用C语言编写图书管理系统

图书管理系统.c

//vc6++环境下调试运行
//思路：定义结构体；定义功能性函数；主函数调用各个功能性函数。
//2019/6/12/21：22
#include
#include
#include
#include
struct book
{
int id;
char name[31];
char author[27];
char publish[31];
int store;
int total;
int usr[10];
int days[10];
}books[100];
main()
{ void page_title(char* menu_item);
void return_confirm();
void book_add();
int book_show();
int book_search();
int book_edit();
int book_del();
void book_out();
void book_in(void);
meum:page_title(“操作菜单”);
printf(“用数字键选择操作\n\n”);
printf("\t\t1 注册新书 \t\t2 显示图书 \n");
printf("\t\t3 查询图书信息 \t\t4 修改图书信息\n");
printf("\t\t5 删除图书\t\t6 借阅图书\n");
printf("\t\t7 归还图书\t\t8 退出系统\n");
printf(“请按数字键：\n”);
switch (getchar())
{
case’1’:book_add(); break;
case’2’:book_show(); break;
case’3’:book_search(); break;
case’4’:book_edit(); break;
case’5’:book_del(); break;
case’6’:book_out(); break;
case’7’:book_in(); break;
case’8’:exit(0);
}
}

void page_title(char* menu_item)
{
printf("\t\t欢迎使用**大学图书管理系统\n\n-%s-%s\n\n", menu_item);
}
void return_confirm()
{
printf("\n按任意键返回……\n");
getchar();
}
void book_add()
{
int i;
system(“cls”);
page_title(“注册新书”);
for (i = 0; i < 100; i++) if (books[i].id == 0)
break;
printf(“序号”);
scanf("%d", &books[i].id);
printf(“书名”);
scanf("%s", &books[i].name);
printf(“作者”);
scanf("%s", &books[i].author);
printf(“出版社”);
scanf("%s", &books[i].publish);
printf(“数量”);
scanf("%d", &books[i].total);
books[i].store = books[i].total;
return_confirm();
}
int book_show()
{
int i, flag = 0;
system(“cls”);
for (i = 0; i < 100; i++)
{
if (strlen(books[i].name) != 0)
{
printf(“序号:%d\t”, books[i].id);
printf(“书名:%d\t”, books[i].name);
printf(“作者:%d\t”, books[i].author);
printf(“出版社;%d\t”, books[i].publish);
printf(“存数:%d\t”, books[i].store);
printf(“总数:%d\t”, books[i].total);
flag = 1;
}
}
if (flag == 0)
printf("\n没有找到相关记录.\n");
return i;
}
int book_search()
{
int n,i,flag=0;
char nam[30];
system(“cls”);
printf(“输入书名”);
scanf("%s",&nam);
for(i=0;i<100;i++)
{
if(strcmp(books[i].name,nam)0)
{
printf(“序号：%d\t”,books[i].id);
printf(“书名：%s\t”,books[i].name);
printf(“作者：%s\t”,books[i].author);
printf(“出版社：%s\t”,books[i].publish);
printf(“存数：%d\t”,books[i].store);
printf(“总数：%d\n”,books[i].total);
n=i;
flag=1;
break;
}
}
if(flag0)
{
printf("\n没有找到相关记录.\n");
return -1;
}
return n;
}
int book_edit()
{
int i, id_change;
system(“cls”);
page_title(“修改图书信息”);
printf(“输入要修改的图书编号：”);
scanf("%d",&id_change);
for (i = 0; i < 100; i++)
{
if (books[i].id == id_change)
{
printf(“修改书名：”);
scanf("%s",books[i].name);
printf(“修改作者：”);
scanf("%s", books[i].author);
printf(“修改出版社名：”);
scanf("%s", books[i].publish);
printf(“修改总数：”);
scanf("%s", books[i].total);
printf(“修改图书信息成功.\n”);
books[i].store = books[i].total;
return i;
}
}
printf("\n没有找到相关记录.\n");
return -1;
}
int book_del()
{
int i, num, j;
system(“cls”);
page_title(“删除图书”);
printf(“输入要删除的书的编号：”);
scanf("%d",&num);
for (i = 0; i < 100; i++)
{
if(books[i].id==num)
for (j = i; j < 100; j++)
{
books[j].id = books[j + 1].id;
strcpy(books[j].name,books[j+1].name);
strcpy(books[j].publish,books[j+1].publish);
printf(“该书已删除.\n”);
return i;
}
}
printf(“没有找到相关记录\n”);
return -1;
}
void book_out()
{
int n, s, i, d;
system(“cls”);
page_title(“借阅图书”);
n = book_search();
if (n != -1 && books[n].store > 0)
{
printf(“请输入借书证序号:”);
scanf("%d", &s);
printf(“输入可借天数：”);
scanf("%d", &d);
for (i = 0; i < 10; i++)
if (books[n].usr[i] == 0)
{
books[n].usr[i] = 0;
books[n].usr[i] = 0;
break;
}
books[n].store–;
}
else if (n != -1 && books[n].store == 0)
printf(“此书已经全部借出.\n”);
else
;
return_confirm();
}
void book_in(void)
{
int n, s, i;
page_title(“归还图书”);
n = book_search();
if (n != -1 && books[n].store < books[n].total)
{
printf(“借阅图书证列表：\n”);
for (i = 0; i < 100; i++) if (books[n].usr[i] != 0)
printf("[%d]-[%d]天\n",books[n].usr[i],books[n].days[i]);
printf(“输入借书证序号：”);
scanf("%d",&s);
for (i = 0; i < 10; i++)
{
if (books[n].usr[i] == s)
{
books[n].usr[i] = 0;
books[n].days[i] = 0;
break;
}
}
books[n].store++;
}
if (n != -1 && books[n].store == books[n].total)
printf(“全部归还.\n”);
else if (n != -1 && books[n].store < books[n].total)
printf(“归还成功.\n”);
else
;
return_confirm();
}
//vs2019环境下调试运行
#include
#include
#include
#include
#pragma warning(disable:4996)
struct book
{
int id;
char name[31];
char author[27];
char publish[31];
int store;
int total;
int usr[10];
int days[10];
}books[100];
main()
{
void page_title(char* menu_item);
void return_confirm();
void book_add();
int book_show();
int book_search();
int book_edit();
int book_del();
void book_out();
void book_in(void);
meum:page_title(“操作菜单”);
printf(“用数字键选择操作\n\n”);
printf("\t\t1 注册新书 \t\t2 显示图书 \n");
printf("\t\t3 查询图书信息 \t\t4 修改图书信息\n");
printf("\t\t5 删除图书\t\t6 借阅图书\n");
printf("\t\t7 归还图书\t\t8 退出系统\n");
printf(“请按数字键：\n”);
switch (getchar())
{
case’1’:book_add(); break;
case’2’:book_show(); break;
case’3’:book_search(); break;
case’4’:book_edit(); break;
case’5’:book_del(); break;
case’6’:book_out(); break;
case’7’:book_in(); break;
case’8’:exit(0);
}
}

void page_title(char* menu_item)
{
printf("\t\t欢迎使用**大学图书管理系统\n\n-%s-%s\n\n", menu_item);
}
void return_confirm()
{
printf("\n按任意键返回……\n");
getchar();
}
void book_add()
{
int i;
system(“cls”);
page_title(“注册新书”);
for (i = 0; i < 100; i++) if (books[i].id == 0)
break;
printf(“序号”);
scanf_s("%d", &books[i].id);
printf(“书名”);
scanf_s("%s", &books[i].name);
printf(“作者”);
scanf_s("%s", &books[i].author);
printf(“出版社”);
scanf_s("%s", &books[i].publish);
printf(“数量”);
scanf_s("%d", &books[i].total);
books[i].store = books[i].total;
return_confirm();
}
int book_show()
{
int i, flag = 0;
system(“cls”);
for (i = 0; i < 100; i++)
{
if (strlen(books[i].name) != 0)
{
printf(“序号:%d\t”, books[i].id);
printf(“书名:%d\t”, books[i].name);
printf(“作者:%d\t”, books[i].author);
printf(“出版社;%d\t”, books[i].publish);
printf(“存数:%d\t”, books[i].store);
printf(“总数:%d\t”, books[i].total);
flag = 1;
}
}
if (flag == 0)
printf("\n没有找到相关记录.\n");
return i;
}
int book_search()
{
int n, i, flag = 0;
char nam[30];
system(“cls”);
printf(“输入书名”);
scanf_s("%s", &nam);
for (i = 0; i < 100; i++)
{
if (strcmp(books[i].name, nam) == 0)
{
printf(“序号：%d\t”, books[i].id);
printf(“书名：%s\t”, books[i].name);
printf(“作者：%s\t”, books[i].author);
printf(“出版社：%s\t”, books[i].publish);
printf(“存数：%d\t”, books[i].store);
printf(“总数：%d\n”, books[i].total);
n = i;
flag = 1;
break;
}
}
if (flag == 0)
{
printf("\n没有找到相关记录.\n");
return -1;
}
return n;
}
int book_edit()
{
int i, id_change;
system(“cls”);
page_title(“修改图书信息”);
printf(“输入要修改的图书编号：”);
scanf_s("%d", &id_change);
for (i = 0; i < 100; i++)
{
if (books[i].id == id_change)
{
printf(“修改书名：”);
scanf_s("%s", books[i].name);
printf(“修改作者：”);
scanf_s("%s", books[i].author);
printf(“修改出版社名：”);
scanf_s("%s", books[i].publish);
printf(“修改总数：”);
scanf_s("%s", books[i].total);
printf(“修改图书信息成功.\n”);
books[i].store = books[i].total;
return i;
}
}
printf("\n没有找到相关记录.\n");
return -1;
}
int book_del()
{
int i, num, j;
system(“cls”);
page_title(“删除图书”);
printf(“输入要删除的书的编号：”);
scanf_s("%d", &num);
for (i = 0; i < 100; i++)
{
if (books[i].id == num)
for (j = i; j < 100; j++)
{
books[j].id = books[j + 1].id;
strcpy(books[j].name, books[j + 1].name);
strcpy(books[j].publish, books[j + 1].publish);
printf(“该书已删除.\n”);
return i;
}
}
printf(“没有找到相关记录\n”);
return -1;
}
void book_out()
{
int n, s, i, d;
system(“cls”);
page_title(“借阅图书”);
n = book_search();
if (n != -1 && books[n].store > 0)
{
printf(“请输入借书证序号:”);
scanf_s("%d", &s);
printf(“输入可借天数：”);
scanf_s("%d", &d);
for (i = 0; i < 10; i++)
if (books[n].usr[i] == 0)
{
books[n].usr[i] = 0;
books[n].usr[i] = 0;
break;
}
books[n].store–;
}
else if (n != -1 && books[n].store == 0)
printf(“此书已经全部借出.\n”);
else
;
return_confirm();
}
void book_in(void)
{
int n, s, i;
page_title(“归还图书”);
n = book_search();
if (n != -1 && books[n].store < books[n].total)
{
printf(“借阅图书证列表：\n”);
for (i = 0; i < 100; i++) if (books[n].usr[i] != 0)
printf("[%d]-[%d]天\n", books[n].usr[i], books[n].days[i]);
printf(“输入借书证序号：”);
scanf_s("%d", &s);
for (i = 0; i < 10; i++)
{
if (books[n].usr[i] == s)
{
books[n].usr[i] = 0;
books[n].days[i] = 0;
break;
}
}
books[n].store++;
}
if (n != -1 && books[n].store == books[n].total)
printf(“全部归还.\n”);
else if (n != -1 && books[n].store < books[n].total)
printf(“归还成功.\n”);
else
;
return_confirm();
}