CPP
#include <iostream>
#include <fstream>
#include <algorithm>
#include <string>
using namespace std;
class Student {
private:
? ? string name;
? ? int numb;
? ? int year;
? ? string sex;
? ? int birth;
? ? string address;
? ? int phone;
? ? string email;
public:
? ? static int count;
? ? Student() {}
? ? Student(string name, int numb, int year, string sex, int birth, string address, int phone, string email);
? ? ~Student() {}
? ? void chaxun(const Student* stu);
? ? void show() const;
? ? void in() const;
? ? static void add(Student students[], int& count);
? ? static void deletes(Student students[], int& count);
? ? static void paixu(Student students[], int count);
? ? static void cunchufile(const Student students[], int count);
? ? static void jiazaixinxi(Student students[], int& count);
? ? static void display(const Student students[], int count);
? ? static bool compareStudents(const Student& s1, const Student& s2);
};
int Student::count = 0;
Student::Student(string name1, int numb1, int year1, string sex1, int birth1, string address1, int phone1, string email1) {
? ? in();
? ? name = name1;
? ? numb = numb1;
? ? year = year1;
? ? sex = sex1;
? ? birth = birth1;
? ? address = address1;
? ? phone = phone1;
? ? email = email1;
}
void Student::chaxun(const Student* stu) {
? ? int a;
? ? cin >> a;
? ? if (a == stu->numb) {
? ? ? ? show();
? ? }
? ? else {
? ? ? ? cout << "查無此人" << endl;
? ? }
}
void Student::show() const {
? ? cout << "姓名：" << name << endl;
? ? cout << "學(xué)號：" << numb << endl;
? ? cout << "入學(xué)年份：" << year << endl;
? ? cout << "性別：" << sex << endl;
? ? cout << "出生日期：" << birth << endl;
? ? cout << "家庭地址：" << address << endl;
? ? cout << "聯(lián)系電話：" << phone << endl;
? ? cout << "電子郵箱：" << email << endl;
}
void Student::in() const {
? ? ifstream in;
? ? in.open("students.txt", ios::out);
? ? in.close();
}
void Student::add(Student students[], int& count) {
? ? if (count < 100) {
? ? ? ? string name, sex, address, email;
? ? ? ? int numb, year, birth, phone;
? ? ? ? cout << "請輸入學(xué)生姓名：";
? ? ? ? cin >> name;
? ? ? ? cout << "請輸入學(xué)生學(xué)號：";
? ? ? ? cin >> numb;
? ? ? ? cout << "請輸入學(xué)生入學(xué)年份：";
? ? ? ? cin >> year;
? ? ? ? cout << "請輸入學(xué)生性別：";
? ? ? ? cin >> sex;
? ? ? ? cout << "請輸入學(xué)生出生日期：";
? ? ? ? cin >> birth;
? ? ? ? cout << "請輸入學(xué)生家庭地址：";
? ? ? ? cin >> address;
? ? ? ? cout << "請輸入學(xué)生聯(lián)系電話：";
? ? ? ? cin >> phone;
? ? ? ? cout << "請輸入學(xué)生電子郵箱：";
? ? ? ? cin >> email;
? ? ? ? students[count] = Student(name, numb, year, sex, birth, address, phone, email);
? ? ? ? count++;
? ? ? ? cout << "添加學(xué)生信息成功！" << endl;
? ? }
}
void Student::deletes(Student students[], int& count) {
? ? int numb;
? ? cout << "請輸入要刪除的學(xué)生的學(xué)號：";
? ? cin >> numb;
? ? int index = -1;
? ? for (int i = 0; i < count; i++) {
? ? ? ? if (students[i].numb == numb) {
? ? ? ? ? ? index = i;
? ? ? ? ? ? break;
? ? ? ? }
? ? }
? ? if (index != -1) {
? ? ? ? for (int i = index; i < count - 1; i++) {
? ? ? ? ? ? students[i] = students[i + 1];
? ? ? ? }
? ? ? ? count--;
? ? ? ? cout << "刪除成功！" << endl;
? ? }
? ? else {
? ? ? ? cout << "抱歉，未找到學(xué)號為" << numb << "的學(xué)生！" << endl;
? ? }
}
void Student::paixu(Student students[], int count) {
? ? sort(students, students + count, compareStudents);
? ? cout << "排序完成！" << endl;
}
void Student::cunchufile(const Student students[], int count) {
? ? ofstream file("students.txt");
? ? if (file.is_open()) {
? ? ? ? for (int i = 0; i < count; i++) {
? ? ? ? ? ? file<< students[i].name << " " << students[i].numb << " " << students[i].year << " "<< students[i].sex << " " << students[i].birth << " " << students[i].address << " "<< students[i].phone << " " << students[i].email << endl;
? ? ? ? }
? ? ? ? file.close();
? ? ? ? cout << "保存成功！" << endl;
? ? }
? ? else {
? ? ? ? cout << "無法打開文件！" << endl;
? ? }
}
void Student::jiazaixinxi(Student students[], int& count) {
? ? ifstream file("students.txt");
? ? if (file.is_open()) {
? ? ? ? string name, sex, address, email;
? ? ? ? int numb, year, birth, phone;
? ? ? ? while (file >> name >> numb >> year >> sex >> birth >> address >> phone >> email)?
{
? ? ? ? ? ? students[count] = Student(name, numb, year, sex, birth, address, phone, email);
? ? ? ? ? ? count++;
? ? ? ? }
? ? ? ? file.close();
? ? ? ? cout << "加載成功！" << endl;
? ? }
}
void Student::display(const Student students[], int count) {
? ? for (int i = 0; i < count; i++)?
{
? ? ? ? cout << "學(xué)生信息" << i + 1 << ":" << endl;
? ? ? ? students[i].show();
? ? ? ? cout << endl;
? ? }
}
bool Student::compareStudents(const Student& s1, const Student& s2) {
? ? return s1.name < s2.name;
}
int main() {
? ? Student students[100];
? ? int count = 0;
? ? int choice;
? ? while (true) {
? ? cout << "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? **************歡迎來到學(xué)生信息管理系統(tǒng)**************" << endl;
? ? cout << "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? **************1. 添加學(xué)生信息**************" << endl;
? ? cout << "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? **************2. 刪除學(xué)生信息**************" << endl;
? ? cout << "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? **************3. 排序?qū)W生信息**************" << endl;
? ? cout << "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? **************4. 顯示學(xué)生信息**************" << endl;
? ? cout << "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? **************5. 保存學(xué)生信息到文件**************" << endl;
? ? cout << "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? **************6. 從文件加載學(xué)生信息**************" << endl;
? ? cout << "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? **************0. 退出**************" << endl;
? ? cout << "**************請輸入選擇：";
? ? cin >> choice;
? ? switch (choice) {
? ? case 1:Student::add(students, count);break;
? ? case 2:Student::deletes(students, count);break;
? ? case 3:Student::paixu(students, count);break;
? ? case 4:Student::display(students, count);break;
case 5:Student::cunchufile(students, count);
case 6:Student::jiazaixinxi(students, count); break;
? ? case 0: break;
? ? default:cout << "錯(cuò)誤" << endl;break;
? ? ? ? }
? ? } while (choice != 0);
? ? return 0;
}
