fclose(fp);
}
}
//************************还书************************//
void Bookreturn()
{
FILE *fp;
book a;
Member b;
int mflag=0,flag=0;
char bookname[20],membername[20];
char filename[20];
printf("请输入名字:\n");
scanf("%s",membername);
printf("\n请输入存储的文件名:");
scanf("%s",filename);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("cannot open the file\n");
return;
}
while(feof(fp)==0)
{
if(fread(&b,sizeof(Member),1,fp)!=0)
{
if(strcmp(membername,b.name)==0)
{
mflag=1;
break;
}
}
}
if(mflag==0)
{
printf("别忽悠人!你不是读者,你不可以还书!\n");
}
if(mflag==1)
{
printf("您可以还书!\n");
fclose(fp);
printf("请输入要还的书名:\n");
scanf("%s",bookname);
printf("请输入存储图书的文件名:\n");
scanf("%s",filename);
if((fp=fopen(filename,"rb"))==NULL)
{
printf("cannot open file\n");
return;
}
while(feof(fp)==0)
{
if(fread(&a,sizeof(book),1,fp)!=0)
{
if(strcmp(bookname,a.bookname)==0)
{
printf("恭喜您,还书成功!\n");
flag=1;
}
}
}
if(flag==0)
{
printf("对不起，您还错了。这本书不是我们图书馆的!\n");
printf("对不起,还书失败\n");
flag=0;
}
if(flag==1)
{
printf("请修该图书和读者信息，把该书的信息添加到图书信息文件中，把读者的状态改为已换书状态\n");
printf("请选择相应的功能进行修改\n");
}
fclose(fp);
}
}
运行效果图
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