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C++实现学生选课系统的思路与详细过程

小小圆脸 人气:0

一、项目要求

(1)学生有自己的 ID、姓名 、年级 、选课信息等;

(2)学生可以进行对已选课程的增删改查;

(3)每个课程有自己的学分,授课老师等;

二、模块分析

分析:

我们首要的首要的任务就是先对模块进行划分;从项目的要求出发;该系统可以大致分为两大类;

课程类(用来保存每门课程的信息,例如编号,名称,学分,授课教师);

学生类(用来保存每个学生的信息;例如编号,名字,性别。年级,分数);

对于这两个类来说;他们拥有相同的一点;就是编号和名称;所以可以脱出一个类用其他两个类来继承它;

设计思路

首先思考:打造一个火车那就先建造每一节车厢 ;而车厢就像是一个货物清单;用c++的类来实现;当一个车厢建造出来之后;最后就是用工具将它连接起来;

对项目分析:

(1)首先设计两个火车,一个是课程的;一个是学生的;

(2)每个火车都有自己的属性和成员;

(3)学生火车可以操作课程火车;

watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5bCP5bCP5ZyG6IS4,size_20,color_FFFFFF,t_70,g_se,x_16

watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5bCP5bCP5ZyG6IS4,size_20,color_FFFFFF,t_70,g_se,x_16

类实现:(也就是每一节车厢的模板)

1)基类(信息类)

目的:保存学生和课程共有的属性也就是,编号和名称;

class info
{
protected:
	long number;//编号
	string name;//名称
public:
	info() {}
	info(long num, string name) :number(num), name(name) {}
};

2)课程类;(公有继承信息类)

class course : public info//课程类
{
private:
	int credit;//学分
	string teachername;//授课教师
public:
	course() {}
	course(long num, string name, int cre, string tea) : info(num, name)
	{
		credit = cre;
		teachername = tea;
	}
	course(const course& c1)
	{
		number = c1.number;
		name = c1.name;
		credit = c1.credit;
		teachername = c1.teachername;
	}
	static void print();//输出数据
	static void get();//获取数据
	static void add();//增加数据
	static void del();//删除数据
	static void edit();//修改数据
	static int ishave(long si);//查询是否有该课程
};

3)学生类(公有继承信息类)

class student : public info//学生类
{
private:
	string sex;//性别
	string grade;//年级
	long scredit;
public:
	vector<course> havec;//查询学生选课信息
	student() {}
	student(long num, string name, string se, string gra, long scr) : info(num, name)
	{
		sex = se;
		grade = gra;
		scredit = scr;
	}
	static void print();//输出数据
	static void get();//获取数据
	static void add();//增加数据
	static void del();//删除数据
	static void edit();//修改数据
	static int ishave(long si);//查询是否有该学生
	static void addcourse();// 为学生添加课程
	static void delcourse();//为学生删除课程
	static int ishavec(long si);//查询该学生是否有该课程
};

函数实现

1) void print();向屏幕输出课程信息

void course::print()
{
	system("cls");
 
	for (int i = 0; i < c.size(); i++)
	{
		cout << "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━" << endl;
		cout << endl << "课程编号:" << c[i].number << "   课程名称:" << c[i].name << "   课程学分:" \
			<< c[i].credit << "   授课老师:" << c[i].teachername << endl;
	}
 
	cout << "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━" << endl;
	cprintorget();
}

2)void get();指定课程的信息,用课程编号获取

void course::get()//获得课程信息
{
	system("cls");
	long k = 1, kk;
 
	cout << "*************请输入要查询的课程编号**************" << endl;
	
	cin >> kk;
	if (ishave(kk))
	{
		for (size_t i = 0; i < c.size(); i++)
			if (c[i].number == kk)
			{
				cout << endl << "课程编号:" << c[i].number << "   课程名称:" << c[i].name << "   课程学分:" \
					<< c[i].credit << "   授课老师:" << c[i].teachername << endl;
				break;
			}
	}
	else
	{
		cout << "*************没有该课程******************" << endl;
	
	}
	cprintorget();
}

3)void add();增加一个课程的信息

void course::add()
{
	system("cls");
	long k = 1; course c1;
	cout << "$        请输入要添加的课程编号:      $" << endl;
	cin >> c1.number;
	while (ishave(c1.number))
	{
 
		system("cls");
	
		cout << "***************************************" <<endl;
		cout << "        该课程已添加,请重新输入:       " << endl;
		cout << "              (按0退出)               " << endl;
		cout << "***************************************" << endl;
		cin >> k;
		if (k == 0)
		{
			cinfo();
			break;
		}
		else c1.number = k;
 
	}
	if (k != 0)
	{
		
		cout << "$           请输入课程名称:           &" << endl;
		cin >> c1.name;
		cout << "****************************************" << endl;
		cout << "            请输入课程学分:             " << endl;
		cout << "****************************************" << endl;
		cin >> c1.credit;
		cout << "****************************************" << endl;
		cout << "          请输入授课老师名称:            " << endl;
		cout << "****************************************" << endl;
		cin >> c1.teachername;
		system("cls");
		c.push_back(c1);
		cinfo();
	}
}

4)void del() ; 删除某个课程信息(老师)

void course::del()//老师删除课程信息
{
	system("cls");
	long k = 1, kk;
	cout << "***************请输入要删除的课程编号****************" << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (auto p = c.begin(); p != c.end();)
		{
			if (p->number == kk)
			{
				p = c.erase(p);
				break;
			}
			else
				++p;
		}
		cout << "***************成功删除该课程********************" << endl;
		
}
	else
	{
		
		cout << "****************你还没有添加该课程****************" << endl;
	}
}

5)void edit();修改课程信息(老师)

void course::edit()//老师修改课程信息
{
	system("cls");
	long k = 1, kk;
	cout << "       请输入要修改课程的课程编号:     " << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (size_t i = 0; i < c.size(); i++)
		{
			if (c[i].number == kk)
			{
				system("cls");
				cout << "          请重新输入课程名称:           " << endl;
				cin >> c[i].name;
				cout << "          请重新输入课程学分:           " << endl;
				cin >> c[i].credit;
				cout << "         请重新输入授课老师名称:         " << endl;
				cin >> c[i].teachername;
				cout << "              修改成功。                 " << endl;
				break;
			}
		}
	}
	else
	{
		cout << "              没有该课程 。             " << endl;
 
	}
 
}

6)void ishave(long si);查询是否有该课程

int course::ishave(long si)//查询是否有该课程
{
	for (size_t i = 0; i < c.size(); i++)
		if (c[i].number == si)
			return true;
	return false;
}

7)void print();打印学生的信息

void student::print()//打印所有学生信息
{
	long sumk = 0;
	system("cls");
	for (int i = 0; i < s.size(); i++)
	{
		sumk = 0;
		cout << "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━" << endl;
		cout << endl << "学生学号:" << s[i].number << "   姓名:" << s[i].name << "   性别:" \
			<< s[i].sex << "   年级:" << s[i].grade << endl << endl\
			<< "学生已选课程:" << endl;
		if (s[i].havec.size() == 0)
		{
			cout << "无" << endl;
			continue;
		}
		else
		{
			for (int k = 0; k < s[i].havec.size(); k++)
			{
				cout << endl << "课程编号:" << s[i].havec[k].number << "   课程名称:" << s[i].havec[k].name << "   课程学分:" \
					<< s[i].havec[k].credit << "   授课老师:" << s[i].havec[k].teachername << endl;
				sumk = sumk + s[i].havec[k].credit;
 
			}
			cout << endl << "该学生本学期共有" << s[i].scredit << "学分,已选" << s[i].havec.size() << "门,共" << sumk << "学分。" << endl;
		}
	}cout << "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━" << endl;
	sprintorget();
}

8)void get();获取学生的信息

void student::get()//获取学生信息
{
	system("cls");
	long k = 1, kk, sumk = 0;
	cout << "          请输入要查询的学生学号:       " << endl;
	cin >> kk;
	system("cls");
	if (ishave(kk))
	{
		for (size_t i = 0; i < s.size(); i++)
			if (s[i].number == kk)
			{
				cout << "************************************************** << endl;
				cout << endl << "学生学号:" << s[i].number << "   姓名:" << s[i].name << "   性别:" \
					<< s[i].sex << "   年级:" << s[i].grade << endl << endl\
					<< "学生已选课程:" << endl;
				if (s[i].havec.size() == 0)
				{
					cout << "无" << endl;
					continue;
				}
				else
				{
					for (int k = 0; k < s[i].havec.size(); k++)
					{
						cout << endl << "课程编号:" << s[i].havec[k].number << "   课程名称:" << s[i].havec[k].name << "   课程学分:" \
							<< s[i].havec[k].credit << "   授课老师:" << s[i].havec[k].teachername << endl;
						sumk = sumk + s[i].havec[k].credit;
					}
					cout << endl << "该学生本学期共有" << s[i].scredit << "学分,已选" << s[i].havec.size() << "门,共" << sumk << "学分。" << endl;
					cout << "************************************************" << endl;
				}
			}
	}
	else
	{
		cout << "              没有该学生。            " << endl;
	}
	sprintorget();
}

9)void add();添加学生的信息

void student::add()//添加学生信息
{
	system("cls");
	long k = 1; student s1;
	cout << "          请输入要添加的学生学号:        " << endl;
	cin >> s1.number;
	while (ishave(s1.number))
	{
 
		system("cls");
		cout << "       该学生已添加,请重新输入:       " << endl;
		cout << "             (按0退出)               " << endl;
		cin >> k;
		if (k == 0)
		{
			sinfo();
			break;
		}
		else s1.number = k;
 
	}
	if (k != 0)
	{
		cout << "             请输入学生姓名:            " << endl;
		cin >> s1.name; 
		cout << "             请输入学生性别:             " << endl;
		cin >> s1.sex;
		cout << "             请输入学生年级:            " << endl;
		cin >> s1.grade; 
		system("cls");
		s.push_back(s1);
		sinfo();
	}
}

效果展示

watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5bCP5bCP5ZyG6IS4,size_20,color_FFFFFF,t_70,g_se,x_16

watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5bCP5bCP5ZyG6IS4,size_20,color_FFFFFF,t_70,g_se,x_16

源代码:

#if 1
#include <iostream>
#include<string.h>
#include <windows.h>
#include <vector>
#include<algorithm>
#include <string>
using namespace std;
using std::vector;
int Menu();
void cinfo();
void cprintorget();
void sinfo();
void sprintorget();
char password[16] = "1234";
 
class info//信息类
{
protected:
	long number;//编号
	string name;//名称
public:
	info() {}
	info(long num, string name) :number(num), name(name) {}
};
 
class course : public info//课程类
{
protected:
	int credit;//学分
	string teachername;//授课教师
public:
	course() {}
	course(long num, string name, int cre, string tea) : info(num, name)
	{
		credit = cre;
		teachername = tea;
	}
	course(const course& c1)
	{
		number = c1.number;
		name = c1.name;
		credit = c1.credit;
		teachername = c1.teachername;
	}
	static void print();//输出数据
	static void get();//获取数据
	static void add();//增加数据
	static void del();//删除数据
	static void edit();//修改数据
	static int ishave(long si);//查询是否有该课程
	friend class student;
};
vector<course> c;
 
class student : public info//学生类
{
	
protected:
	string sex;//性别
	string grade;//年级
	long scredit;
public:
	vector<course> havec;//查询学生选课信息
	student() {}
	student(long num, string name, string se, string gra, long scr) : info(num, name)
	{
		sex = se;
		grade = gra;
		scredit = scr;
	}
	static void print();//输出数据
	static void get();//获取数据
	static void add();//增加数据
	static void del();//删除数据
	static void edit();//修改数据
	static int ishave(long si);//查询是否有该学生
	static void addcourse();// 为学生添加课程
	static void delcourse();//为学生删除课程
	static int ishavec(long si);//查询该学生是否有该课程
};
vector<student> s;
 
 
void course::print()//打印所以课程信息 
{
	system("cls");
 
	for (int i = 0; i < c.size(); i++)
	{
		cout << endl << "课程编号:" << c[i].number << "   课程名称:" << c[i].name << "   课程学分:" \
			<< c[i].credit << "   授课老师:" << c[i].teachername << endl;
	}
 
	cprintorget();
}
 
void course::get()//获得课程信息
{
	system("cls");
	long k = 1, kk;
	
	cout << "        请输入要查询的课程编号:      " << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (size_t i = 0; i < c.size(); i++)
			if (c[i].number == kk)
			{
				cout << endl << "课程编号:" << c[i].number << "   课程名称:" << c[i].name << "   课程学分:" \
					<< c[i].credit << "   授课老师:" << c[i].teachername << endl;
				break;
			}
	}
	else
	{	
		cout << "              没有该课程 。           " << endl;
	}
	cprintorget();
}
 
void course::add()
{
	system("cls");
	long k = 1; course c1;
	cout << "        请输入要添加的课程编号:      " << endl;
	cin >> c1.number;
	while (ishave(c1.number))
	{
 
		system("cls");
		cout << "┃      该课程已添加,请重新输入:      ┃" << endl;
		cout << "┃             (按0退出)              ┃" << endl;
		cin >> k;
		if (k == 0)
		{
			cinfo();
			break;
		}
		else c1.number = k;
 
	}
	if (k != 0)
	{
		cout << "           请输入课程名称:            " << endl;
		cin >> c1.name;
		cout << "           请输入课程学分:           " << endl;
		cin >> c1.credit;
		cout << "          请输入授课老师名称:         " << endl;
		cin >> c1.teachername;
		system("cls");
		c.push_back(c1);
		cinfo();
	}
}
 
void course::del()//老师删除课程信息
{
	system("cls");
	long k = 1, kk;
	cout << "         请输入要删除的课程编号:       " << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (auto p = c.begin(); p != c.end();)
		{
			if (p->number == kk)
			{
				p = c.erase(p);
				break;
			}
			else
				++p;
		}
		cout << "            成功删除该课程。          " << endl;
	}
	else
	{
		cout << "          你还没有添加该课程 。        " << endl;
	}
}
 
void course::edit()//老师修改课程信息
{
	system("cls");
	long k = 1, kk;
	cout << "      请输入要修改课程的课程编号:    " << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (size_t i = 0; i < c.size(); i++)
		{
			if (c[i].number == kk)
			{
				system("cls");
				
				cout << "         请重新输入课程名称:         " << endl;
				cin >> c[i].name;
				cout << "         请重新输入课程学分:         " << endl;
				cin >> c[i].credit;
				cout << "       请重新输入授课老师名称:       " << endl;
				cin >> c[i].teachername;
				cout << "              修改成功。              " << endl;
				break;
			}
		}
	}
	else
	{
		cout << "              没有该课程 。           " << endl;
	}
 
}
 
int course::ishave(long si)//查询是否有该课程
{
	for (size_t i = 0; i < c.size(); i++)
		if (c[i].number == si)
			return true;
	return false;
}
void student::print()//打印所有学生信息
{
	long sumk = 0;
	system("cls");
	for (int i = 0; i < s.size(); i++)
	{
		sumk = 0;
		cout << endl << "学生学号:" << s[i].number << "   姓名:" << s[i].name << "   性别:" \
			<< s[i].sex << "   年级:" << s[i].grade << endl << endl\
			<< "学生已选课程:" << endl;
		if (s[i].havec.size() == 0)
		{
			cout << "无" << endl;
			continue;
		}
		else
		{
			for (int k = 0; k < s[i].havec.size(); k++)
			{
				cout << endl << "课程编号:" << s[i].havec[k].number << "   课程名称:" << s[i].havec[k].name << "   课程学分:" \
					<< s[i].havec[k].credit << "   授课老师:" << s[i].havec[k].teachername << endl;
				sumk = sumk + s[i].havec[k].credit;
 
			}
			cout << endl << "该学生本学期共有" << s[i].scredit << "学分,已选" << s[i].havec.size() << "门,共" << sumk << "学分。" << endl;
		}
	}
	sprintorget();
}
 
void student::get()//获取学生信息
{
	system("cls");
	long k = 1, kk, sumk = 0;
	cout << "        请输入要查询的学生学号:      " << endl;
	cin >> kk;
	system("cls");
	if (ishave(kk))
	{
		for (size_t i = 0; i < s.size(); i++)
			if (s[i].number == kk)
			{
				cout << endl << "学生学号:" << s[i].number << "   姓名:" << s[i].name << "   性别:" \
					<< s[i].sex << "   年级:" << s[i].grade << endl << endl\
					<< "学生已选课程:" << endl;
				if (s[i].havec.size() == 0)
				{
					cout << "无" << endl;
					continue;
				}
				else
				{
					for (int k = 0; k < s[i].havec.size(); k++)
					{
						cout << endl << "课程编号:" << s[i].havec[k].number << "   课程名称:" << s[i].havec[k].name << "   课程学分:" \
							<< s[i].havec[k].credit << "   授课老师:" << s[i].havec[k].teachername << endl;
						sumk = sumk + s[i].havec[k].credit;
 
					}
					cout << endl << "该学生本学期共有" << s[i].scredit << "学分,已选" << s[i].havec.size() << "门,共" << sumk << "学分。" << endl;
				}
			}
	}
	else
	{
		cout << "              没有该学生。            " << endl;
	}
	sprintorget();
}
 
void student::add()//添加学生信息
{
	system("cls");
	long k = 1; student s1;
	cout << "        请输入要添加的学生学号:      " << endl;
	cin >> s1.number;
	while (ishave(s1.number))
	{
		system("cls");
		cout << "┃      该学生已添加,请重新输入:      ┃" << endl;
		cout << "┃             (按0退出)              ┃" << endl;
		cin >> k;
		if (k == 0)
		{
			sinfo();
			break;
		}
		else s1.number = k;
 
	}
	if (k != 0)
	{
		cout << "           请输入学生姓名:           " << endl;
		cin >> s1.name;
		cout << "           请输入学生性别:           " << endl;
		cin >> s1.sex;
		cout << "           请输入学生年级:           " << endl;
		cin >> s1.grade;
		system("cls");
		s.push_back(s1);
		sinfo();
	}
}
 
void student::del()    //删除学生信息
{
	system("cls");
	long k = 1, kk;
	cout << "        请输入要删除的学生学号:      " << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (auto p = s.begin(); p != s.end();)
		{
			if (p->number == kk)
			{
				p = s.erase(p);
				break;
			}
			else
				++p;
		}
		cout << "            成功删除该学生:          " << endl;
 
	}
	else
	{
		cout << "          你还没有添加该学生 。       " << endl;
		
	}
}
 
void student::edit()//修改学生信息
{
	system("cls");
	long k = 1, kk;
	cout << "        请输入要修改学生的学号:      " << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (size_t i = 0; i < s.size(); i++)
		{
			if (s[i].number == kk)
			{
				system("cls");	
				cout << "         请重新输入学生姓名:         " << endl;
				cin >> s[i].name;
				cout << "         请重新输入学生性别:         " << endl;
				cin >> s[i].sex;
				cout << "         请重新输入学生年级:         " << endl;
				cin >> s[i].grade;
				cout << "              修改成功。              " << endl;
				break;
			}
		}
	}
	else
	{
		cout <<  "             没有该学生。            " << endl;
	}
}
 
void student::addcourse()//添加课程
{
	system("cls");
	long k = 1, kk, sumk = 0, sk;
	cout << "           请输入学生的学号:         " << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (size_t i = 0; i < s.size(); i++)
		{
			if (s[i].number == kk)
			{
			
				cout << endl << "学生学号:" << s[i].number << "   姓名:" << s[i].name << "   性别:" \
					<< s[i].sex << "   年级:" << s[i].grade << endl << endl\
					<< "学生已选课程:" << endl;
				if (s[i].havec.size() == 0)
				{
					cout << "无" << endl;
 
				}
				else
				{
					for (int k = 0; k < s[i].havec.size(); k++)
					{
						cout << endl << "课程编号:" << s[i].havec[k].number << "   课程名称:" << s[i].havec[k].name << "   课程学分:" \
							<< s[i].havec[k].credit << "   授课老师:" << s[i].havec[k].teachername << endl;
						sumk = sumk + s[i].havec[k].credit;
 
					}
					cout << endl << "该学生本学期共有" << s[i].scredit << "学分,已选" << s[i].havec.size() << "门,共" << sumk << "学分。" << endl;
				
				}
				
				cout << "          请输入要添加的课程:        " << endl;
				cin >> sk;
				for (size_t k = 0; k < s[i].havec.size(); k++)
					if (s[i].havec[k].number == sk)
					{
						cout << "         已有该课程,无法添加。       " << endl;	
					}
					else
					{
						if (course::ishave(sk))
						{
							course c1;
							for (size_t jk = 0; jk < c.size(); jk++)
							{
								if (c[jk].number == sk)
								{
									c1.number = c[jk].number;
									c1.name = c[jk].name;
									c1.credit = c[jk].credit;
									c1.teachername = c[jk].teachername;
								}
							}
							sumk = sumk + c1.credit;
							if (sumk > s[i].scredit)
							{
								cout << "┃          学分不足,无法添加。        ┃" << endl;
							}
							else
							{
								s[i].havec.push_back(c1);		
								cout << "┃               添加成功。             ┃" << endl;
								break;
							}
 
 
						}
						else
						{
							cout << "┃           系统内没有该课程 。        ┃" << endl;
						}
					}
 
			}
		}
	}
	else
	{
		cout << "              没有该学生。            " << endl;
	}
}
 
void student::delcourse()//删除课程 
{
	system("cls");
	long k = 1, kk, sumk = 0, sk;
	cout << "           请输入学生的学号:         " << endl;
	cin >> kk;
	if (ishave(kk))
	{
		for (size_t i = 0; i < s.size(); i++)
		{
			if (s[i].number == kk)
			{
				cout << endl << "学生学号:" << s[i].number << "   姓名:" << s[i].name << "   性别:" \
					<< s[i].sex << "   年级:" << s[i].grade << endl << endl\
					<< "学生已选课程:" << endl;
				if (s[i].havec.size() == 0)
				{
					cout << "无" << endl;
					continue;
				}
				else
				{
					for (int k = 0; k < s[i].havec.size(); k++)
					{
						cout << endl << "课程编号:" << s[i].havec[k].number << "   课程名称:" << s[i].havec[k].name << "   课程学分:" \
							<< s[i].havec[k].credit << "   授课老师:" << s[i].havec[k].teachername << endl;
						sumk = sumk + s[i].havec[k].credit;
 
					}
					cout << endl << "该学生本学期共有" << s[i].scredit << "学分,已选" << s[i].havec.size() << "门,共" << sumk << "学分。" << endl;
				}
				cout << "          请输入要删除的课程:        " << endl;
				cin >> sk;
				for (auto p = s[i].havec.begin(); p != s[i].havec.end();)
				{
					if (p->number == sk)
					{
						p = s[i].havec.erase(p);
						break;
					}
					else
						++p;
				}
				cout << "               删除成功。             " << endl;
			}
		}
	}
	else
	{
		cout << "              没有该学生。            " << endl;
 
	}
}
 
int student::ishave(long si)
{
	for (size_t i = 0; i < s.size(); i++)
		if (s[i].number == si)
			return true;
	return false;
}
 
void cprintorget()//查询或展示课程信息
{
	cout << endl;
	cout << "      **学生选课信息管理系统**   " << endl;
	cout << "      ┏━━━━━━━━━━━━━━━━━━━━━┓   " << endl;
	cout << "      ┃ 请选择功能:        ┃   " << endl;
	cout << "      ┃ 1.查询课程信息      ┃  " << endl;
	cout << "      ┃ 2.展示课程信息      ┃  " << endl;
	cout << "      ┃ 3.回到上一页        ┃  " << endl;
	cout << "      ┗━━━━━━━━━━━━━━━━━━━━━┛   " << endl;
	cout << "      请输入序号(1~3)进入系统操作:  " << endl;
	cout << endl;
	int ii, k = 1;
	cin >> ii;
	while (k)
	{
		if (ii > 3 || ii < 1)
		{
			cout << "输入错误,请重新输入数字1~3。" << endl;
			cin >> ii;
		}
 
		else
			k = 0;
	}
	system("cls");
	switch (ii)
	{
	case 1: course::get(); break;
	case 2: course::print(); break;
	case 3:cinfo(); break;
	}
}
 
void cinfo()//学生选课信息
{
	system("cls");
	cout << endl;
	cout << "      **学生选课信息管理系统**   " << endl;
	cout << "      ┏━━━━━━━━━━━━━━━━━━━━━┓   " << endl;
	cout << "      ┃ 请选择功能:        ┃   " << endl;
	cout << "      ┃ 1.查询课程信息      ┃  " << endl;
	cout << "      ┃ 2.录入课程信息      ┃  " << endl;
	cout << "      ┃ 3.删除课程信息      ┃  " << endl;
	cout << "      ┃ 4.修改课程信息      ┃  " << endl;
	cout << "      ┃ 5.回到主菜单        ┃  " << endl;
	cout << "      ┗━━━━━━━━━━━━━━━━━━━━━┛   " << endl;
	cout << "      请输入序号(1~5)进入系统操作:  " << endl;
	cout << endl;
 
	int ii, k = 1;
	cin >> ii;
	while (k)
	{
		if (ii > 5 || ii < 1)
		{
			cout << "输入错误,请重新输入数字1~5。" << endl;
			cin >> ii;
		}
 
		else
			k = 0;
	}
	system("cls");
	switch (ii)
	{
	case 1: cprintorget(); break;
	case 2:course::add(); break;
	case 3:course::del(); break;
	case 4:course::edit(); break;
	case 5:Menu(); break;
	}
}
 
void sprintorget()//查询或展示学生信息
{
	cout << endl;
	cout << "      **学生选课信息管理系统**   " << endl;
	cout << "      ┏━━━━━━━━━━━━━━━━━━━━━┓   " << endl;
	cout << "      ┃ 请选择功能:        ┃   " << endl;
	cout << "      ┃ 1.查询学生信息      ┃  " << endl;
	cout << "      ┃ 2.展示学生信息      ┃  " << endl;
	cout << "      ┃ 3.回到上一页        ┃  " << endl;
	cout << "      ┗━━━━━━━━━━━━━━━━━━━━━┛   " << endl;
	cout << "      请输入序号(1~3)进入系统操作:  " << endl;
	cout << endl;
	int ii, k = 1;
	cin >> ii;
	while (k)
	{
		if (ii > 3 || ii < 1)
		{
			cout << "输入错误,请重新输入数字1~3。" << endl;
			cin >> ii;
		}
 
		else
			k = 0;
	}
	system("cls");
	switch (ii)
	{
	case 1: student::get(); break;
	case 2: student::print(); break;
	case 3:sinfo(); break;
	}
}
 
void sinfo()
{
	system("cls");
	cout << endl;
	cout << "      **学生选课信息管理系统**   " << endl;
	cout << "      ┏━━━━━━━━━━━━━━━━━━━━━┓   " << endl;
	cout << "      ┃ 请选择功能:        ┃   " << endl;
	cout << "      ┃ 1.查询学生信息      ┃  " << endl;
	cout << "      ┃ 2.录入学生信息      ┃  " << endl;
	cout << "      ┃ 3.删除学生信息      ┃  " << endl;
	cout << "      ┃ 4.修改学生信息      ┃  " << endl;
	cout << "      ┃ 5.为学生添加课程    ┃  " << endl;
	cout << "      ┃ 6.为学生删除课程    ┃  " << endl;
	cout << "      ┃ 7.回到主菜单        ┃  " << endl;
	cout << "      ┗━━━━━━━━━━━━━━━━━━━━━┛   " << endl;
	cout << "      请输入序号(1~7)进入系统操作:  " << endl;
	cout << endl;
 
	int ii, k = 1;
	cin >> ii;
	while (k)
	{
		if (ii > 7 || ii < 1)
		{
			cout << "输入错误,请重新输入数字1~7。" << endl;
			cin >> ii;
		}
 
		else
			k = 0;
	}
	system("cls");
	switch (ii)
	{
	case 1: sprintorget(); break;
	case 2:student::add(); break;
	case 3:student::del(); break;
	case 4:student::edit(); break;
	case 5:student::addcourse(); break;
	case 6:student::delcourse(); break;
	case 7:Menu(); break;
	}
}
 
void login()//登录界面
{
	cout << "┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓" << endl;
	cout << "┃                                      ┃" << endl;
	cout << "┃欢迎您使用学生选课信息管理系统管理端!┃" << endl;
	cout << "┃                                      ┃" << endl;
	cout << "┃    请输入密码:(默认密码:1234)    ┃" << endl;
	cout << "┃                                      ┃" << endl;
	cout << "┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛" << endl;
	int k = 0;
	char input[16];
	cin >> input;
	while (strcmp(password, input) != 0)
	{
		cout << "┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓" << endl;
		cout << "┃                                      ┃" << endl;
		cout << "┃        密码错误,请重新输入。        ┃" << endl;
		cout << "┃                                      ┃" << endl;
		cout << "┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛" << endl;
		cin >> input;
		k++;
 
		if (k > 3)
		{
			cout << "┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓" << endl;
			cout << "┃                                      ┃" << endl;
			cout << "┃    输入错误超过5次,暂停操作5秒。    ┃" << endl;
			cout << "┃                                      ┃" << endl;
			cout << "┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛" << endl;
			Sleep(5000);
			k = 0;
			system("cls");
			cout << "             请重新输入。             " << endl;
			cin >> input;
		}
	}
 
	if (strcmp(password, input) == 0)
	{
		system("cls");
		cout << "          登录成功,欢迎您 !         " << endl;
	}
}
 
void changepassword()//修改密码
{
	int kk = 1;
	char p1[16], p2[16];
	while (kk) {
		system("cls");
		cout << "            请输入新密码:            " << endl;
		cin >> p1;
		cout << "           请重新输入密码:           " << endl;
		cin >> p2;
		if (strcmp(p1, p2) != 0)
		{
			cout << "  两次输入的密码不一致 ,请重新输入。 " << endl;
		}
		else
		{
			system("cls");
			cout << "       更改密码成功,请重新登录。     " << endl;
			strcpy_s(password, p1);
			kk = 0;
			login();
		}
	}
}
 
 
int Menu()//菜单
{
	while (1)
	{
		cout << endl;
		cout << "      **学生选课信息管理系统**   " << endl;
		cout << "      ┏━━━━━━━━━━━━━━━━━━━━━┓   " << endl;
		cout << "      ┃ 请选择功能:        ┃   " << endl;
		cout << "      ┃ 1.课程信息管理      ┃  " << endl;
		cout << "      ┃ 2.学生信息管理      ┃  " << endl;
		cout << "      ┃ 3.修改密码          ┃  " << endl;
		cout << "      ┃ 4.注销              ┃  " << endl;
		cout << "      ┃ 5.退出系统          ┃  " << endl;
		cout << "      ┗━━━━━━━━━━━━━━━━━━━━━┛   " << endl;
		cout << "      请输入序号(1~5)进入系统操作:  " << endl;
		cout << endl;
 
		int ii, k = 1;
		cin >> ii;
		while (k)
		{
			if (ii > 5 || ii < 1)
			{
				cout << "输入错误,请重新输入数字1~5。" << endl;
				cin >> ii;
			}
 
			else
				k = 0;
		}
 
		switch (ii)
		{
		case 1: cinfo(); break;
		case 2: sinfo(); break;
		case 3:
		{
			changepassword();
			login();
			break;
		}
		case 4:
		{
			system("cls");
			cout << "┃         注销成功,请重新登录。       ┃" << endl;
			login();
		}
		break;
		case 5: return 0;
			break;
		}
	}
}
//*****************************************************//
 
int main()
{
	
	return 0;
}
#endif

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