#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
const char* STUDENT_DB_FILE = "students.txt";
struct Student {
char ID[10];
char name[10];
char number[10];
double recharge;
double remain;
int state;
};
struct Record {
char ID[10];
char Date[10];
char start_time[10];
int duration;
char state;
char address[10];
};
// 登录模块
bool login(Student& student) {
char inputID[10];
char password[10];
int attempts = 0;
bool successfulLogin = false;
while (attempts < 3) {
cout << "请输入学生卡号: ";
cin >> inputID;
cout << "请输入密码: ";
cin >> password;
ifstream studentDB(STUDENT_DB_FILE, ios::in | ios::binary);
while (studentDB.read((char*)&student, sizeof(Student))) {
if (strcmp(student.ID, inputID) == 0 && strcmp(student.name, password) == 0) {
successfulLogin = true;
break;
}
}
studentDB.close();
if (successfulLogin) {
cout << "登录成功!" << endl;
return true;
}
else {
attempts++;
cout << "登录失败!剩余尝试次数: " << 3 - attempts << endl;
}
}
cout << "账户已冻结,请联系管理员解锁。" << endl;
return false;
}
bool registerStudent(Student& student) {
char newID[10];
char newPassword[10];
ofstream studentDB(STUDENT_DB_FILE, ios::out | ios::binary | ios::app);
cout << "请输入新学生卡号: ";
cin >> newID;
cout << "请输入新密码: ";
cin >> newPassword;
Student newStudent;
strcpy(newStudent.ID, newID);
strcpy(newStudent.name, newPassword);
studentDB.write((char*)&newStudent, sizeof(Student));
studentDB.close();
cout << "注册成功!" << endl;
return true;
}
// 管理员模块
bool adminLogin() {
char password[10];
cout << "请输入管理员密码: ";
cin >> password;
// 假设管理员密码为 "admin123"
if (strcmp(password, "admin123") == 0) {
cout << "管理员登录成功!" << endl;
return true;
}
else {
cout << "管理员登录失败!" << endl;
return false;
}
}
void addStudent() {
ofstream studentDB(STUDENT_DB_FILE, ios::app | ios::binary);
Student student;
cout << "请输入学生卡号: ";
cin >> student.ID;
cout << "请输入姓名: ";
cin >> student.name;
cout << "请输入学号: ";
cin >> student.number;
cout << "请输入充值数额: ";
cin >> student.recharge;
cout << "请输入账户状态(0-正常, 1-挂失, 2-冻结): ";
cin >> student.state;
// 初始化余额为充值数额
student.remain = student.recharge;
studentDB.write((char*)&student, sizeof(Student));
studentDB.close();
cout << "学生信息已添加!" << endl;
}
void recharge(Student& student) {
double amount;
cout << "请输入充值数额: ";
cin >> amount;
student.recharge += amount;
student.remain += amount;
fstream studentDB(STUDENT_DB_FILE, ios::in | ios::out | ios::binary);
Student temp;
while (studentDB.read((char*)&temp, sizeof(Student))) {
if (strcmp(temp.ID, student.ID) == 0) {
studentDB.seekp(-sizeof(Student), ios::cur);
studentDB.write((char*)&student, sizeof(Student));
break;
}
}
studentDB.close();
cout << "充值成功!" << endl;
}
void reportLost(Student& student) {
student.state = 1; // 设置状态为挂失
fstream studentDB(STUDENT_DB_FILE, ios::in | ios::out | ios::binary);
Student temp;
while (studentDB.read((char*)&temp, sizeof(Student))) {
if (strcmp(temp.ID, student.ID) == 0) {
studentDB.seekp(-sizeof(Student), ios::cur);
studentDB.write((char*)&student, sizeof(Student));
break;
}
}
studentDB.close();
cout << "挂失成功!" << endl;
}
void resetPassword(Student& student) {
cout << "请输入新密码: ";
cin >> student.name;
fstream studentDB(STUDENT_DB_FILE, ios::in | ios::out | ios::binary);
Student temp;
while (studentDB.read((char*)&temp, sizeof(Student))) {
if (strcmp(temp.ID, student.ID) == 0) {
studentDB.seekp(-sizeof(Student), ios::cur);
studentDB.write((char*)&student, sizeof(Student));
break;
}
}
studentDB.close();
cout << "密码重置成功!" << endl;
}
// 学生模块
void showBalance(Student& student) {
cout << "账户余额: " << student.remain << " 元" << endl;
}
void showUsageHistory(Student& student) {
ifstream recordFile(student.ID);
if (!recordFile) {
cout << "无上机记录" << endl;
return;
}
Record record;
cout << "上机记录: " << endl;
while (recordFile.read((char*)&record, sizeof(Record))) {
cout << "日期: " << record.Date << " 开始时间: " << record.start_time << " 地点: " << record.address << endl;
}
recordFile.close();
}
void startUsingComputer(Student& student) {
Record record;
strcpy(record.ID, student.ID);
cout << "请输入上机日期: ";
cin >> record.Date;
cout << "请输入开始时间: ";
cin >> record.start_time;
cout << "请输入上机时长: ";
cin >> record.duration;
cout << "请输入上机地点: ";
cin >> record.address;
record.state = '1'; // 标记为上机中
ofstream recordFile(student.ID, ios::app | ios::binary);
recordFile.write((char*)&record, sizeof(Record));
recordFile.close();
cout << "上机记录已保存!" << endl;
}
void menu() {
cout << "------------------------" << endl;
cout << "1. 登录" << endl;
cout << "2. 管理员登录" << endl;
cout << "3. 退出" << endl;
cout << "4. 注册" << endl;
cout << "------------------------" << endl;
cout << "请选择菜单项: ";
}
int main() {
int choice;
Student student;
do {
menu();
cin >> choice;
switch (choice) {
case 1:
if (login(student)) {
int studentChoice;
do {
cout << "------------------------" << endl;
cout << "1. 查询余额" << endl;
cout << "2. 查询使用记录" << endl;
cout << "3. 上机" << endl;
cout << "4. 返回" << endl;
cout << "------------------------" << endl;
cout << "请选择菜单项: ";
cin >> studentChoice;
switch (studentChoice) {
case 1:
showBalance(student);
break;
case 2:
showUsageHistory(student);
break;
case 3:
startUsingComputer(student);
break;
case 4:
break;
default:
cout << "无效的选项!" << endl;
}
} while (studentChoice != 4);
}
break;
case 2:
if (adminLogin()) {
int adminChoice;
do {
cout << "------------------------" << endl;
cout << "1. 添加学生信息" << endl;
cout << "2. 充值" << endl;
cout << "3. 挂失" << endl;
cout << "4. 重置密码" << endl;
cout << "5. 返回" << endl;
cout << "------------------------" << endl;
cout << "请选择菜单项: ";
cin >> adminChoice;
switch (adminChoice) {
case 1:
addStudent();
break;
case 2:
cout << "请输入学生卡号: ";
cin >> student.ID;
recharge(student);
break;
case 3:
cout << "请输入学生卡号: ";
cin >> student.ID;
reportLost(student);
break;
case 4:
cout << "请输入学生卡号: ";
cin >> student.ID;
resetPassword(student);
break;
case 5:
break;
default:
cout << "无效的选项!" << endl;
}
} while (adminChoice != 5);
}
break;
case 3:
cout << "再见!" << endl;
break;
case 4:
Student student;
registerStudent(student);
break;
default:
cout << "无效的选项!" << endl;
}
} while (choice != 3);
return 0;
}
c语言校园卡模拟系统 功能就如图片所示啦 大家将就看 需要自取
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转载自blog.csdn.net/qq_62088638/article/details/133743285
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