C++学生信息管理系统

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#define _CRT_SECURE_NO_WARNINGS 1
#include 
#include 
#include 
#include 
using namespace std;
class Student
{
public:
	string m_name;
	string m_id;
	int m_age;
	string m_phone;
	string m_address;
};
class Manager
{
public:
	void menu();
	void InsertNewStudent(vector& CQUT, Student& p);
	void Output(vector& CQUT);
	void print(Student& p);
	Student SearchByName(vector& CQUT, const string& name_id);
	void Modify(vector& CQUT,Student& p);
	void DeleteStudent(vector& CQUT, string name_id);
};
void Manager::menu()
{
		printf("*********************************************************n");
		printf("t欢迎使用学生管理系统！n");
		printf("t1.录入学生信息n");
		printf("t2.查询全部学生信息n");
		printf("t3.查找学生信息n");
		printf("t4.修改学生信息n");
		printf("t5.删除学生信息n");
		printf("t6.退出系统n");
		printf("*********************************************************n");
		printf("请选择：");	
}

void Manager::InsertNewStudent(vector& CQUT, Student& p)
{
	cout << "请输入新加学生的姓名" << endl;
	cin >> p.m_name;
	cout << "请输入新加学生的学号" << endl;
	cin >> p.m_id;
	cout << "请输入新加学生的年龄" << endl;
	cin >> p.m_age;
	getchar();
	cout << "请输入新加学生的电话" << endl;
	cin >> p.m_phone;
	cout << "请输入新加学生的住址" << endl;
	cin >> p.m_address;
	getchar();
	CQUT.push_back(p);
}

void Manager::Output(vector& CQUT)
{
	for (vector::iterator it = CQUT.begin(); it != CQUT.end(); it++)
	{
		cout << (*it).m_name     << "t";
		cout << (*it).m_id       << "t";
		cout << (*it).m_age      << "t";
		cout << (*it).m_phone    << "t";
		cout << (*it).m_address  << endl;
	}
}

	vector CQUT;
void Manager::print(Student& p)
{
	cout << p.m_name << "t";
	cout << p.m_id << "t";
	cout << p.m_age << "t";
	cout << p.m_phone << "t";
	cout << p.m_address << endl;
}

Student Manager::SearchByName(vector& CQUT, const string& id)
{
	vector::iterator it;
	for (it = CQUT.begin(); it != CQUT.end(); it++)
	{
		if (it->m_id == id)
		{
			return *it;
		}
	}
	if (it == CQUT.end())
	{
		cout << "查无此人！" << endl;
	}
}

void Manager::Modify(vector& CQUT,Student& p)
{
	cout << "请输入新的姓名" << endl;
	cin >> p.m_name;
	cout << "请输入新的学号" << endl;
	cin >> p.m_id;
	cout << "请输入新的年龄" << endl;
	cin >> p.m_age;
	getchar();
	cout << "请输入新的电话" << endl;
	cin >> p.m_phone;
	cout << "请输入新的住址" << endl;
	cin >> p.m_address;
	getchar();
	CQUT.push_back(p);
}

void Manager::DeleteStudent(vector& CQUT, string name_id)
{
	vector::iterator it;
	for (it = CQUT.begin(); it != CQUT.end(); it++)
	{
		if (it->m_id == name_id)
		{
			CQUT.erase(it);
		}
	}
}
void Run()
{
	int op = 0;
	int choice;
	Manager m;
	Student p;
	while(true)
	{
		system("mode con cols=57 lines=50");//调整控制台大小
		system("color F4");                          //字体颜色与背景
		m.menu();
		cin >> op;
		switch (op)
		{
		case 1:
			m.InsertNewStudent(CQUT, p);
			break;
		case 2:
			m.Output(CQUT);
			break;
		case 3:
			cout << "请输入您要查找的学生的学号：";
			cin >> p.m_id;
			p = m.SearchByName(CQUT, p.m_id);
			m.print(p);
			cout << "1.修改          2.删除           3.退出" << endl;
			cin >> choice;
			if (choice == 1)
			{
				m.Modify(CQUT, p);
			}
			else if (choice == 2)
			{
				m.DeleteStudent(CQUT, p.m_id);
			}
			else
			{
				break;
			}
			break;
		case 4:
			cout << "请输入您要修改的学生的学号：";
			cin >> p.m_id;
			p = m.SearchByName(CQUT, p.m_id);
			m.print(p);
			m.Modify(CQUT, p);
			break;
		default:
			break;
		}
		system("pause");
		system("cls");
	}

}
int main()
{
	int numbers = 3;//给用户三次机会输入密码
	string account = "123";  //账号
	string password = "123";  //密码
	string input1;//接收用户输入的账号
	string input2;//接收用户输入的密码
	char ch;
	while (numbers)
	{
		cout << "请输入账号：";
		cin >> input1;
		cout << "请输入密码：";
		cin >> input2;
		if (input1  == password &&input2 == account )
		{
			cout << "正在登陆..." << endl;
			Sleep(2000);
			Run();
		}
		else
		{
			cout << "账号/密码错误!" << endl;
			numbers--;
		}
	}
	if (numbers == 3)
	{
		cout << "您已输错三次，程序自动退出！" << endl;
	}
	return 0;
}