C++之简单实现学生管理系统

#include 
using namespace std;
struct Person {
	string _name;
	string _gender;
	int _age;
	double _score;
	string _Phone;
	string _address;
};
struct personInformation {
	int _size;
	struct Person personArray[10];
};
void addPerson(personInformation* personinformation) {
	string name, gender, Phone, address;
	int age = 0;
	double score=0;
	if (personinformation->_size == 10) {
		cout << "人数已经满了，不能添加了" << endl;
		system("pauses");
		system("cls");
		return;
	}
	else {
		cout << "请输入姓名:" << endl;
		cin >> name;
		personinformation->personArray[personinformation->_size]._name = name;
		cout << "请输入性别:" << endl;
		while (1)
		{
			cin >> gender;
			if (gender == "男" || gender == "女") {
				break;
			}
				cout << "请重新输入你的性别:" << endl;
		}
		personinformation->personArray[personinformation->_size]._gender = gender;
		cout << "请输入年龄:" << endl;
		cin >> age;
		personinformation->personArray[personinformation->_size]._age = age;
		cout << "请输入分数:" << endl;
		cin >> score;
		personinformation->personArray[personinformation->_size]._score = score;
		cout << "请输入电话:" << endl;
		cin >> Phone;
		personinformation->personArray[personinformation->_size]._Phone = Phone;
		cout << "请输入家庭地址:" << endl;
		cin >> address;
		personinformation->personArray[personinformation->_size]._address = address;
		personinformation->_size++;
		cout << "恭喜你登记成功..." << endl;
		system("pause");
		system("cls");
	}
}

//
void showMenu() {
	cout << "-------------------------------n";
	cout << " *****1、添加学生信息 *****" << endl;
	cout << " *****2、显示学生信息 *****" << endl;
	cout << " *****3、删除学生信息 *****" << endl;
	cout << " *****4、查找学生信息 *****" << endl;
	cout << " *****5、修改学生信息 *****" << endl;
	cout << " *****6、清空学生信息 *****" << endl;
	cout << " *****0、退出学生系统 *****" << endl;
	cout << "-------------------------------nn";
}
void showInformation(personInformation* personinformation) {
	if (personinformation->_size == 0)
	{
		cout << "你还没有添加任何的学生，可以先去添加一个学生后再去查看哦..." << endl;
	}
	else {
		for (int i = 0; i < personinformation->_size; i++)
		{
			cout << "姓名：" << personinformation->personArray[i]._name << "t";
			cout << "性别：" << personinformation->personArray[i]._gender << "t";
			cout << "年龄：" << personinformation->personArray[i]._age << "t";
			cout << "分数：" << personinformation->personArray[i]._score << "t";
			cout << "电话：" << personinformation->personArray[i]._Phone << "t";
			cout << "地址：" << personinformation->personArray[i]._address << endl;
		}
	}
	system("pause");
	system("cls");
}
int isExist(personInformation* personinformation, string name) {

	for (int i = 0; i < personinformation->_size; i++)
	{
		if (personinformation->personArray[i]._name == name) {
			return i;
		}
	}
	return -1;
}
void deleteInformation(personInformation* personinformation) {
	string name;
	cout << "请输入你想要删除的名字：" << endl;
	cin >> name;
	int res = isExist(personinformation, name);
	if (res == -1)
	{
		cout << "没有找到这一个人..." << endl;
	}
	else {
		for (int i = 0; i < personinformation->_size; i++)
		{
			personinformation->personArray[i] = personinformation->personArray[i + 1];
		}
		personinformation->_size--;
		cout << "删除成功..." << endl;
	}
	system("pause");
	system("cls");
}
void foundInformation(personInformation* personinformation) {
	string name;
	cout << "请输入你想要查找的学生：" << endl;
	cin >> name;
	int res = isExist(personinformation, name);

	if (res != -1)
	{
		cout << "姓名：" << personinformation->personArray[res]._name << "t";
		cout << "性别：" << personinformation->personArray[res]._gender << "t";
		cout << "年龄：" << personinformation->personArray[res]._age << "t";
		cout << "年龄：" << personinformation->personArray[res]._score << "t";
		cout << "电话：" << personinformation->personArray[res]._Phone << "t";
		cout << "地址：" << personinformation->personArray[res]._address << endl;
	}
	else {
		cout << "查无此人,请添加后再一次查看吧..." << endl;
	}
	system("pause");
	system("cls");
}

void changeInformation(personInformation* personinformation) {
	string name, gender, Phone, address;
	int age;
	double score = 0;
	cout << "请输入你想要改变学生信息的姓名：" << endl;
	cin >> name;
	int res = isExist(personinformation, name);
	string name2;
	if (res != -1)
	{
		cout << "请根据下面的要求进行更改：" << endl;
		cout << "请输入姓名:" << endl;
		cin >> name2;
		personinformation->personArray[res]._name = name2;
		cout << "请输入性别:" << endl;
		while (1)
		{
			cin >> gender;
			if (gender == "男" || gender == "女") {
				break;
			}
			cout << "请重新输入你的性别:" << endl;
		}
		personinformation->personArray[res]._gender = gender;
		cout << "请输入年龄:" << endl;
		cin >> age;
		personinformation->personArray[res]._age = age;
		cout << "请输入分数:" << endl;
		cin >> score;
		personinformation->personArray[res]._score = score;
		cout << "请输入电话:" << endl;
		cin >> Phone;
		personinformation->personArray[res]._Phone = Phone;
		cout << "请输入家庭地址:" << endl;
		cin >> address;
		personinformation->personArray[res]._address = address;
		cout << "恭喜你已经再次成功修改了学生" << name << "的个人信息" << endl;
	}
	else {
		cout << "暂未找到这个人的信息..." << endl;
	}
	system("pause");
	system("cls");
}
void clearInformation(personInformation* personinformation) {
	if (personinformation->_size == 0)
	{
		cout << "你当前还没有任何的学生信息..." << endl;
		system("pause");
		system("cls");
		return;
	}
	else {
		string chance;
		cout << "你确定要清空所有的学生的个人信息吗？y/n" << endl;
		while (true)
		{
			cin >> chance;
			if (chance == "y" || chance == "n")
			{
				break;
			}
		}
		if (chance == "y")
		{
			personinformation->_size = 0;
			cout << "你已经没有任何人的个人信息了..." << endl;
		}
	}
	system("pause");
	system("cls");
}
int main() {
	personInformation personinformation;
	personinformation._size = 0;
	int select = 0;
	while (1)
	{
		showMenu();
		cout << "请在0-6中进行选择：" << endl;
		cin >> select;
		switch (select)
		{
		case 1://
			addPerson(&personinformation);
			break;
		case 2://
			showInformation(&personinformation);
			break;
		case 3://
			deleteInformation(&personinformation);
			break;
		case 4://
			foundInformation(&personinformation);
			break;
		case 5://
			changeInformation(&personinformation);
			break;
		case 6://
			clearInformation(&personinformation);
			break;
		case 0://
			cout << "欢迎下次使用" << endl;
			system("pause");
			system("cls");
			break;
		}
	}
	system("pause");
	return 0;
}