【C语言 实现图书管理系统】

语言 实现图书管理系统】"/>

【C语言 实现图书管理系统】

项目 ：C语言实现图书管理系统

编译环境 ：Visual Studio 2019

作者 ：wddkxg

时间 ： 2019

LibraryManagementSystem.cpp

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<conio.h>
#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();
}