c语言设计图书馆管理系统

❷ 怎样用C语言制作图书馆管理系统

这个是自己写的
注释很清楚地

有什么不清楚的问我

#include<stdio.h>
#include<math.h>
#include<string.h>
#include<stdlib.h>

struct books_list
{

char author[20]; /*作者名*/
char bookname[20]; /*书名*/
char publisher[20]; /*出版单位*/
char pbtime[15]; /*出版时间*/
char loginnum[10]; /*登陆号*/
float price; /*价格*/
char classfy[10]; /*分类号*/
struct books_list * next; /*链表的指针域*/
};

struct books_list * Create_Books_Doc(); /*新建链表*/
void InsertDoc(struct books_list * head); /*插入*/
void DeleteDoc(struct books_list * head , int num);/*删除*/
void Print_Book_Doc(struct books_list * head);/*浏览*/
void search_book(struct books_list * head); /*查询*/
void info_change(struct books_list * head);/*修改*/
void save(struct books_list * head);/*保存数据至文件*/

/*新建链表头节点*/
struct books_list * Create_Books_Doc()
{
struct books_list * head;
head=(struct books_list *)malloc(sizeof(struct books_list)); /*分配头节点空间*/
head->next=NULL; /*头节点指针域初始化，定为空*/
return head;
}

/*保存数据至文件*/
void save(struct books_list * head)
{
struct books_list *p;
FILE *fp;
p=head;
fp=fopen("data.txt","w+"); /*以写方式新建并打开 data.txt文件*/
fprintf(fp,"┏━━━┳━━━━━┳━━━━━┳━━━━━┳━━━━━━┳━━━┳━━━━┓\n"); /*向文件输出表格*/
fprintf(fp,"┃登录号┃ 书 名 ┃ 作 者┃ 出版单位 ┃ 出版时间 ┃分类号┃ 价格 ┃\n");
fprintf(fp,"┣━━━╋━━━━━╋━━━━━╋━━━━━╋━━━━━━╋━━━╋━━━━┫\n");
/*指针从头节点开始移动，遍历至尾结点，依次输出图书信息*/
while(p->next!= NULL)
{
p=p->next;
fprintf(fp,"┃%-6.6s┃%-10.10s┃%-10.10s┃%-10.10s┃%-12.12s┃%-6.6s┃%.2f ┃\n",p->loginnum,p->bookname,p->author,p->publisher,p->pbtime,p->classfy,p->price);
}
fprintf(fp,"┗━━━┻━━━━━┻━━━━━┻━━━━━┻━━━━━━┻━━━┻━━━━┛\n");
fclose(fp);
printf(" 已将图书数据保存到 data.txt 文件\n");
}

/*插入*/
void InsertDoc(struct books_list *head)
{
/*定义结构体指针变量 s指向开辟的新结点首地址 p为中间变量*/
struct books_list *s, *p;
char flag='Y'; /*定义flag,方便用户选择重复输入*/
p=head;
/*遍历到尾结点，p指向尾结点*/
while(p->next!= NULL)
{
p=p->next;
}
/*开辟新空间,存入数据,添加进链表*/
while(flag=='Y'||flag=='y')
{
s=(struct books_list *)malloc(sizeof(struct books_list));
printf("\n 请输入图书登陆号:");
fflush(stdin);
scanf("%s",s->loginnum);
printf("\n 请输入图书书名:");
fflush(stdin);
scanf("%s",s->bookname);
printf("\n 请输入图书作者名:");
fflush(stdin);
scanf("%s",s->author);
printf("\n 请输入图书出版社:");
fflush(stdin);
scanf("%s",s->publisher);
printf("\n 请输入图书出版时间:");
fflush(stdin);
scanf("%s",s->pbtime);
printf("\n 请输入图书分类号:");
fflush(stdin);
scanf("%s",s->classfy);
printf("\n 请输入图书价格:");
fflush(stdin);
scanf("%f",&s->price);
printf("\n");
p->next=s; /*将新增加的节点添加进链表*/
p=s; /*p指向尾节点，向后移*/
s->next=NULL;
printf(" ━━━━ 添加成功！━━━━");
printf("\n 继续添加？(Y/N):");
fflush(stdin);
scanf("%c",&flag);
printf("\n");
if(flag=='N'||flag=='n')
{break;}
else if(flag=='Y'||flag=='y')
{continue;}
}
save(head); /*保存数据至文件*/
return;
}

/*查询操作*/

void search_book(struct books_list *head)
{
struct books_list * p;
char temp[20];
p=head;
if(head==NULL || head->next==NULL) /*判断数据库是否为空*/
{
printf(" ━━━━ 图书库为空！━━━━\n");
}
else
{
printf("请输入您要查找的书名: ");
fflush(stdin);
scanf("%s",temp);
/*指针从头节点开始移动，遍历至尾结点，查找书目信息*/
while(p->next!= NULL)
{
p=p->next;
if(strcmp(p->bookname,temp)==0)
{
printf("\n图书已找到!\n");
printf("\n");
printf("登录号: %s\t\n",p->loginnum);
printf("书名: %s\t\n",p->bookname);
printf("作者名: %s\t\n",p->author);
printf("出版单位: %s\t\n",p->publisher);
printf("出版时间: %s\t\n",p->pbtime);
printf("分类号: %s\t\n",p->classfy);
printf("价格: %.2f\t\n",p->price);
}
if(p->next==NULL)
{
printf("\n查询完毕!\n");
}
}
}
return;
}

/*浏览操作*/

void Print_Book_Doc(struct books_list * head)
{
struct books_list * p;
if(head==NULL || head->next==NULL) /*判断数据库是否为空*/
{
printf("\n ━━━━ 没有图书记录! ━━━━\n\n");
return;
}
p=head;
printf("┏━━━┳━━━━━┳━━━━━┳━━━━━┳━━━━━━┳━━━┳━━━━┓\n");
printf("┃登录号┃ 书 名 ┃ 作 者┃ 出版单位 ┃ 出版时间 ┃分类号┃ 价格 ┃\n");
printf("┣━━━╋━━━━━╋━━━━━╋━━━━━╋━━━━━━╋━━━╋━━━━┫\n");
/*指针从头节点开始移动，遍历至尾结点，依次输出图书信息*/
while(p->next!= NULL)
{
p=p->next;
printf("┃%-6.6s┃%-10.10s┃%-10.10s┃%-10.10s┃%-12.12s┃%-6.6s┃%.2f ┃\n",p->loginnum,p->bookname,p->author,p->publisher,p->pbtime,p->classfy,p->price); /*循环输出表格*/
}
printf("┗━━━┻━━━━━┻━━━━━┻━━━━━┻━━━━━━┻━━━┻━━━━┛\n");
printf("\n");
}

/*修改操作*/
void info_change(struct books_list * head)
{
struct books_list * p;
int panan=0; /*此变量用于判断是否找到书目*/
char temp[20];
p=head;
printf("请输入要修改的书名:");
scanf("%s",temp);
while(p->next!= NULL)
{
p=p->next;
if(strcmp(p->bookname,temp)==0)
{
printf("\n 请输入图书登陆卡号:");
fflush(stdin);
scanf("%s",p->loginnum);
printf("\n 请输入图书书名:");
fflush(stdin);
scanf("%s",p->bookname);
printf("\n 请输入图书作者名:");
fflush(stdin);
scanf("%s",p->author);
printf("\n 请输入图书出版社:");
fflush(stdin);
scanf("%s",p->publisher);
printf("\n 请输入图书出版时间:");
fflush(stdin);
scanf("%s",p->pbtime);
printf("\n 请输入图书分类号:");
fflush(stdin);
scanf("%s",p->classfy);
printf("\n 请输入图书价格:");
fflush(stdin);
scanf("%f",&p->price);
printf("\n");
panan=1;
}
}
if(panan==0)
{
printf("\n ━━━━ 没有图书记录! ━━━━\n\n");
}
return;
}

/*删除操作*/
void DeleteDoc(struct books_list * head)
{
struct books_list *s,*p; /*s为中间变量，p为遍历时使用的指针*/
char temp[20];
int panan; /*此变量用于判断是否找到了书目*/
panan=0;
p=s=head;
printf(" [请输入您要删除的书名]:");
scanf("%s",temp);
/*遍历到尾结点*/
while(p!= NULL)
{
if(strcmp(p->bookname,temp)==0)
{
panan++;
break;
}
p=p->next;
}
if(panan==1)
{
for(;s->next!=p;) /*找到所需删除卡号结点的上一个结点*/
{
s=s->next;
}
s->next=p->next; /*将后一节点地址赋值给前一节点的指针域*/
free(p);
printf("\n ━━━━ 删除成功! ━━━━\n");
}
else /*未找到相应书目*/
{
printf(" 您输入的书目不存在，请确认后输入!\n");
}
return;
}

int main(void)
{
struct books_list * head;
char choice;
head=NULL;
for(;;) /*实现反复输入选择*/
{
printf(" ┏━┓━━━━━━━━━━━━━━━━━━━┏━┓\n");
printf(" ┃ ┃ socat 图书管理系统 ┃ ┃\n");
printf(" ┃ ┗━━━━━━━━━━━━━━━━━━━┛ ┃\n");
printf(" ┃ ●[1]图书信息录入 ┃\n");
printf(" ┃ ┃\n");
printf(" ┃ ●[2]图书信息浏览 ┃\n");
printf(" ┃ ┃\n");
printf(" ┃ ●[3]图书信息查询 ┃\n");
printf(" ┃ ┃\n");
printf(" ┃ ●[4]图书信息修改 ┃\n");
printf(" ┃ ┃\n");
printf(" ┃ ●[5]图书信息删除 ┃\n");
printf(" ┃ ┃\n");
printf(" ┃ ●[6]退出系统 ┃\n");
printf(" ┗━━━━━━━━━━━━━━━━━━━━━━━┛\n");
printf(" 请选择:");
fflush(stdin);
scanf("%c",&choice);
if(choice=='1')
{
if(head==NULL)
{
head=Create_Books_Doc();
}
InsertDoc(head);

}
else if(choice=='2')
{
Print_Book_Doc(head);
}
else if(choice=='3')
{
search_book(head);
}
else if(choice=='4')
{
info_change(head);
}
else if(choice=='5')
{
DeleteDoc(head);
}
else if(choice=='6')
{
printf("\n");
printf(" ━━━━━━━━ 感谢使用图书管理系统 ━━━━━━━━\n");
break;
}
else
{
printf(" ━━━━ 输入错误，请重新输入！━━━━");
break;
}
}
return 0;
}

❸ c语言程序设计图书馆管理系统

你好！看你的要求还是蛮多的，都要实现吗，有个类似的你看看

❹ 求好心高手指导如何用c语言设计一个简单的图书馆图书管理系统

功能简单啊。。就是排序。。添加。。
用一个结构体包含id（就是索引），名字。。然后设计他的添加功能，添加就是把结构体的信息存到文件中。。索引就是排序就完了

❺ C语言课程设计 图书借阅管理系统

首先要设计一个结构体存放借阅系统中包含的信息名，如书目，类型，数量等，然后设计主函数以制定系统的主界面或菜单界面，最后设计各种函数以实现你所设想的各种功能（函数名需要在编译预处理阶段设定，否则无法执行）。具体的例子我给不了，太长了，最少800多行呢！

❻ 用C语言写个图书馆系统

下面可以参考参考！

完整的C语言图书管理系统

#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include "graphics.h"
#include "math.h"
#define m 1
struct data
{ int year;
int month;
int day;
};

struct ReaderNode
{
char num[20];
struct data bro;
struct data back;
};

struct BookNode
{
char title[15];
char writer[15];
int currentnum;
int totalnum;
char brief[30];
struct ReaderNode reader[20];
};

struct TreeNode
{
int n;
struct TreeNode *prt;
int key[2*m];
struct BookNode *rec[2*m];
struct TreeNode *link[2*m+1];

};

struct BookNode *InputNode();
struct TreeNode *mbsearch(struct TreeNode *bth,int x,int *k,int *flag);
struct TreeNode *mbinsert(struct TreeNode *bth);
struct TreeNode *mbdel(struct TreeNode *bth);
void OutputNode(struct TreeNode *bth);
void borrow(struct TreeNode *bth);
void payback(struct TreeNode *bth);
char menu(void);
struct TreeNode *mbsearch(struct TreeNode *bth,int x,int *k,int *flag)
{
struct TreeNode *p,*q;
p=bth; *flag=0; q=p;
while( (p!=NULL) && (*flag==0) )
{
*k=1;q=p;
while( (*k < q->n) && ( q->key[*k-1] < x) ) *k=*k+1;
if( q->key[*k-1]==x) *flag=1;
else if( ( *k==q->n ) && ( q->key[*k-1] < x) ) {p=q->link[*k];p->prt=q;}
else { p=q->link[*k-1]; p->prt=q;*k=*k-1;}
}
return(q);
}

struct TreeNode *mbinsert(struct TreeNode *bth)
{
int flag,j,k,t;
int y,x,z;
struct TreeNode *p,*q,*u,*s;
struct BookNode *r,*l;
clrscr();
printf("\n\tPlease input the book you want to insert: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==1)
{

printf("\n\tHas %d this kind of book,do you want to add another?(y/n)\n",(q->rec[k-1])->totalnum);
z=getch();
if(z=='y'||z=='Y')
{
(q->rec[k-1])->totalnum++; (q->rec[k-1])->currentnum++;
printf("\n\tNow total has %d this kind of book,",(q->rec[k-1])->totalnum);
printf("\n\tand current has %d in the library.",(q->rec[k-1])->currentnum);
}
return(bth);
}
r=InputNode(bth);
if(bth==NULL)
{
bth=p=(struct TreeNode *)malloc(sizeof(struct TreeNode));
p->n=1; p->key[0]=x; p->rec[0]=r;p->prt=NULL;
for(j=1;j<=2*m+1;j++) p->link[j-1]=NULL;
return(p);
}

p=NULL; t=0;
while(t==0)
{
if(k==q->n) {y=x;l=r;u=p;}
else
{
y=q->key[q->n-1]; l=q->rec[q->n-1];u=q->link[q->n];
for(j=(q->n)-1; j>=k+1; j--)
{
q->key[j]=q->key[j-1];q->rec[j]=q->rec[j-1];q->link[j+1]=q->link[j];
}
q->key[k]=x;q->rec[k]=r;q->link[k+1]=p;
if(p!=NULL) p->prt=q;
}

if(q->n<2*m)
{
q->n=(q->n)+1;
t=1;
q->key[(q->n)-1]=y; q->rec[(q->n)-1]=l; q->link[q->n]=u;
if(u!=NULL) u->prt=q;
}
else
{
p=(struct TreeNode *)malloc(sizeof(struct TreeNode));
p->n=m; q->n=m; p->prt=q->prt;
x=q->key[m];r=q->rec[m];
for(j=1;j<=m-1;j++)
{
p->key[j-1]=q->key[m+j];p->rec[j-1]=q->rec[m+j];p->link[j-1]=q->link[m+j];
if(q->link[m+j]!=NULL) (q->link[m+j])->prt=p;

}

p->link[m-1]=q->link[2*m];
p->link[m]=u;
p->key[m-1]=y;
p->rec[m-1]=l;

if(u!=NULL) u->prt=p;
for(j=m+2;j<=2*m+1;j++)
{
q->link[j-1]=NULL;p->link[j-1]=NULL;
}

if(q->prt==NULL)
{
s=(struct TreeNode *)malloc(sizeof(struct TreeNode));
s->key[0]=x; s->rec[0]=r;
s->link[0]=q; s->link[1]=p;
s->n=1; s->prt=NULL; q->prt=s; p->prt=s;
for(j=3;j<=2*m+1;j++) s->link[j-1]=NULL;
bth=s; t=1;
}
else
{
q=q->prt; k=1;
while((k<=q->n)&&(q->key[k-1]<x)) k=k+1;
k=k-1;
}
}
}
return(bth);
}
struct TreeNode *mbdel(struct TreeNode *bth)
{
int flag,j,k,t;
int x,y;
struct TreeNode *u,*s,*p,*q;
struct BookNode *r,*l;
clrscr();
printf("\n\tPlease input the book you want to delete: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==0) { printf("\n\tThe book is not exist!\n"); return(bth);}
p=q->link[k];
if(p!=NULL)
{
while(p->link[0]!=NULL) p=p->link[0];
q->key[k-1]=p->key[0];
q->rec[k-1]=p->rec[0];
k=1;q=p;
}

for(j=k;j<=q->n-1;j++)
{
q->key[j-1]=q->key[j];
q->rec[j-1]=q->rec[j];
}
q->n=q->n-1;

while ((q!=bth)&&(q->n<m))
{
p=q->prt;j=1;
while(p->link[j-1]!=q) j=j+1;
if((j<=p->n)&&((p->link[j])->n>m))
{
s=p->link[j];
y=s->key[0];
l=s->rec[0];
u=s->link[0];
for(k=1;k<=s->n-1;k++)
{
s->key[k-1]=s->key[k];
s->rec[k-1]=s->rec[k];
s->link[k-1]=s->link[k];
}
s->link[s->n-1]=s->link[s->n];
s->link[s->n]=NULL;
s->n=s->n-1; q->n=q->n+1;
q->key[q->n-1]=p->key[j-1];
q->rec[q->n-1]=p->rec[j-1];
q->link[q->n]=u;
p->key[j-1]=y;
p->rec[j-1]=l;
if(u!=NULL) u->prt=q;
}
else if((j>1)&&((p->link[j-2])->n>m))
{
s=p->link[j-2];
q->n=q->n+1;
q->link[q->n]=q->link[q->n-1];

for(k=q->n-1;k>=1;k--)
{
q->key[k]=q->key[k-1];
q->rec[k]=q->rec[k-1];
q->link[k]=q->link[k-1];
}
q->key[0]=p->key[j-2];
q->rec[0]=p->rec[j-2];
u=s->link[s->n];
q->link[0]=u;
if(u!=NULL) u->prt=q;
p->key[j-2]=s->key[s->n-1];
p->rec[j-2]=s->rec[s->n-1];
s->link[s->n]=NULL;
s->n=s->n-1;
}

else
{
if(j==p->n+1)
{ q=p->link[j-2]; s=p->link[j-1]; j=j-1;}
else s=p->link[j];
q->key[q->n]=p->key[j-1];
q->rec[q->n]=p->rec[j-1];
t=q->n+1;
for(k=1;k<=s->n;k++)
{ q->key[t+k-1]=s->key[k-1];
q->rec[t+k-1]=s->rec[k-1];
u=s->link[k-1];
q->link[t+k-1]=u;
if(u!=NULL) u->prt=q;
}
u=s->link[s->n]; q->link[t+s->n]=u;
if(u!=NULL) u->prt=q;
q->n=2*m;
free(s);
for(k=j;k<=p->n-1;k++)
{
p->key[k-1]=p->key[k];
p->rec[k-1]=p->rec[k];
p->link[k]=p->link[k+1];
}
p->n=p->n-1; s=q; q=p;
}
}
if((q==bth)&&(q->n==0))
{ free(bth); bth=s; bth->prt=NULL;
if(s->n==0) {bth=NULL; free(s); }
}
printf("\n\tThe book has been delete !");
return(bth);
}
struct BookNode *InputNode()
{
struct BookNode *p;
int i;
p=(struct BookNode *)malloc(sizeof(struct BookNode));
clrscr();
fflush(stdin);
printf("\n\tInput the title: ");
gets(p->title);
printf("\n\tInput the writer: ");
gets(p->writer);
printf("\n\tInput the book current amount: ");
scanf("%d",&p->currentnum);
printf("\n\tInput the book total amount: ");
scanf("%d",&p->totalnum);
fflush(stdin);
printf("\n\tInput the book brief instruction: ");
gets(p->brief);
for(i=0;i<20;i++)
(p->reader[i]).num[0]='\0';
return(p);
}
void OutputNode(struct TreeNode *bth)
{
struct TreeNode *q;
struct BookNode *p;
int k;
int x;
int flag;
clrscr();
printf("\n\tPlease input the book you want to search: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==1)
{
p=q->rec[k-1];
printf("\n\tTitle: %s",p->title);
printf("\n\tWriter: %s",p->writer);
printf("\n\tCurrentAmount: %d",p->currentnum);
printf("\n\tTotalAmount: %d",p->totalnum);
printf("\n\tBriefIntroction: %s\n",p->brief);
}
else printf("\n\tThis book is not exist!");
}
void borrow(struct TreeNode *bth)
{
struct TreeNode *q;
struct BookNode *p;
struct ReaderNode *r;
int i,k, x, flag,t;
clrscr();
printf("\n\tPlease input the book you want to borrow: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==1)
{
p=q->rec[k-1];
printf("\n\tDo you want this book ?(y/n)");
printf("\n\tTitle: %s",p->title);
printf("\n\tWriter: %s",p->writer);
printf("\n\tCurrentAmount: %d",p->currentnum);
printf("\n\tTotalAmount: %d",p->totalnum);
printf("\n\tBriefIntroction: %s",p->brief);
t=getch();
if(t=='y'||t=='Y')
{
if( (p->currentnum)==0) printf("\n\tSorry,this book has all borrow out...");
else
{
clrscr();
for(i=0;i<20;i++) if( (p->reader[i]).num[0]=='\0') break;
printf("\n\tPlease input your certificate number: ");
scanf("%s",(p->reader[i]).num);
printf("\n\tPlease input the borrow data: ");
printf("\n\tYear: ");
scanf("%d",&((p->reader[i]).bro.year));
printf("\tMonth: ");
scanf("%d",&((p->reader[i]).bro.month));
printf("\tDay: ");
scanf("%d",&((p->reader[i]).bro.day));

printf("\n\tPlease input the payback data: ");
printf("\n\tYear: ");
scanf("%d",&((p->reader[i]).back.year));
printf("\tMonth: ");
scanf("%d",&((p->reader[i]).back.month));
printf("\tDay: ");
scanf("%d",&((p->reader[i]).back.day));

p->currentnum--;
printf("\n\tYou have borrow the book.");}
}

}
else printf("\n\tThis book is not exist!");
}
void payback(struct TreeNode *bth)
{
struct TreeNode *q;
struct BookNode *p;
int i,k, x, flag,t,j;
int year,month,day,d;
float pay;
char temp[20];
clrscr();
printf("\n\tPlease input the book you want to payback: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==1)
{
p=q->rec[k-1];
printf("\n\tDo you want to payback this book ?(y/n)");
printf("\n\tTitle: %s",p->title);
printf("\n\tWriter: %s",p->writer);
printf("\n\tCurrentAmount: %d",p->currentnum);
printf("\n\tTotalAmount: %d",p->totalnum);
printf("\n\tBriefIntroction: %s",p->brief);
t=getch();
if(t=='y'||t=='Y')
{
if( (p->currentnum) >=(p->totalnum) )
printf("\n\tYou want to offer a more book ??\n");
else
{
clrscr();
printf("\n\tPlease input your certificate number: ");
scanf("%s",temp);
j=0;
for(i=0;i<20;i++)
{
if(! (strcmp(temp,(p->reader[i]).num))) {j=1;break;}
}
if(j==0) {printf("\n\tYou haven't borrow this book.");return;}
printf("\n\tToday is:");
printf("\n\tYear: ");
scanf("%d",&year);
printf("\tMonth: ");
scanf("%d",&month);
printf("\tDay: ");
scanf("%d",&day);

d=0;
if(year<(p->reader[i]).back.year) d=1;
if(year<=(p->reader[i]).back.year && month<(p->reader[i]).back.month) d=1;
if(year<=(p->reader[i]).back.year && month<=(p->reader[i]).back.month && day<(p->reader[i]).back.day) d=1;
if(d==0)
{
clrscr();
pay=(year-(p->reader[i]).back.year)*365+(month-(p->reader[i]).back.month)*30+(day-(p->reader[i]).back.day);
printf("\n\tYou borrow this book is in %d-%d-%d",(p->reader[i]).bro.year,(p->reader[i]).bro.month,(p->reader[i]).bro.day);
printf("\n\tYou should pay it back in %d-%d-%d",(p->reader[i]).back.year,(p->reader[i]).back.month,(p->reader[i]).back.day);
printf("\n\tToday is %d-%d-%d",year,month,day);
printf("\n\n\tSo you have go out the payback day");
printf("\n\tYou have to pay %2.1f Yuan.",0.1*pay);
}
(p->reader[i]).num[0]='\0';
p->currentnum++;
printf("\n\tYou have payback the book.");
}
}

}
else printf("\n\tYou want to payback an inexistence book ???");

}
donghua()
{int graphdriver=VGA;
int graphmode=VGAHI;
int i,j;
registerbgidriver(EGAVGA_driver);
initgraph(&graphdriver,&graphmode,"");
clrscr();

for(i=0;i<=150;i+=5)
{setcolor(i);
textbackground(RED);
settextstyle(0,0,2);
outtextxy(100,i+140,"Liberary management System");
delay(10000000);
clrscr();
}
setcolor(RED);
outtextxy(50,200,"Loading");
delay(100000000000);
outtextxy(50,200,"Loading.");
delay(100000000000);
outtextxy(50,200,"Loading..");
delay(100000000000);
outtextxy(50,200,"Loading...");
delay(100000000000);
outtextxy(50,200,"Loading....");
delay(100000000000);
outtextxy(50,200,"Loading.....");
delay(100000000000);
outtextxy(50,200,"Loading......");
delay(100000000000);
outtextxy(50,200,"Loading.......");
delay(100000000000);
outtextxy(50,200,"Loading........");
delay(100000000000);
outtextxy(50,200,"Loading.........");
delay(100000000000);
outtextxy(50,200,"Loading..........");
delay(100000000000);
outtextxy(50,200,"Loading...........");
outtextxy(50,200,"Loading............");
delay(100000000000);
for(i=0;i<=10;i++)
delay(100000000000);
clrscr();

}
char menu(void)
{
clrscr();
window(1,1,80,25);
textmode(MONO);
textbackground(BLACK);
textcolor(5);
printf("\n\t ****************************************************");
printf("\n\t ***** Welcome to Liberary management System *****");
printf("\n\t ****************************************************");
printf("\n\t ****************************************************");
printf("\n\t *1.Add a book *");
printf("\n\t ****************************************************");
printf("\n\t *2.Delete a book *");
printf("\n\t ****************************************************");
printf("\n\t *3.Search a book *");
printf("\n\t ****************************************************");
printf("\n\t *4.Borrow a book *");
printf("\n\t ****************************************************");
printf("\n\t *5.Payback a book *");
printf("\n\t ****************************************************");
printf("\n\t *0.exit *");
printf("\n\t ****************************************************");
printf("\n\t please select: ");
return getch();
}
bofangdonghua()
{int graphdriver=VGA;
int graphmode=VGAHI;
int i,j;
char c;
registerbgidriver(EGAVGA_driver);
initgraph(&graphdriver,&graphmode,"");
/*************shi fou bo fang dong hua?**************/
printf:{setcolor(RED);
settextstyle(3,0,5);
outtextxy(100,30,"bo fang dong hua?");
outtextxy(150,80,"Yes");
outtextxy(300,80,"No");
c=getch();
if(c=='Y'||c=='y')
{donghua();
menu();
}
else
if(c=='N'||c=='n')
menu();
else
{setcolor(GREEN);
settextstyle(3,0,8);
outtextxy(200,240,"Error!");
delay(10000000000);
clrscr();
goto printf;
}
}
/**************************************/

}

void main()
{
char c,t;
int x;
int k,flag,p=1;
struct TreeNode *bth=NULL;

bofangdonghua();

while(1)
{
c=menu();
putch(c);
getch();
switch(c)
{
case '1': bth=mbinsert(bth);

break;

case '2': bth=mbdel(bth);

break;

case '3': OutputNode(bth);
break;

case '4': borrow(bth);
break;

case '5': payback(bth);
break;

case '0': clrscr();
printf("\n\tDo you want to return ?(y/n)");
t=getch();
if(t=='y'||t=='Y') exit(0);
break;
defult :break;
}
printf("\n\tPress any key to the main menu....");
getch();
}
}

❼ C语言编程（图书馆管理系统）

针对你 de 题目C语言编程（图书馆管理系统），
可以为你提供 1 份适用于初学者 de 代码,
有进 1 步需求，可以我们联系,
给我留 1 个你 de 问题和Email,
有时间可以帮你，肯定救急,
使用网络_Hi给我留言,

此回复针对所有来访者和需求者有效,

ES:\\

❽ c语言课程设计:图书馆系统

#include<stdio.h>
#include<string.h>
#include<conio.h>
#include<stdlib.h>
#define N sizeof(struct book)
#define PT "%-5d %10s %6s %6s %8s %3d \n",p->num,p->name,p->where,p->author,p->pub,p->count
struct book /*图书信息*/
{
int num; /*书号*/
char name[10]; /*书名*/
char where[10]; /*所在书库*/
char author[15]; /*作者*/
char pub[20]; /*出版社*/
int count; /*数量*/
struct book *next;
};
/*输出模块*/
void print(struct book *p0)
{
struct book *p;
p=p0->next;
printf("\n\n\t\t^^^^^^^^^^^^^^图书信息表^^^^^^^^^^^^^^");
printf("\n\n图书编号---图书名称---所在书库----作者----出版社---数量\n");
while(p!=NULL)
{
printf(PT);
p=p->next;
}
getch();
}
/*输入模块*/
struct book *creat()
{
struct book *head,*p1,*p2;
int i=0;
head=p2=(struct book *)malloc(N);
head->next=NULL;
printf("\n\n\t\t录入图书信息");
printf("\n\t---------------------------------------");
while(1)
{ p1=(struct book *)malloc(N);
printf("\n 请输入图书编号(书号为0结束): ");
scanf("%d",&p1->num);
if(p1->num!=0)
{
printf("\n\n书名 所在书库 作者 出版社 图书数量\n");
scanf("%s%s%s%s%d",p1->name,p1->where,p1->author,p1->pub,&p1->count);
p2->next=p1;
p2=p1;
i++;
}
else
break;

}
p2->next=NULL;
free(p1);
printf("\n\t\t----------------------------------------");
printf("\n\t\t %d 种书录入完毕",i);
getch();
return head;
}
/*查找模块*/
void find(struct book *p0)
{
char name[10];
int flag=1;
struct book *p;
p=p0->next;
printf("请输入要查找的书名：\n");
scanf("%s",name);
for(p=p0;p;p=p->next)
if(strcmp(p->name,name)==0)
{
printf("\n\n图书编号---图书名称---所在书库----作者----出版社---数量\n");
printf(PT);
flag=0;
break;
}
if(flag) printf("\n 暂无此图书信息\n");
getch();

}
/*删除模块*/
void del(struct book *p0)
{
char name[10];
int flag=1;
struct book *p;
p=p0;
printf("请输入要删除的书名：\n");
scanf("%s",name);
while(p!=NULL)
{
if(strcmp(p->name,name)==0)
{
p0->next=p->next; /*后续节点连接到前驱节点之后*/
free(p);
printf("\t该书资料已删除.");
flag=0;
break;
}
p0=p;
p=p->next;
}
if(flag) printf("\n\t无此图书信息。");
getch();

}
/*增加模块*/
void insert(struct book *p0)
{
struct book *p;
p=(struct book *)malloc(N);
while(1)
{
printf("\n 请输入要增加的图书编号(书号为0 退出): ");
scanf("%d",&p->num);
if(p->num!=0)
{
if(p0->next!=NULL&&p0->next->num==p->num) /*找到重号*/
{
p=p->next;
free(p);
printf("\t该书已存在");
}
else
{printf("\n\n书名 所在书库 作者 出版社 图书数量\n");
scanf("%s%s%s%s%d",p->name,p->where,p->author,p->pub,&p->count);
p->next=p0->next;
p0->next=p;
printf("\t已成功插入.");
}
}
else
break;

}
getch();
}
/*修改模块*/
void modify(struct book *p0)
{
char name[10];
int flag=1;
int choice;
struct book *p;
p=p0->next;
printf("请输入要修改的书名：\n");
scanf("%s",name);
while(p!=NULL&&flag==1)
{
if(strcmp(p->name,name)==0)
{
printf("\n\t请选择要修改的项：");
printf("\n\t 1.修改图书编号\n");
printf("\n\t 2.修改图书所在书库\n");
printf("\n\t 3.修改图书作者\n");
printf("\n\t 4.修改图书出版社\n");
printf("\n\t 5.修改图书库存量\n");
scanf("%d",&choice);
switch(choice)
{
case 1: { printf("\n 请输入新的图书编号:");

scanf("%d",p->num); break;
}
case 2: { printf("\n 请输入新的图书书库:");

scanf("%s",p->where); break;
}
case 3: { printf("\n 请输入新的图书作者:");

scanf("%s",p->author); break;
}
case 4: {printf("\n 请输入新的图书出版社:");

scanf("%s",p->pub); break;
}
case 5: {printf("\n 请输入新的图书库存量:");

scanf("%d",p->count); break;
}
}
printf("\n\t该项已成功修改。\n\t 新的图书信息：");
printf("\n\n图书编号---图书名称---所在书库----作者----出版社---数量\n");
printf(PT);
flag=0;
}
p0=p;
p=p0->next;
}
if(flag) printf("\n\t暂无此图书信息。");
getch();
}
/*读文件*/
struct book *read_file()
{
int i=0;
struct book *p,*p1,*head=NULL;
FILE *fp;
if((fp=fopen("library.txt","rb"))==NULL)
{printf("\n\n\n\n\n \t********库文件不存在，请创建！**********");
getch();
return NULL;
}
head=(struct book *)malloc(N);
p1=head;
head->next=NULL;
printf("\n 已有图书信息：");
printf("\n\n图书编号---图书名称---所在书库----作者----出版社---数量\n");
while(!feof(fp))
{
p=(struct book *)malloc(N); /*开辟空间以存放的取得信息*/
while(fscanf(fp,"%d%s%s%s%s%d",&p->num,p->name,p->where,p->author,p->pub,&p->count)!=EOF)
{
printf(PT);
i++;
}
p1->next=p;
p1=p;
}
p1->next=NULL;
fclose(fp);
printf("\n 共种%d 图书信息",i);
printf("\n\n\n 文件中的信息以正确读出。按任意键返回。");
getch();
return (head);
}
/*保存文件*/
void save(struct book *head)
{
FILE *fp;
struct book *p;
fp=fopen("library.txt","wb"); /*以只写方式打开二进制文件*/
if(fp==NULL) /*打开文件失败*/
{
printf("\n=====>打开文件失败!\n");
getch();
return ;
}
else
for(p=head->next;p!=NULL;p=p->next)
fprintf(fp,"%d %s %s %s %s %d\n",p->num,p->name,p->where,p->author,p->pub,p->count);
fclose(fp);
printf("\n\t保存文件成功!\n");
}
void main()
{
struct book *head=NULL;
int choice=1;
head=read_file();
if(head==NULL)
{
printf("\n\t\t**********");
getch();
head=creat();
}
do
{
system("cls");
printf("\t\t----------Welcome---------\n");
printf("\n\n\t欢迎您，图书管理员.\n");
printf("\n\n\n\n\n");
printf("\n\t 请选择：");
printf("\n\t 1.查询图书信息\n");
printf("\n\t 2.修改图书信息\n");
printf("\n\t 3.增加图书信息\n");
printf("\n\t 4.删除图书信息\n");
printf("\n\t 5.显示所有图书信息\n");
printf("\n\t 0.退出系统\n");
scanf("%d",&choice);
switch(choice)
{
case 1: find(head); break;
case 2: modify(head); break;
case 3: insert(head); break;
case 4: del(head); break;
case 5: print(head); break;
case 0: system("cls");
printf("\n\n\n\n\n\t^^^^^^^^^^谢谢使用，再见^^^^^^^^^^！\n\n");
break;
}
}while(choice!=0);
save(head);
}

❾ 图书馆图书管理系统(c语言)

完整的C语言图书管理系统

#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include "graphics.h"
#include "math.h"
#define m 1
struct data
{ int year;
int month;
int day;
};

struct ReaderNode
{
char num[20];
struct data bro;
struct data back;
};

struct BookNode
{
char title[15];
char writer[15];
int currentnum;
int totalnum;
char brief[30];
struct ReaderNode reader[20];
};

struct TreeNode
{
int n;
struct TreeNode *prt;
int key[2*m];
struct BookNode *rec[2*m];
struct TreeNode *link[2*m+1];

};

struct BookNode *InputNode();
struct TreeNode *mbsearch(struct TreeNode *bth,int x,int *k,int *flag);
struct TreeNode *mbinsert(struct TreeNode *bth);
struct TreeNode *mbdel(struct TreeNode *bth);
void OutputNode(struct TreeNode *bth);
void borrow(struct TreeNode *bth);
void payback(struct TreeNode *bth);
char menu(void);
struct TreeNode *mbsearch(struct TreeNode *bth,int x,int *k,int *flag)
{
struct TreeNode *p,*q;
p=bth; *flag=0; q=p;
while( (p!=NULL) && (*flag==0) )
{
*k=1;q=p;
while( (*k < q->n) && ( q->key[*k-1] < x) ) *k=*k+1;
if( q->key[*k-1]==x) *flag=1;
else if( ( *k==q->n ) && ( q->key[*k-1] < x) ) {p=q->link[*k];p->prt=q;}
else { p=q->link[*k-1]; p->prt=q;*k=*k-1;}
}
return(q);
}

struct TreeNode *mbinsert(struct TreeNode *bth)
{
int flag,j,k,t;
int y,x,z;
struct TreeNode *p,*q,*u,*s;
struct BookNode *r,*l;
clrscr();
printf("\n\tPlease input the book you want to insert: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==1)
{

printf("\n\tHas %d this kind of book,do you want to add another?(y/n)\n",(q->rec[k-1])->totalnum);
z=getch();
if(z=='y'||z=='Y')
{
(q->rec[k-1])->totalnum++; (q->rec[k-1])->currentnum++;
printf("\n\tNow total has %d this kind of book,",(q->rec[k-1])->totalnum);
printf("\n\tand current has %d in the library.",(q->rec[k-1])->currentnum);
}
return(bth);
}
r=InputNode(bth);
if(bth==NULL)
{
bth=p=(struct TreeNode *)malloc(sizeof(struct TreeNode));
p->n=1; p->key[0]=x; p->rec[0]=r;p->prt=NULL;
for(j=1;j<=2*m+1;j++) p->link[j-1]=NULL;
return(p);
}

p=NULL; t=0;
while(t==0)
{
if(k==q->n) {y=x;l=r;u=p;}
else
{
y=q->key[q->n-1]; l=q->rec[q->n-1];u=q->link[q->n];
for(j=(q->n)-1; j>=k+1; j--)
{
q->key[j]=q->key[j-1];q->rec[j]=q->rec[j-1];q->link[j+1]=q->link[j];
}
q->key[k]=x;q->rec[k]=r;q->link[k+1]=p;
if(p!=NULL) p->prt=q;
}

if(q->n<2*m)
{
q->n=(q->n)+1;
t=1;
q->key[(q->n)-1]=y; q->rec[(q->n)-1]=l; q->link[q->n]=u;
if(u!=NULL) u->prt=q;
}
else
{
p=(struct TreeNode *)malloc(sizeof(struct TreeNode));
p->n=m; q->n=m; p->prt=q->prt;
x=q->key[m];r=q->rec[m];
for(j=1;j<=m-1;j++)
{
p->key[j-1]=q->key[m+j];p->rec[j-1]=q->rec[m+j];p->link[j-1]=q->link[m+j];
if(q->link[m+j]!=NULL) (q->link[m+j])->prt=p;

}

p->link[m-1]=q->link[2*m];
p->link[m]=u;
p->key[m-1]=y;
p->rec[m-1]=l;

if(u!=NULL) u->prt=p;
for(j=m+2;j<=2*m+1;j++)
{
q->link[j-1]=NULL;p->link[j-1]=NULL;
}

if(q->prt==NULL)
{
s=(struct TreeNode *)malloc(sizeof(struct TreeNode));
s->key[0]=x; s->rec[0]=r;
s->link[0]=q; s->link[1]=p;
s->n=1; s->prt=NULL; q->prt=s; p->prt=s;
for(j=3;j<=2*m+1;j++) s->link[j-1]=NULL;
bth=s; t=1;
}
else
{
q=q->prt; k=1;
while((k<=q->n)&&(q->key[k-1]<x)) k=k+1;
k=k-1;
}
}
}
return(bth);
}
struct TreeNode *mbdel(struct TreeNode *bth)
{
int flag,j,k,t;
int x,y;
struct TreeNode *u,*s,*p,*q;
struct BookNode *r,*l;
clrscr();
printf("\n\tPlease input the book you want to delete: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==0) { printf("\n\tThe book is not exist!\n"); return(bth);}
p=q->link[k];
if(p!=NULL)
{
while(p->link[0]!=NULL) p=p->link[0];
q->key[k-1]=p->key[0];
q->rec[k-1]=p->rec[0];
k=1;q=p;
}

for(j=k;j<=q->n-1;j++)
{
q->key[j-1]=q->key[j];
q->rec[j-1]=q->rec[j];
}
q->n=q->n-1;

while ((q!=bth)&&(q->n<m))
{
p=q->prt;j=1;
while(p->link[j-1]!=q) j=j+1;
if((j<=p->n)&&((p->link[j])->n>m))
{
s=p->link[j];
y=s->key[0];
l=s->rec[0];
u=s->link[0];
for(k=1;k<=s->n-1;k++)
{
s->key[k-1]=s->key[k];
s->rec[k-1]=s->rec[k];
s->link[k-1]=s->link[k];
}
s->link[s->n-1]=s->link[s->n];
s->link[s->n]=NULL;
s->n=s->n-1; q->n=q->n+1;
q->key[q->n-1]=p->key[j-1];
q->rec[q->n-1]=p->rec[j-1];
q->link[q->n]=u;
p->key[j-1]=y;
p->rec[j-1]=l;
if(u!=NULL) u->prt=q;
}
else if((j>1)&&((p->link[j-2])->n>m))
{
s=p->link[j-2];
q->n=q->n+1;
q->link[q->n]=q->link[q->n-1];

for(k=q->n-1;k>=1;k--)
{
q->key[k]=q->key[k-1];
q->rec[k]=q->rec[k-1];
q->link[k]=q->link[k-1];
}
q->key[0]=p->key[j-2];
q->rec[0]=p->rec[j-2];
u=s->link[s->n];
q->link[0]=u;
if(u!=NULL) u->prt=q;
p->key[j-2]=s->key[s->n-1];
p->rec[j-2]=s->rec[s->n-1];
s->link[s->n]=NULL;
s->n=s->n-1;
}

else
{
if(j==p->n+1)
{ q=p->link[j-2]; s=p->link[j-1]; j=j-1;}
else s=p->link[j];
q->key[q->n]=p->key[j-1];
q->rec[q->n]=p->rec[j-1];
t=q->n+1;
for(k=1;k<=s->n;k++)
{ q->key[t+k-1]=s->key[k-1];
q->rec[t+k-1]=s->rec[k-1];
u=s->link[k-1];
q->link[t+k-1]=u;
if(u!=NULL) u->prt=q;
}
u=s->link[s->n]; q->link[t+s->n]=u;
if(u!=NULL) u->prt=q;
q->n=2*m;
free(s);
for(k=j;k<=p->n-1;k++)
{
p->key[k-1]=p->key[k];
p->rec[k-1]=p->rec[k];
p->link[k]=p->link[k+1];
}
p->n=p->n-1; s=q; q=p;
}
}
if((q==bth)&&(q->n==0))
{ free(bth); bth=s; bth->prt=NULL;
if(s->n==0) {bth=NULL; free(s); }
}
printf("\n\tThe book has been delete !");
return(bth);
}
struct BookNode *InputNode()
{
struct BookNode *p;
int i;
p=(struct BookNode *)malloc(sizeof(struct BookNode));
clrscr();
fflush(stdin);
printf("\n\tInput the title: ");
gets(p->title);
printf("\n\tInput the writer: ");
gets(p->writer);
printf("\n\tInput the book current amount: ");
scanf("%d",&p->currentnum);
printf("\n\tInput the book total amount: ");
scanf("%d",&p->totalnum);
fflush(stdin);
printf("\n\tInput the book brief instruction: ");
gets(p->brief);
for(i=0;i<20;i++)
(p->reader[i]).num[0]='\0';
return(p);
}
void OutputNode(struct TreeNode *bth)
{
struct TreeNode *q;
struct BookNode *p;
int k;
int x;
int flag;
clrscr();
printf("\n\tPlease input the book you want to search: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==1)
{
p=q->rec[k-1];
printf("\n\tTitle: %s",p->title);
printf("\n\tWriter: %s",p->writer);
printf("\n\tCurrentAmount: %d",p->currentnum);
printf("\n\tTotalAmount: %d",p->totalnum);
printf("\n\tBriefIntroction: %s\n",p->brief);
}
else printf("\n\tThis book is not exist!");
}
void borrow(struct TreeNode *bth)
{
struct TreeNode *q;
struct BookNode *p;
struct ReaderNode *r;
int i,k, x, flag,t;
clrscr();
printf("\n\tPlease input the book you want to borrow: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==1)
{
p=q->rec[k-1];
printf("\n\tDo you want this book ?(y/n)");
printf("\n\tTitle: %s",p->title);
printf("\n\tWriter: %s",p->writer);
printf("\n\tCurrentAmount: %d",p->currentnum);
printf("\n\tTotalAmount: %d",p->totalnum);
printf("\n\tBriefIntroction: %s",p->brief);
t=getch();
if(t=='y'||t=='Y')
{
if( (p->currentnum)==0) printf("\n\tSorry,this book has all borrow out...");
else
{
clrscr();
for(i=0;i<20;i++) if( (p->reader[i]).num[0]=='\0') break;
printf("\n\tPlease input your certificate number: ");
scanf("%s",(p->reader[i]).num);
printf("\n\tPlease input the borrow data: ");
printf("\n\tYear: ");
scanf("%d",&((p->reader[i]).bro.year));
printf("\tMonth: ");
scanf("%d",&((p->reader[i]).bro.month));
printf("\tDay: ");
scanf("%d",&((p->reader[i]).bro.day));

printf("\n\tPlease input the payback data: ");
printf("\n\tYear: ");
scanf("%d",&((p->reader[i]).back.year));
printf("\tMonth: ");
scanf("%d",&((p->reader[i]).back.month));
printf("\tDay: ");
scanf("%d",&((p->reader[i]).back.day));

p->currentnum--;
printf("\n\tYou have borrow the book.");}
}

}
else printf("\n\tThis book is not exist!");
}
void payback(struct TreeNode *bth)
{
struct TreeNode *q;
struct BookNode *p;
int i,k, x, flag,t,j;
int year,month,day,d;
float pay;
char temp[20];
clrscr();
printf("\n\tPlease input the book you want to payback: ");
scanf("%d",&x);
q=mbsearch(bth,x,&k,&flag);
if(flag==1)
{
p=q->rec[k-1];
printf("\n\tDo you want to payback this book ?(y/n)");
printf("\n\tTitle: %s",p->title);
printf("\n\tWriter: %s",p->writer);
printf("\n\tCurrentAmount: %d",p->currentnum);
printf("\n\tTotalAmount: %d",p->totalnum);
printf("\n\tBriefIntroction: %s",p->brief);
t=getch();
if(t=='y'||t=='Y')
{
if( (p->currentnum) >=(p->totalnum) )
printf("\n\tYou want to offer a more book ??\n");
else
{
clrscr();
printf("\n\tPlease input your certificate number: ");
scanf("%s",temp);
j=0;
for(i=0;i<20;i++)
{
if(! (strcmp(temp,(p->reader[i]).num))) {j=1;break;}
}
if(j==0) {printf("\n\tYou haven't borrow this book.");return;}
printf("\n\tToday is:");
printf("\n\tYear: ");
scanf("%d",&year);
printf("\tMonth: ");
scanf("%d",&month);
printf("\tDay: ");
scanf("%d",&day);

d=0;
if(year<(p->reader[i]).back.year) d=1;
if(year<=(p->reader[i]).back.year && month<(p->reader[i]).back.month) d=1;
if(year<=(p->reader[i]).back.year && month<=(p->reader[i]).back.month && day<(p->reader[i]).back.day) d=1;
if(d==0)
{
clrscr();
pay=(year-(p->reader[i]).back.year)*365+(month-(p->reader[i]).back.month)*30+(day-(p->reader[i]).back.day);
printf("\n\tYou borrow this book is in %d-%d-%d",(p->reader[i]).bro.year,(p->reader[i]).bro.month,(p->reader[i]).bro.day);
printf("\n\tYou should pay it back in %d-%d-%d",(p->reader[i]).back.year,(p->reader[i]).back.month,(p->reader[i]).back.day);
printf("\n\tToday is %d-%d-%d",year,month,day);
printf("\n\n\tSo you have go out the payback day");
printf("\n\tYou have to pay %2.1f Yuan.",0.1*pay);
}
(p->reader[i]).num[0]='\0';
p->currentnum++;
printf("\n\tYou have payback the book.");
}
}

}
else printf("\n\tYou want to payback an inexistence book ???");

}
donghua()
{int graphdriver=VGA;
int graphmode=VGAHI;
int i,j;
registerbgidriver(EGAVGA_driver);
initgraph(&graphdriver,&graphmode,"");
clrscr();

for(i=0;i<=150;i+=5)
{setcolor(i);
textbackground(RED);
settextstyle(0,0,2);
outtextxy(100,i+140,"Liberary management System");
delay(10000000);
clrscr();
}
setcolor(RED);
outtextxy(50,200,"Loading");
delay(100000000000);
outtextxy(50,200,"Loading.");
delay(100000000000);
outtextxy(50,200,"Loading..");
delay(100000000000);
outtextxy(50,200,"Loading...");
delay(100000000000);
outtextxy(50,200,"Loading....");
delay(100000000000);
outtextxy(50,200,"Loading.....");
delay(100000000000);
outtextxy(50,200,"Loading......");
delay(100000000000);
outtextxy(50,200,"Loading.......");
delay(100000000000);
outtextxy(50,200,"Loading........");
delay(100000000000);
outtextxy(50,200,"Loading.........");
delay(100000000000);
outtextxy(50,200,"Loading..........");
delay(100000000000);
outtextxy(50,200,"Loading...........");
outtextxy(50,200,"Loading............");
delay(100000000000);
for(i=0;i<=10;i++)
delay(100000000000);
clrscr();

}
char menu(void)
{
clrscr();
window(1,1,80,25);
textmode(MONO);
textbackground(BLACK);
textcolor(5);
printf("\n\t ****************************************************");
printf("\n\t ***** Welcome to Liberary management System *****");
printf("\n\t ****************************************************");
printf("\n\t ****************************************************");
printf("\n\t *1.Add a book *");
printf("\n\t ****************************************************");
printf("\n\t *2.Delete a book *");
printf("\n\t ****************************************************");
printf("\n\t *3.Search a book *");
printf("\n\t ****************************************************");
printf("\n\t *4.Borrow a book *");
printf("\n\t ****************************************************");
printf("\n\t *5.Payback a book *");
printf("\n\t ****************************************************");
printf("\n\t *0.exit *");
printf("\n\t ****************************************************");
printf("\n\t please select: ");
return getch();
}
bofangdonghua()
{int graphdriver=VGA;
int graphmode=VGAHI;
int i,j;
char c;
registerbgidriver(EGAVGA_driver);
initgraph(&graphdriver,&graphmode,"");
/*************shi fou bo fang dong hua?**************/
printf:{setcolor(RED);
settextstyle(3,0,5);
outtextxy(100,30,"bo fang dong hua?");
outtextxy(150,80,"Yes");
outtextxy(300,80,"No");
c=getch();
if(c=='Y'||c=='y')
{donghua();
menu();
}
else
if(c=='N'||c=='n')
menu();
else
{setcolor(GREEN);
settextstyle(3,0,8);
outtextxy(200,240,"Error!");
delay(10000000000);
clrscr();
goto printf;
}
}
/**************************************/

}

void main()
{
char c,t;
int x;
int k,flag,p=1;
struct TreeNode *bth=NULL;

bofangdonghua();

while(1)
{
c=menu();
putch(c);
getch();
switch(c)
{
case '1': bth=mbinsert(bth);

break;

case '2': bth=mbdel(bth);

break;

case '3': OutputNode(bth);
break;

case '4': borrow(bth);
break;

case '5': payback(bth);
break;

case '0': clrscr();
printf("\n\tDo you want to return ?(y/n)");
t=getch();
if(t=='y'||t=='Y') exit(0);
break;
defult :break;
}
printf("\n\tPress any key to the main menu....");
getch();
}
}

❿ C语言程序设计的图书管理系统

我们也开始做课程设计了呢~~~ 这是我同学做的：

#include
#include
#include

struct BOOK
{
int id,usr[10],total,store,days[10];
char name[31],author[21];
}books[100];
/*上面是结构体的定义，用于存放书籍及借书的信息。*/

void page_title(char *menu_item)
{
clrscr();
printf(">>> 图 书 管 理 系 统 <<<\n\n- %s -\n\n",menu_item);
}
/*上面是打印页眉的函数，同时通过参数menu_item，可以显示当前的状态。*/

void return_confirm(void)
{
printf("\n按任意键返回……\n");
getch();
}
/*上面是返回前请求确认的函数，以便在返回前观察结果*/

int search_book(void)
{
int n,i;
printf("请输入图书序号:");
scanf("%d",&i);
for(n=0;n<100;n++)
{
if(books[n].id==i)
{
printf("书名:%s\n",books[n].name);
printf("作者:%s\n",books[n].author);
printf("存数:%d of ",books[n].store);
printf("%d\n",books[n].total);
return n;
}
}
printf("\n输入错误或无效图书序号.\n");
return -1;
}
/*上面的函数是在数组中找到图书号匹配的记录，显示其信息并返
回数组下标，如果找不到相应记录则提示错误并返回-1。*/

void book_out(void)
{
int n,s,l,d;
page_title("借阅图书");
if((n=search_book())!=-1&&books[n].store>0)
{
printf("请输入借书证序号:");
scanf("%d",&s);
printf("请输入可借天数:");
scanf("%d",&d);
for(l=0;l<10;l++)
{
if(books[n].usr[l]==0)
{
books[n].usr[l]=s;
books[n].days[l]=d;
break;
}
}
books[n].store--;
}
if(n!=-1&&books[n].store==0) printf("此书已经全部借出.\n");
return_confirm();
}
/*上面是借书的函数，首先调用找书函数*/

void book_in(void)
{
int n,s,l;
page_title("归还图书");
if((n=search_book())!=-1&&books[n].store<books[n].total)
{
printf("借阅者图书证列表:\n");
for(l=0;l<10;l++)
if (books[n].usr[l]!=0)
printf("[%d] - %d天\n",books[n].usr[l],books[n].days[l]);
printf("请输入借书证序号:");
scanf("%d",&s);
for(l=0;l<10;l++)
{
if(books[n].usr[l]==s)
{
books[n].usr[l]=0;
books[n].days[l]=0;
break;
}
}
books[n].store++;
}
if(n!=-1&&books[n].store==books[n].total)
printf("全部入藏.\n");
return_confirm();
}

void book_add(void)
{
int n;
page_title("注册新书");
for(n=0;n<100;n++)
if(books[n].id==0) break;
printf("序号:");
scanf("%d",&books[n].id);
printf("书名:");
scanf("%s",&books[n].name);
printf("作者:");
scanf("%s",&books[n].author);
printf("数量:");
scanf("%d",&books[n].total);
books[n].store=books[n].total;
return_confirm();
}
void book_del(void)
{
int n;
page_title("注销旧书");
if((n=search_book())!=-1) books[n].id=0;
printf("该书已注销.\n");
return_confirm();
}

void main(void)
{
menu: page_title("操作选单");
printf("请用数字键选择操作\n\n");
printf("1 借阅图书\n2 归还图书\n\n");
printf("3 注册新书\n4 注销旧书\n\n");
printf("\n0 退出\n");
switch(getch())
{
case '1' : book_out();break;
case '2' : book_in();break;
case '3' : book_add();break;
case '4' : book_del();break;
case '0' : exit(0);
}
goto menu;
}
{
int n;
page_title("广?症慕");
if((n=search_book())!=-1) books[n].id=0;
printf("乎慕厮广?.\n");
return_confirm();
}

void main(void)
{
menu: page_title("荷恬佥汽");
printf("萩喘方忖囚佥夲荷恬\n\n");
printf("1 処堋夕慕\n2 拷珊夕慕\n\n");
printf("3 广过仟慕\n4 广?症慕\n\n");
printf("\n0 曜竃\n");
switch(getch())
{
case '1' : book_out();break;
case '2' : book_in();break;
case '3' : book_add();break;
case '4' : book_del();break;
case '0' : exit(0);
}
goto menu;
}