应用程序设计：图书管理系统模板（链表+文件）
概述
主要包括图书的库存信息，每一本书的借阅信息以及每一个人的借书信息。
系统功能：
（1）借阅资料管理（对相关资料进行添加，删除，修改，查询等操作）
（2）借阅管理（包括借出操作，还书操作）
（3）读者管理（读者等级：可分为教师，学生。并定义每类读者可借书数量）
（4）统计分析（当前借阅和相关资料状态。统计分析借阅排行榜，资料状态统计，借阅统计，显示所有至当日到期未还书信息等功能分析）
如果觉得链表麻烦的话可以使用（数组+文件）：https://blog.csdn.net/qq_30253757/article/details/85341155
管理员用户名和密码都是admin
#include <iostream>
#include <cstdio>
#include <cstring>
#include <string>
#include <cmath>
#include <cstring>
#include <windows.h>
#include <ctime>
#include <cstdlib>
using namespace std;
typedef struct books //书籍编号————（作者，名称，出版时间，价格）与书籍编号一一对应，否则为新一类书
{ //数量
int book_id;
char author[50], book_name[50];
int time, count;
double price;
struct books *next;
} BOOK, *Pbook;
typedef struct have_been_borrowed //已借出的图书信息，书籍编号，借书编号，借书数量，书名，所借人的账号名
{
int book_id;
int borrowed_book_id;
int count;
char book_name[50];
char student_id[50];
struct have_been_borrowed *next;
} BORROW, *Pborrow;
typedef struct users //用户信息：用户id，账户名，密码，所借书的上限
{
long long int user_id;
char user_name[50];
char passwd[50];
int book_limit;
int job;
struct users *next;
} USERS, *Pusers;
Pusers user_now = NULL;
/**************************以下为函数声明**********************************/
void user_error(); //无用户信息的错误提示
int read_books_information_to_file(Pbook head, Pborrow head2, Pusers head3); //文件的读取
void welcome(); //欢迎界面
void null_error(); //图书库为空的报错信息
void list_borrow(Pborrow head); //打印已借图书信息
void addbook(struct books *head); //添加书籍信息
void list(Pbook head); //打印所有书籍信息
int search(Pbook head); //搜寻书籍信息
int modify(Pbook p); //搜寻结束后可进行查找
int del(Pbook before, Pbook will_be_del); //删除该图书信息
int borrow(Pbook head, Pborrow borrowed); //借书功能
void return_book_list(Pborrow head, Pbook origin); //还书的列表（便于控制函数的调用）
int return_book(Pborrow head_list, Pbook origin); //还书功能
int return_book_by_student_id(Pborrow head, Pbook origin); //通过学号还书
void add_borrow(Pbook d, Pborrow head, int a, int b, int c, char name[], char book_name[]); //已借的书的添加
void borrowor(Pbook head, Pborrow borrowed); //借书菜单
void del_user(Pusers head); //删除用户
int add_users(Pusers head); //增加用户
void user_list(Pusers head); //打印所有用户信息
int user_manage(Pusers head); //用户管理主列表
int save_books_information_to_file(Pbook head, Pborrow head2, Pusers head3); //文件的保存
/**************************以上为函数声明**********************************/
/***************************图书基础功能***********************************/
int read_books_information_to_file(Pbook head, Pborrow head2, Pusers head3)
{
FILE *p = fopen("books_information.dat", "r"), *q = fopen("borrowed_books.dat", "r");
FILE *u = fopen("users_information.dat", "r");
if (p == NULL || q == NULL || u == NULL)
{
cout << "文件不存在。。。" << endl
<< "已重建相关文件" << endl;
system("pause");
system("cls");
return 1;
}
Pbook books_head = head;
Pborrow borrowed_head = head2;
Pusers users_head = head3;
int a, b, k;
char name[50];
char author[50];
double price;
while (fscanf(p, "%d%s%s%d%lf%d", &a, name, author, &k, &price, &b) != EOF)
{
Pbook before = (Pbook)malloc(sizeof(BOOK));
before->book_id = a;
strcpy(before->book_name, name);
strcpy(before->author, author);
before->count = b;
before->time = k;
before->price = price;
books_head->next = before;
before->next = NULL;
books_head = before;
}
int c, d, e;
char borrow_name[50];
char student_id[50];
while (fscanf(q, "%d%s%d%d%s", &c, borrow_name, &d, &e, &student_id) != EOF)
{
Pborrow after = (Pborrow)malloc(sizeof(BORROW));
after->book_id = c;
strcpy(after->book_name, borrow_name);
after->borrowed_book_id = d;
after->count = e;
strcpy(after->student_id, student_id);
borrowed_head->next = after;
after->next = NULL;
borrowed_head = after;
}
long long user_id;
char user_name[50];
char passwd[50];
int book_limit;
int job;
while (fscanf(u, "%lld%s%s%d%d", &user_id, user_name, passwd, &book_limit,&job) != EOF)
{
Pusers english = (Pusers)malloc(sizeof(USERS));
english->user_id = user_id;
strcpy(english->user_name, user_name);
strcpy(english->passwd, passwd);
english->book_limit = book_limit;
english->job=job;
users_head->next = english;
english->next = NULL;
users_head = english;
}
fclose(p);
fclose(q);
fclose(u);
return 0;
}
int save_books_information_to_file(Pbook head, Pborrow head2, Pusers head3)
{
system("cls");
FILE *p = fopen("books_information.dat", "w");
FILE *bore = fopen("borrowed_books.dat", "w");
FILE *u = fopen("users_information.dat", "w");
if (p == NULL )
{
cout << "打开文件失败！！！，请重试。。。" << endl;
return 1;
}
if ( bore == NULL)
{
cout << "打开文件失败！！！，请重试。。。" << endl;
return 1;
}
if ( u == NULL)
{
cout << "打开文件失败！！！，请重试。。。" << endl;
return 1;
}
Pbook q = head->next;
Pborrow w = head2->next;
Pusers eng = head3->next;
cout << "正在写入文件，请稍后。。。" << endl;
Sleep(1500);
while (q != NULL)
{
fprintf(p, "%d %s %s %d %f %d\n", q->book_id, q->book_name, q->author, q->time, q->price, q->count);
q = q->next;
}
while (w != NULL)
{
fprintf(bore, "%d %s %d %d %s\n", w->book_id, w->book_name, w->borrowed_book_id, w->count, w->student_id);
w = w->next;
}
while (eng != NULL)
{
fprintf(u, "%lld %s %s %d %d\n", eng->user_id, eng->user_name, eng->passwd, eng->book_limit,eng->job);
eng = eng->next;
}
system("cls");
cout << "写入完成。请稍后。。。" << endl;
fclose(p);
fclose(bore);
fclose(u);
return 0;
}
void list_borrow(Pborrow head)
{
if (head->next == NULL)
{
system("cls");
cout << "数据库无借阅信息" << endl;
cout << "请按回车退出 。。。" << endl;
getchar();
getchar();
return;
}
system("cls");
for (int i = 0; i < 56; i++)
printf("*");
printf("\n");
printf("* %11s", "借阅编号");
printf("%11s", "图书编号");
printf("%10s", "借阅数量");
printf("%18s *\n", "借阅者账号");
Pborrow p = head->next;
while (p != NULL)
{
printf("* %11d", p->borrowed_book_id);
printf("%11d", p->book_id);
printf("%10d", p->count);
printf("%18s *\n", p->student_id);
p = p->next;
}
for (int i = 0; i < 56; i++)
printf("*");
cout << endl
<< "输入回车继续。。。" << endl;
getchar();
getchar();
system("cls");
}
void addbook(struct books *head)
{
int id, time, count;
char name[50], author[50];
double price;
struct books *q = head;
while (1)
{
system("cls");
cout << "请输入书籍编号" << endl;
cin >> id;
cout << "请输入书籍名称" << endl;
scanf("%s", name);
cout << "请输入作者名字" << endl;
scanf("%s", author);
cout << "请输入出版时间" << endl;
cin >> time;
cout << "请输入书籍价格" << endl;
cin >> price;
cout << "请输入书籍数量" << endl;
cin >> count;
while (q->next != NULL)
{
if (id == q->next->book_id && strcmp(name, q->next->book_name) == 0 && strcmp(author, q->next->author) == 0)
{
if (time == q->next->time && price == q->next->price)
{
q->next->count += count;
system("cls");
cout << "图书添加成功。。。" << endl;
Sleep(1000);
system("cls");
break;
}
}
q = q->next;
}
if (q->next == NULL)
{
struct books *p;
p = (struct books *)malloc(sizeof(struct books));
q->next = p;
p->next = NULL;
p->book_id = id;
p->count = count;
p->price = price;
p->time = time;
strcpy(p->book_name, name);
strcpy(p->author, author);
cout << "图书添加成功。。。" << endl;
Sleep(1000);
}
system("cls");
int in;
cout << "是否要继续？" << endl
<< "*****************" << endl
<< "* 1.继续 *" << endl
<< "* 0.结束 *" << endl
<< "*****************" << endl;
cin >> in;
if (in == 0)
return;
}
}
void null_error()
{
system("cls");
cout << "数据库无图书信息，请先添加图书信息" << endl;
cout << "请按回车退出搜索。。。" << endl;
system("pause");
}
void list(Pbook head)
{
if (head->next == NULL)
{
null_error();
return;
}
system("cls");
for (int i = 0; i < 70; i++)
printf("*");
printf("\n");
printf("* %8s", "图书编号");
printf("%14s", "图书名称");
printf("%10s", "作者");
printf("%14s", "时间");
printf("%10s", "价格");
printf("%10s *\n", "数量");
Pbook p = head->next;
while (p != NULL)
{
printf("* %8d", p->book_id);
printf("%14s", p->book_name);
printf("%10s", p->author);
printf("%14d", p->time);
printf("%10.2f", p->price);
printf("%10d *\n", p->count);
p = p->next;
}
for (int i = 0; i < 70; i++)
printf("*");
cout << endl
<< "输入回车继续。。。" << endl;
system("pause");
system("cls");
}
/*************************图书查找，修改，删除功能区*******************************/
int search(Pbook head)
{
int want_to_search, flag;
while (1)
{
Pbook p = head->next, before = head;
flag = 0;
if (head->next == NULL)
{
null_error();
return 0;
}
system("cls");
cout << "请输入要搜索的图书编号：";
cin >> want_to_search;
system("cls");
cout << "正在寻找，请稍后。。。";
while (p != NULL)
{
if (p->book_id == want_to_search)
{
system("cls");
flag = 1;
break;
}
before = p;
p = p->next;
}
if (flag == 0)
{
system("cls");
cout << "未查找到相应图书信息\n";
cout << "接下来要做什么？" << endl
<< "\t1.继续查找" << endl
<< "\t0.结束" << endl;
int in;
cin >> in;
if (in == 1)
continue;
else
return 0;
}
else
{
int in;
system("cls");
cout << "已找到相关图书，接下来要做什么？" << endl;
while (1)
{
int flag1 = 0;
cout << "******************************" << endl;
cout << "* 1.打印相关图书信息 *" << endl;
cout << "* 2.对相关图书进行修改 *" << endl;
cout << "* 3.删除该图书信息 *" << endl;
cout << "* 4.继续查找 *" << endl;
cout << "* 0.退出 *" << endl;
cout << "******************************" << endl;
cin >> in;
switch (in)
{
case 1:
system("cls");
for (int i = 0; i < 70; i++)
printf("*");
printf("\n* %8s", "图书编号");
printf("%14s", "图书名称");
printf("%10s", "作者");
printf("%14s", "时间");
printf("%10s", "价格");
printf("%10s *\n", "数量");
printf("* %8d", p->book_id);
printf("%14s", p->book_name);
printf("%10s", p->author);
printf("%14d", p->time);
printf("%10.2f", p->price);
printf("%10d *\n", p->count);
for (int i = 0; i < 70; i++)
printf("*");
cout << endl
<< "输入以回车继续。。。";
getchar();
getchar();
system("cls");
flag = 0;
break;
case 2:
if (modify(p) == 1)
{
flag1 = 1;
break;
}
else
{
flag1 = 0;
break;
}
case 3:
if (del(before, p) == 1)
{
return 1;
}
else
{
return 0;
}
case 4:
flag1 = 1;
break;
case 0:
return 0;
}
if (flag1 == 1)
break;
else
{
system("cls");
cout << "还需要做什么？" << endl;
continue;
}
}
}
}
}
int del(Pbook before, Pbook will_be_del)
{
before->next = will_be_del->next;
free(will_be_del);
system("cls");
cout << "该图书信息已被删除" << endl
<< "你还需要做什么？" << endl;
while (1)
{
cout << "**********************" << endl
<< "* 1.继续搜索 *" << endl
<< "* 0.退出搜索 *" << endl
<< "**********************" << endl;
int in;
cin >> in;
if (in == 1)
{
return 1;
}
else if (in == 0)
return 0;
else
{
cout << "输入错误，请重新选择" << endl;
continue;
}
}
}
int modify(Pbook p)
{
system("cls");
cout << "您需要做什么？" << endl;
int in;
while (1)
{
cout << "*************************" << endl;
cout << "* 1.修改图书名称 *" << endl;
cout << "* 2.修改作者 *" << endl;
cout << "* 3.修改出版时间 *" << endl;
cout << "* 4.修改价格 *" << endl;
cout << "* 5.修改数量 *" << endl;
cout << "* 6.回到上一目录 *" << endl;
cout << "* 0.退出 *" << endl;
cout << "*************************" << endl;
cin >> in;
system("cls");
switch (in)
{
case 1:
cout << "原有的图书名称为：" << p->book_name << endl
<< "请键入修改后的名称:";
scanf("%s", p->book_name);
break;
case 2:
cout << "原有的作者为：" << p->author << endl
<< "请键入修改后的作者：";
scanf("%s", p->author);
break;
case 3:
cout << "原有的出版时间为：" << p->time << endl;
cout << "请键入修改后的时间：";
cin >> p->time;
break;
case 4:
cout << "原有的价格为：" << p->price << endl;
cout << "请键入修改后的价格：";
cin >> p->price;
break;
case 5:
cout << "原有的数量为：" << p->count << endl;
cout << "请键入修改后的数量：";
cin >> p->count;
break;
case 6:
return 0;
break;
case 0:
return 1;
break;
}
system("cls");
cout << "信息修改成功，按回车继续。。。" << endl;
system("pause");
system("cls");
cout << "您还需要做什么？" << endl;
}
}
/************************************借阅功能区**************************************************/
void borrowor(Pbook head, Pborrow borrowed)
{
system("cls");
if (head->next == NULL)
{
null_error();
return;
}
int in;
cout << "您要做什么" << endl;
while (1)
{
cout << "***************************" << endl
<< "* 1.借阅图书 *" << endl
<< "* 2.归还图书 *" << endl
<< "* 0.退出 *" << endl
<< "***************************" << endl;
cin >> in;
int tsl;
switch (in)
{
case 1:
tsl = borrow(head, borrowed);
while (tsl != 0)
{
tsl = borrow(head, borrowed);
}
break;
case 2:
return_book_list(borrowed, head);
break;
case 0:
return;
}
system("cls");
cout << "您还需要做什么？" << endl;
}
}
int borrow(Pbook head, Pborrow borrowed)
{
system("cls");
cout << "请输入搜寻根据" << endl;
cout << "*************************" << endl
<< "* 1.图书编号 *" << endl
<< "* 2.图书名称 *" << endl
<< "* 3.图书作者 *" << endl
<< "* 0.退出 *" << endl
<< "*************************" << endl;
int in;
cin >> in;
system("cls");
int want_to_find_num;
char want_to_find_name[50];
char want_to_find_author[50];
switch (in)
{
case 1:
cout << "请输入图书编号：";
cin >> want_to_find_num;
break;
case 2:
cout << "请输入图书名称：";
cin >> want_to_find_name;
break;
case 3:
cout << "请输入图书作者：";
cin >> want_to_find_author;
break;
case 0:
return 0;
}
Pbook p = head->next;
int flag2 = 0;
while (p != NULL)
{
switch (in)
{
case 1:
if (want_to_find_num == p->book_id)
flag2 = 1;
break;
case 2:
if (strcmp(want_to_find_name, p->book_name) == 0)
flag2 = 1;
break;
case 3:
if (strcmp(want_to_find_author, p->author) == 0)
flag2 = 1;
break;
}
if (flag2 == 1)
break;
p = p->next;
}
if (flag2 == 0)
{
system("cls");
cout << "未找到相关图书，是否借阅其它图书？" << endl;
cout << "********************" << endl
<< "* 1.继续 *" << endl
<< "* 0.结束 *" << endl
<< "********************" << endl;
int intwice;
cin >> intwice;
if (intwice == 1)
return 1;
else
return 0;
}
else
{
system("cls");
if (p->count == 0)
{
cout << "该图书暂时缺货" << endl
<< "****************" << endl
<< "* 1.继续借阅 *" << endl
<< "* 0.退出 *" << endl
<< "****************" << endl;
int in;
cin >> in;
if (in == 1)
return 1;
else
return 0;
}
cout << "已找到该图书，";
while (1)
{
cout << "目前此书还有" << p->count << "本" << endl
<< "你现在还可以借阅" << user_now->book_limit << "本书" << endl
<< "请输入借阅数量（输入0为取消借阅）：" << endl;
int borrow_count;
cin >> borrow_count;
system("cls");
if (borrow_count > p->count)
{
cout << "没这么多书！！！" << endl
<< "************************" << endl
<< "* 1.输入其他数量 *" << endl
<< "* 2.借阅其他图书 *" << endl
<< "* 0.取消借阅 *" << endl
<< "************************" << endl;
int choose_book;
cin >> choose_book;
if (choose_book == 2)
return 1;
else if (choose_book == 0)
return 0;
else
{
system("cls");
continue;
}
}
else
{
p->count -= borrow_count;
user_now->book_limit -= borrow_count;
add_borrow(p, borrowed, p->book_id, p->book_id * 10000 + p->count, borrow_count, user_now->user_name, p->book_name);
cout << "借阅成功，请按时归还。" << endl
<< "输入回车以继续。。。";
getchar();
return 0;
}
system("cls");
}
}
return 0;
}
void add_borrow(Pbook d, Pborrow head, int a, int b, int c, char name[], char book_name[])
{
Pborrow p = head;
while (p->next != NULL)
p = p->next;
Pborrow q = (Pborrow)malloc(sizeof(BORROW));
q->book_id = a;
strcpy(q->book_name, book_name);
q->borrowed_book_id = b;
q->count = c;
strcpy(q->student_id, name);
p->next = q;
q->next = NULL;
cout << "请记录您的借书编号：" << b << endl;
cout << "请按下回车继续。。。";
getchar();
getchar();
system("cls");
return;
}
void return_book_list(Pborrow head, Pbook origin)
{
system("cls");
cout << "请选择：" << endl
<< "**************************" << endl
<< "* 1.通过学号还书 *" << endl
<< "* 2.通过编号还书 *" << endl
<< "* 0.退出 *" << endl
<< "**************************" << endl;
int in;
cin >> in;
system("cls");
if (in == 1)
{
return_book_by_student_id(head, origin);
}
else if (in == 2)
{
return_book(head, origin);
}
else
return;
}
int return_book_by_student_id(Pborrow head, Pbook origin)
{
system("cls");
char student_id[50];
int flag = 0;
cout << "请输入您的帐号：";
cin >> student_id;
system("cls");
Pborrow p = head->next;
while (p != NULL)
{
if (strcmp(p->student_id, student_id) == 0)
{
if (flag == 0)
{
flag = 1;
cout << "****************************************************************" << endl
<< "* 借书编号 书籍名称 借书数量 借书者学号 *" << endl;
}
printf("*%10d", p->borrowed_book_id);
printf("%14s", p->book_name);
printf("%14d", p->count);
printf("%18s *\n", p->student_id);
}
p = p->next;
}
if (flag == 1)
{
cout << "****************************************************************" << endl;
return_book(head, origin);
return 0;
}
else
{
system("cls");
cout << "您没有借过书" << endl
<< "按下回车继续。。。" << endl;
getchar();
getchar();
system("cls");
return 0;
}
}
int return_book(Pborrow head_list, Pbook origin)
{
int return_id;
cout << "请输入您的借书编号以还书（输入0取消还书）：";
cin >> return_id;
if (return_id == 0)
{
system("cls");
cout << "取消成功" << endl;
system("pause");
return 0;
}
int flag = 0;
Pborrow p = head_list->next, before = head_list;
while (p != NULL)
{
if (p->borrowed_book_id == return_id)
{
flag = 1;
break;
}
before = p;
p = p->next;
}
system("cls");
if (flag == 0)
{
cout << "借书编号有误，请重新输入" << endl;
cout << "按下回车继续";
getchar();
getchar();
system("cls");
return 1;
}
else
{
origin->count += p->count;
user_now->book_limit += p->count;
before->next = p->next;
free(p);
cout << "归还成功。。。";
Sleep(2000);
system("cls");
}
return 0;
}
int fix_passwd_by_oneself()
{
system("cls");
while (1)
{
cout << "请输入修改后的密码：";
char passwd_now[50], again[50];
cin >> passwd_now;
cout << "请再次输入密码：";
cin >> again;
if (strcmp(passwd_now, again) == 0)
{
strcpy(user_now->passwd, passwd_now);
cout << "密码修改成功。。。" << endl;
system("pause");
return 0;
}
else
{
cout << "两次输入密码不一致。。。" << endl;
system("pause");
}
}
}
/*****************************************用户管理***********************************************/
char administrator[50] = "admin";
char admin_passwd[50] = "admin";
int user_judge(Pusers head)
{
system("cls");
char user_id[50];
cout << "请输入您的账号：";
cin >> user_id;
if (strcmp(administrator, user_id) == 0)
{
cout << "请输入密码：";
char passwd[50];
cin >> passwd;
if (strcmp(passwd, admin_passwd) == 0)
return 2; //权限为2，即最高权限————管理员
}
Pusers p = head->next;
while (p != NULL)
{
if (strcmp(p->user_name, user_id) == 0)
{
char passwd[50];
cout << "请输入密码：";
cin >> passwd;
int count_limit = 3;
while (count_limit--)
{
if (strcmp(passwd, p->passwd) == 0)
{
user_now = p;
return 1;
} //权限为1，为用户权限
}
return 0; //权限为0，即未登录，没有权限
}
p = p->next;
}
cout << "暂未收录该用户信息，请联系管理员。。。" << endl;
system("pause");
return 0;
}
void user_error()
{
system("cls");
cout << "暂未收录任何用户信息" << endl;
system("pause");
}
void del_user(Pusers head)
{
if (head->next == NULL)
{
user_error();
return;
}
cout << "请输入要注销用户编号：";
long long id;
cin >> id;
Pusers p = head;
while (p->next != NULL)
{
if (id == p->user_id)
{
break;
}
p = p->next;
}
if (p->next == NULL)
{
cout << "该用户不存在。。。" << endl;
system("pause");
return;
}
p->next = p->next->next;
free(p->next);
cout << "用户删除成功。。。" << endl;
system("pause");
return;
}
int add_users(Pusers head)
{
system("cls");
Pusers p = head;
while (p->next != NULL)
{
p = p->next;
}
while (1)
{
system("cls");
Pusers q = (Pusers)malloc(sizeof(USERS));
p->next = q;
q->next = NULL;
char idid[50];
int flag = 1;
while (flag)
{
cout << "请输入用户编号(编号为数字)：";
cin >> idid;
q->user_id=0;
long long ten=1;
for (int i = strlen(idid)-1; i >=0 ; i--)
{
if (idid[i] >= '0' && idid[i] <= '9')
{
q->user_id +=( idid[i] - '0')*ten;
flag = 0;
ten*=10;
}
else
{
flag = 1;
break;
}
}
if (flag == 1)
{
system("cls");
cout << "编号为数字！！！" << endl;
cout << "编号为数字！！！" << endl;
cout << "编号为数字！！！" << endl;
system("pause");
system("cls");
}
}
flag = 1;
while (flag)
{
cout << "请输入账号：";
scanf("%s", q->user_name);
if (strcmp(q->user_name, "admin") == 0)
{
cout << "账号不能为admin" << endl;
system("pause")
}
Pusers chongfu = head->next;
while (chongfu != NULL)
{
if (strcmp(q->user_name, chongfu->user_name) == 0)
{
break;
}
}
if (chongfu == NULL)
{
flag = 0;
}
else
{
cout << "用户名已存在" << endl;
system("pause");
system("cls");
}
}
cout << "请输入密码：";
scanf("%s", q->passwd);
cout << "用户身份：" << endl
<< "1.学生" << endl
<< "2.老师" << endl;
int job;
cin >> job;
q->book_limit = job * 10;
q->job=job;
p->next = q;
p = p->next;
system("cls");
cout << "添加成功。。。" << endl;
system("pause");
system("cls");
cout << "是否继续添加？" << endl
<< "1.是" << endl
<< "0.否" << endl;
cin >> job;
system("cls");
if (job == 0)
{
return 0;
}
}
}
void user_list(Pusers head)
{
system("cls");
if (head->next == NULL)
{
user_error();
return;
}
Pusers p = head->next;
printf("%10s%16s%16s\n", "用户编号", "用户名", "身份");
while (p != NULL)
{
char job[50];
if (p->job == 1)
{
strcpy(job, "学生");
}
else
strcpy(job, "老师");
printf("%10d", p->user_id);
printf("%16s", p->user_name);
printf("%16s\n", job);
p = p->next;
}
system("pause");
system("cls");
}
int user_manage(Pusers head)
{
system("cls");
cout << "1.增加用户" << endl
<< "2.注销用户" << endl
<< "3.所有用户" << endl
<< "0.退出" << endl;
cout << "请选择：";
int in;
cin >> in;
switch (in)
{
case 1:
add_users(head);
break;
case 2:
del_user(head);
break;
case 3:
user_list(head);
break;
case 0:
return 0;
}
}
/*****************************************主函数区***********************************************/
void welcome(int root)
{
if (root == 1)
{
cout << "1.所有图书" << endl
<< "2.借还图书" << endl
<< "3.更改密码" << endl
<< "0.退出" << endl;
}
else if (root == 2)
{
cout << "1.增加图书" << endl
<< "2.所有图书" << endl
<< "3.搜索图书" << endl
<< "4.用户管理" << endl
<< "5.查看所有已借图书" << endl
<< "0.退出" << endl;
}
printf("请输入相应序号：");
}
int main()
{
int n;
BOOK headd;
BORROW borrowedd;
Pbook head = &headd;
Pborrow borrowed = &borrowedd;
USERS user_head;
Pusers puser = &user_head;
headd.next = NULL;
borrowedd.next = NULL;
user_head.next = NULL;
read_books_information_to_file(head, borrowed, puser);
int root = user_judge(puser);
system("cls");
while (root == 0)
{
cout << "\t1.继续登陆" << endl
<< "\t0.退出" << endl;
cout << "\t请选择：";
int in;
cin >> in;
if (in == 0)
{
cout << "感谢使用。。。" << endl;
Sleep(1000);
return 0;
}
else
{
root = user_judge(puser);
}
}
welcome(root);
int ffllaagg;
if (root == 1) //普通用户选项
{
while (cin >> n)
{
if (n == 0)
{
system("cls");
// cout << "感谢您的使用." << endl;
break;
;
}
switch (n)
{
case 1:
list(head);
break;
case 2:
borrowor(head, borrowed);
break;
case 3:
fix_passwd_by_oneself();
break;
}
system("cls");
cout << "你还要做什么：" << endl;
welcome(root);
}
}
else if (root == 2)
{
while (cin >> n)
{
if (n == 0)
{
system("cls");
// cout << "感谢您的使用." << endl;
break;
;
}
switch (n)
{
case 1:
addbook(head);
break;
case 2:
list(head);
break;
case 3:
ffllaagg = search(head);
while (ffllaagg)
{
ffllaagg = search(head);
}
break;
case 4:
user_manage(puser);
break;
case 5:
list_borrow(borrowed);
break;
}
system("cls");
cout << "您还需要做什么" << endl;
welcome(root);
}
}
system("cls");
save_books_information_to_file(head, borrowed, puser);
system("pause");
return 0;
}
