commit 52dd9b6adf14e9c38473f0a2368162bcdb61627a
Author: smh <smh66ccff@outlook.com>
Date:   Sat Sep 2 15:36:45 2023 +0800

    hello world

diff --git a/Exam.cpp b/Exam.cpp
new file mode 100644
index 0000000..d2b3b77
--- /dev/null
+++ b/Exam.cpp
@@ -0,0 +1,134 @@
+#pragma warning(disable:4996)
+#include"Exam.h"
+using namespace std;
+
+Exam::Exam(Examsave* insave) {
+	this->save = *insave;
+	studentnum = insave->studentnum;
+	strcpy(name, insave->name);
+	strcpy(filename, insave->filename);
+	ifstream ibin(filename, ios::in, ios::binary);
+	Item tmp;
+	for (int i = 0; i < studentnum; i++) {
+		ibin.read((char*)&tmp, sizeof(Item));
+		items.push_back(tmp);
+	}
+	ibin.close();
+	if (items.size() > 0) {
+		sort(items.begin(), items.end());
+		reverse(items.begin(), items.end());
+	}
+}
+Exam::Exam(char inname[]) {
+	strcpy(name, inname);
+	studentnum = 0;
+	ifstream tmp(inname, ios::in, ios::binary);
+	if (tmp.good()) {
+		string nname;
+		nname += inname;
+		for (auto i = 1; i < 100; i++) {
+			nname += to_string(i);
+			ifstream tmp(nname, ios::in, ios::binary);
+			if (!tmp.good()) {
+				break;
+			}
+		}
+		strcpy(filename, nname.c_str());
+	}
+	else {
+		strcpy(filename, inname);
+	}
+}
+void Exam::addItem(long long int studentNo, double score[9]) {
+	rmvItem(studentNo);
+	Item tmp(studentNo, score);
+	items.push_back(tmp);
+	sort(items.begin(), items.end());
+	reverse(items.begin(), items.end());
+	studentnum++;
+}
+void Exam::addItem(const Item& item) {
+	rmvItem(item.getStuNo());
+	items.push_back(item);
+	sort(items.begin(), items.end());
+	reverse(items.begin(), items.end());
+	studentnum++;
+}
+void Exam::saveAll(ofstream& examsout) {
+	strcpy(save.filename, filename);
+	strcpy(save.name, name);
+	studentnum = items.size();
+	save.studentnum = studentnum;
+	ofstream obin(filename, ios::out, ios::binary);
+	Item tmp;
+	for (auto i = items.begin(); i < items.end(); i++) {
+		tmp = *i;
+		obin.write((char*)&tmp, sizeof(Item));
+	}
+	obin.close();
+	examsout.write((char*)&this->save, sizeof(Examsave));
+}
+void Exam::dspHeader() {
+	cout << setw(20) << "名称" << setw(15) << "学生数" << endl;
+}
+void Exam::dsp() const {
+	cout << setw(20) << name << setw(15) << studentnum << endl;
+}
+void Exam::dspName() const {
+	cout << name;
+}
+void Exam::dspName(int w) const {
+	cout << setw(w) << name;
+}
+void Exam::dspItems() const {
+	for (auto i = items.begin(); i < items.end(); i++) {
+		i->dsp();
+		cout << setw(6) << distance(items.begin(), i) + 1 << endl;
+	}
+}
+void Exam::toCsvItems(ofstream& csv) const {
+	for (auto i = items.begin(); i < items.end(); i++) {
+		i->toCsv(csv);
+		csv << distance(items.begin(), i) + 1 << endl;
+	}
+}
+bool Exam::itemExists(long long int studentNo) const {
+	for (auto i = items.begin(); i < items.end(); i++) {
+		if (i->getStuNo()== studentNo) {
+			return true;
+		}
+	}
+	return false;
+}
+bool Exam::rmvItem(long long int studentNo) {
+	for (auto i = items.begin(); i < items.end(); i++) {
+		if (i->getStuNo() == studentNo) {
+			items.erase(i);
+			studentnum--;
+			return true;
+		}
+	}
+	return false;
+}
+void Exam::changeName(char name[]) {
+	strcpy(this->name, name);
+}
+const Item* Exam::StudentInquiry(long long int studentNo) const{
+	for (auto item = items.begin(); item < items.end(); item++) {
+		if (item->getStuNo() == studentNo) {
+			return &(*item);
+		}
+	}
+	return nullptr;
+}
+int Exam::getStuRanking(const Item& item) {
+	for (auto i = items.begin(); i < items.end(); i++) {
+		if (i->stuNoEqual(item)) {
+			return distance(items.begin(), i) + 1;
+		}
+	}
+	return -1;
+}
+void Exam::rm() const {
+	remove(filename);
+}
diff --git a/Exam.h b/Exam.h
new file mode 100644
index 0000000..0328eea
--- /dev/null
+++ b/Exam.h
@@ -0,0 +1,47 @@
+#pragma once
+#include<algorithm>
+#include<fstream>
+#include<iomanip>
+#include<iostream>
+#include<string>
+#include<vector>
+#include"Item.h"
+using namespace std;
+
+struct Examsave {
+	int studentnum;
+	char name[100];
+	char filename[100];
+};
+class Exam {
+
+public:
+	Exam(Examsave* insave);
+	Exam(char inname[]);
+	
+	void saveAll(ofstream& examsout);
+	void addItem(long long int studentNo, double score[9]);
+	void addItem(const Item& item);
+	bool rmvItem(long long int studentNo);
+	static void dspHeader();
+	void dsp() const;
+	void dspName() const;
+	void dspName(int w) const;
+	void dspItems() const;
+	void toCsvItems(ofstream& csv) const;
+	bool itemExists(long long int studentNo) const;
+	void changeName(char name[]);
+	const Item* StudentInquiry(long long int studentNo) const;
+	int getStuRanking(const Item& item);
+	void rm() const;
+
+	virtual ~Exam(){};
+private:
+	vector<Item> items;
+	struct Examsave save;
+	int studentnum;
+	char name[100];	
+	char filename[100];
+	
+
+};
\ No newline at end of file
diff --git a/Item.cpp b/Item.cpp
new file mode 100644
index 0000000..83cabfe
--- /dev/null
+++ b/Item.cpp
@@ -0,0 +1,122 @@
+#include"Item.h"
+#include"Student.h"
+#include"Manager.h"
+using namespace std;
+extern Manager mainManager;
+Item::Item(long long int studentNo, double inscore[]) {
+	sum = 0;
+	for (int i = 0; i < 9; i++) {
+		score[i] = inscore[i];
+		sum = sum + score[i];
+	}
+	this->studentNo = studentNo;
+}
+Item::Item() {
+	studentNo = -1;
+}
+bool Item::operator<(const Item& i) const {
+	if (this->sum < i.sum) {
+		return true;
+	}
+	else if (this->sum > i.sum) {
+		return false;
+	}
+	else if (this->studentNo < i.sum) {
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+bool Item::operator>(const Item& i) const {
+	if (this->sum < i.sum) {
+		return false;
+	}
+	else if (this->sum > i.sum) {
+		return true;
+	}
+	else if (this->studentNo < i.sum) {
+		return false;
+	}
+	else {
+		return true;
+	}
+}
+long long int Item::getStuNo() const {
+	return studentNo;
+}
+bool Item::stuNoEqual(const Item& i) const {
+	if (this->studentNo == i.studentNo) {
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+void Item::dspHeader() {
+	Student::dspHeader();
+	cout << setw(5) << "数学" << setw(5) << "语文" << setw(5) << "英语" << setw(5) << "物理" << setw(5) << "化学" << setw(5) << "生物" << setw(5) << "历史" << setw(5) << "政治" << setw(5) << "地理" << setw(6) << "总分";
+}
+void Item::dspHeader(int w) {
+	cout << setw(5) << "数学" << setw(5) << "语文" << setw(5) << "英语" << setw(5) << "物理" << setw(5) << "化学" << setw(5) << "生物" << setw(5) << "历史" << setw(5) << "政治" << setw(5) << "地理" << setw(6) << "总分";
+}
+void Item::dsp() const {
+	Student* stup = mainManager.searchByNo(this->studentNo);
+	Student stu;
+	if (stup == nullptr) {
+		stu = Student(this->studentNo);
+	}
+	else {
+		stu = *stup;
+	}
+
+	stu.dsp();
+	cout << setw(5) << score[0] << setw(5) << score[1] << setw(5) << score[2] << setw(5) << score[3] << setw(5) << score[4] << setw(5) << score[5] << setw(5) << score[6] << setw(5) << score[7] << setw(5) << score[8] << setw(6) << sum;
+}
+void Item::dsp(int w) const {
+	cout << setw(5) << score[0] << setw(5) << score[1] << setw(5) << score[2] << setw(5) << score[3] << setw(5) << score[4] << setw(5) << score[5] << setw(5) << score[6] << setw(5) << score[7] << setw(5) << score[8] << setw(6) << sum;
+}
+void Item::toCsvHeader(ofstream& csv) {
+	Student::toCsvHeader(csv);
+	csv << "数学," << "语文," << "英语," << "物理," << "化学," << "生物," << "历史," << "政治," << "地理," << "总分,";
+}
+void Item::toCsv(ofstream& csv) const {
+	Student* stup = mainManager.searchByNo(this->studentNo);
+	Student stu;
+	if (stup == nullptr) {
+		stu = Student(this->studentNo);
+	}
+	else {
+		stu = *stup;
+	}
+	stu.toCsv(csv);
+	csv << score[0] << "," << score[1] << "," << score[2] << "," << score[3] << "," << score[4] << "," << score[5] << "," << score[6] << "," << score[7] << "," << score[8] << "," << sum << ",";
+}
+Item::Item(ifstream& csv, int stuNoColumn,int scoreColumn[]) {
+	string line, tmp;
+	vector<string> tmpvector;
+	sum = 0;
+	if (!getline(csv,line)) {
+		studentNo = -1;
+		return;	
+	}
+	stringstream linestream(line);
+	while (getline(linestream, tmp, ',')) {
+		tmpvector.push_back(tmp);
+	};
+	try {
+		studentNo = stoi(tmpvector.at(stuNoColumn-1));
+	}
+	catch (const exception& e) {
+		studentNo = 0;
+	} 
+	for (auto i = 0; i < 9; i++) {
+		try {
+			score[i] = stoi(tmpvector.at(scoreColumn[i]-1));
+		}
+		catch (const exception& e) {
+			score[i] = 0;
+		}
+		sum += score[i];
+	}
+}
diff --git a/Item.h b/Item.h
new file mode 100644
index 0000000..1e64129
--- /dev/null
+++ b/Item.h
@@ -0,0 +1,32 @@
+#pragma once
+#include<algorithm>
+#include<fstream>
+#include<iomanip>
+#include<iostream>
+#include<sstream>
+#include<string>
+#include<vector>
+using namespace std;
+class Item {
+public:
+	Item(long long int studentNo, double inscore[]);
+	Item(ifstream& csv, int stuNoColumn, int scoreColumn[]);
+	Item();
+
+	bool operator>(const Item& i) const;
+	bool operator<(const Item& i) const;
+	long long int getStuNo() const;
+	bool stuNoEqual(const Item& i) const;
+	static void dspHeader();
+	static void dspHeader(int w);
+	void dsp() const;
+	void dsp(int w) const;
+	static void toCsvHeader(ofstream& csv);
+	void toCsv(ofstream& csv) const;
+
+	virtual ~Item() {}
+private:
+	long long int studentNo;
+	double score[9];
+	double sum;
+};
\ No newline at end of file
diff --git a/Manager.cpp b/Manager.cpp
new file mode 100644
index 0000000..3a08e31
--- /dev/null
+++ b/Manager.cpp
@@ -0,0 +1,907 @@
+#include "Manager.h"
+#include"Exceptions.h"
+#pragma warning(disable:4996)
+Manager::Manager() {
+	centeredPrint("##########################################");
+	centeredPrint("##           学生成绩管理系统           ##");
+	centeredPrint("##########################################");
+	cout << endl;
+	centeredPrint("加载中...");
+
+	ifstream numsin("nums.bin", ios::in, ios::binary);
+	if (!numsin.good()) {
+		ExamNum = 0;
+		StudentNum = 0;
+		numsin.close();
+		return;
+	}
+	numsin.read((char*)&StudentNum, sizeof(int));
+	numsin.read((char*)&ExamNum, sizeof(int));
+	numsin.close();
+	ifstream studentsin("students.bin", ios::in, ios::binary);
+	Student tmpstu;
+	for (int i = 0; i < StudentNum; i++) {
+		studentsin.read((char*)&tmpstu, sizeof(Student));
+		Students.push_back(tmpstu);
+	}
+	studentsin.close();
+	ifstream examsin("examsaves.bin", ios::in, ios::binary);
+	Examsave tmpexam;
+	for (int i = 0; i < ExamNum; i++) {
+		examsin.read((char*)&tmpexam, sizeof(Examsave));
+		auto sp1 = make_shared<Exam>(&tmpexam);
+		Exams.push_back(sp1);
+	}
+	examsin.close();
+
+	cout << endl;
+	centeredPrint("欢迎使用!");
+}
+Manager::~Manager() {
+	centeredPrint("保存中...");
+	ofstream examsout("examsaves.bin", ios::out, ios::binary);
+	for (auto i = Exams.begin(); i < Exams.end(); i++) {
+		(*i)->saveAll(examsout);
+	}
+	ExamNum = Exams.size();
+	examsout.close();
+	ofstream studentsout("students.bin", ios::out, ios::binary);
+	for (auto i = Students.begin(); i < Students.end(); i++) {
+		studentsout.write((char*)&(*i), sizeof(Student));
+	}
+	StudentNum = Students.size();
+	studentsout.close();
+	ofstream numsout("nums.bin", ios::out, ios::binary);
+	numsout.write((char*)&StudentNum, sizeof(int));
+	numsout.write((char*)&ExamNum, sizeof(int));
+	numsout.close();
+	centeredPrint("已保存！");
+}
+void Manager::mainLoop() {
+	
+	while (1) {
+		try {
+			switch (status) {
+			case 0:
+				welcomePage();
+				break;
+			case 1:
+				stuPage();
+				break;
+			case 11:
+				stuDspPage();
+				break;
+			case 12:
+				stuAddPage();
+				break;
+			case 13:
+				stuSearchPage();
+				break;
+			case 14:
+				stuEdtRmvPage();
+				break;
+			case 15:
+				stuExportPage();
+				break;
+			case 16:
+				stuImportPage();
+				break;
+			case 2:
+				examPage();
+				break;
+			case 21:
+				examAddPage();
+				break;
+			case 22:
+				examChoosePage();
+				break;
+			case 23:
+				examSubPage();
+				break;
+			case 231:
+				examViewPage();
+				break;
+			case 232:
+				examExportPage();
+				break;
+			case 233:
+				examAddRowPage();
+				break;
+			case 234:
+				examDelRowPage();
+				break;
+			case 235:
+				examNamePage();
+				break;
+			case 236:
+				examImportPage();
+				break;
+			case 237:
+				examRmvPage();
+				break;
+			case 3:
+				stuPfmPage();
+				break;
+			}
+			system("cls");
+			if (status == -1)
+				break;
+		}
+		catch (const InputError& e) {
+			system("cls");
+			cerr << e.what() << endl;
+			cin.clear();
+			cin.ignore(1024,'\n');
+			goBack();
+		}
+		catch (const FileError& e) {
+			system("cls");
+			cerr << e.what() << endl;
+			goBack();
+		}
+		catch (const IndexError& e) {
+			system("cls");
+			cerr << e.what() << endl;
+			goBack();
+		}
+	}
+	
+
+
+}
+void Manager::goBack() {
+	status /= 10;
+}
+void Manager::centeredPrint(const string& content) {
+	HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
+	CONSOLE_SCREEN_BUFFER_INFO bInfo;
+	GetConsoleScreenBufferInfo(hOutput, &bInfo);
+	int dwSizeX = bInfo.dwSize.X, dwSizeY = bInfo.dwSize.Y;
+	int cursorX = bInfo.dwCursorPosition.X, cursorY = bInfo.dwCursorPosition.Y;
+	int len = content.length();
+	COORD pos;
+	pos.X = (dwSizeX - len) / 2;
+	pos.Y = cursorY;
+	SetConsoleCursorPosition(hOutput, pos);
+	cout << content << endl;
+}
+Student* Manager::searchByNo(long long int studentNo) {
+	for (auto i = Students.begin(); i < Students.end(); i++) {
+		if (i->stuNoEqual(studentNo)) {
+			return &(*i);
+		}
+	}
+	return nullptr;
+}
+//status 0
+void Manager::welcomePage() {
+	char choice = '0';
+	cout << "主菜单" << endl;
+	cout << "请选择" << endl;
+	cout << "1: 学生信息管理" << endl;
+	cout << "2: 考试信息" << endl;
+	cout << "3: 学生成绩查询" << endl;
+	cout << "q: 退出" << endl;
+	cin >> choice;
+	switch (choice) {
+	case '1':
+		status = 1;
+		break;
+	case '2':
+		status = 2;
+		break;
+	case '3':
+		status = 3;
+		break;
+	case 'q':
+	case 'Q':
+		status = -1;
+		break;
+	}
+}
+//status 1
+void Manager::stuPage() {
+	char choice = '0';
+	cout << "主菜单-学生" << endl;
+	cout << "请选择" << endl;
+	cout << "1: 全部学生信息" << endl;
+	cout << "2: 添加新学生" << endl;
+	cout << "3: 学生信息搜索" << endl;
+	cout << "4: 编辑/删除已有学生" << endl;
+	cout << "5: 将全部学生信息导出到CSV" << endl;
+	cout << "6: 从CSV导入学生信息" << endl;
+	cout << "b: 返回" << endl;
+	cin >> choice;
+	switch (choice) {
+	case '1':
+		status = 11;
+		break;
+	case '2':
+		status = 12;
+		break;
+	case '3':
+		status = 13;
+		break;
+	case '4':
+		status = 14;
+		break;
+	case '5':
+		status = 15;
+		break;
+	case '6':
+		status = 16;
+		break;
+	case 'b':
+	case 'B':
+		goBack();
+	}
+}
+//status 11
+void Manager::stuDspPage() {
+	cout << "主菜单-学生-信息查看" << endl;
+	cout << setw(6) << "编号";
+	Student::dspHeader();
+	cout << endl;
+	int count = 1;
+	for (auto student = Students.begin(); student < Students.end(); student++) {
+		cout << setw(6) << count++;
+		student->dsp();
+		cout << endl;
+	}
+	string tmp;
+	cout << endl << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 12
+void Manager::stuAddPage() {
+	char choice = '0';
+	cout << "主菜单-学生-添加" << endl;
+	int year;
+	int selectionNo;
+	int classNo;
+	char name[100];
+	cout << "姓名:" << endl;
+	do {
+		cin.getline(name, 100);
+	} while (name[0] == '\0');
+	cout << "入学年份:" << endl;
+	cin >> year;
+	cout << "选科组合:" << endl;
+	cin >> selectionNo;
+	cout << "班级:" << endl;
+	cin >> classNo;
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	Students.push_back(Student(year, selectionNo, classNo, name));
+	cout << "已添加！" << endl;
+	string tmp;
+	cout << endl << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 13
+void Manager::stuSearchPage() {
+	char choice = '0';
+	cout << "主菜单-学生-搜索" << endl;
+	cout << "请选择:" << endl;
+	cout << "1: 按学号搜索" << endl;
+	cout << "2: 按姓名搜索" << endl;
+	cout << "3: 按班级搜索" << endl;
+	cout << "4: 按选科组合搜索" << endl;
+	cout << "5: 按入学年份搜索" << endl;
+	cout << "b: 返回" << endl;
+	cin >> choice;
+	vector<Student> result;
+	int enrollmentYear;
+	switch (choice) {
+	case '1':
+		long long int inputNo;
+		cout << "请输入学号:";
+		cin >> inputNo;
+		if (!cin.good()) {
+			throw InputError("输入字符非法!");
+		}
+		for (auto stu = Students.begin(); stu < Students.end(); stu++) {
+			if (stu->stuNoEqual(inputNo)) {
+				result.push_back(*stu);
+			}
+		}
+		break;
+	case '2':
+		char inputName[100];
+		cout << "请输入学生姓名:";
+		do {
+			cin.getline(inputName, 100);
+		} while (inputName[0] == '\0');
+		for (auto stu = Students.begin(); stu < Students.end(); stu++) {
+			if (stu->nameEqual(inputName)) {
+				result.push_back(*stu);
+			}
+		}
+		break;
+	case '3':
+		int inputClassNo;
+		cout << "请输入入学年份:";
+		cin >> enrollmentYear;
+		cout << "请输入班级:";
+		cin >> inputClassNo;
+		if (!cin.good()) {
+			throw InputError("输入字符非法!");
+		}
+		for (auto stu = Students.begin(); stu < Students.end(); stu++) {
+			if (stu->clsNoEqual(inputClassNo) && stu->yearEqual(enrollmentYear)) {
+				result.push_back(*stu);
+			}
+		}
+		break;
+	case '4':
+		int inputSelectionNo;
+		cout << "请输入入学年份:";
+		cin >> enrollmentYear;
+		cout << "请输入选科组合:";
+		cin >> inputSelectionNo;
+		if (!cin.good()) {
+			throw InputError("输入字符非法!");
+		}
+		for (auto stu = Students.begin(); stu < Students.end(); stu++) {
+			if (stu->slcNoEqual(inputSelectionNo) && stu->yearEqual(enrollmentYear)) {
+				result.push_back(*stu);
+			}
+		}
+		break;
+	case '5':
+		cout << "请输入入学年份:";
+		cin >> enrollmentYear;
+		if (!cin.good()) {
+			throw InputError("输入字符非法!");
+		}
+		for (auto stu = Students.begin(); stu < Students.end(); stu++) {
+			if (stu->yearEqual(enrollmentYear)) {
+				result.push_back(*stu);
+			}
+		}
+		break;
+	case 'b':
+	case 'B':
+		goBack();
+	}
+	if (status != 1) {
+		cout << setw(6) << "编号";
+		Student::dspHeader();
+		cout << endl;
+		int count = 1;
+		for (auto student = result.begin(); student < result.end(); student++) {
+			cout << setw(6) << count++;
+			student->dsp();
+			cout << endl;
+		}
+		cout << endl;
+		if (result.size() == 0) {
+			cout << "未找到符合条件的学生" << endl;
+		}
+		cout << "b: 返回" << endl;
+		string tmp;
+		cin >> tmp;
+		goBack();
+	}
+}
+//status 14
+void Manager::stuEdtRmvPage() {
+	int inputNo;
+	string tmp;
+	cout << "主菜单-学生-编辑/删除" << endl;
+	cout << "请输入学号:";
+	cin >> inputNo;
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	auto it = Students.end();
+	for (auto stu = Students.begin(); stu < Students.end(); stu++) {
+		if (stu->stuNoEqual(inputNo)) {
+			it = stu;
+		}
+	}
+	if (it == Students.end()) {
+		cout << "查无此人" << endl;
+		cout << "b: 返回" << endl;		
+		cin >> tmp;
+		goBack();
+	}
+	else {
+		char choice;
+		cout << "1: 编辑学生信息" << endl;
+		cout << "2: 删除" << endl;
+		cin >> choice;
+		Student::dspHeader();
+		cout << endl;
+		it->dsp();
+		cout << endl;
+		if (choice == '1') {
+
+			int year;
+			int selectionNo;
+			int classNo;
+			char name[100];
+			cout << "姓名:" << endl;
+			do {
+				cin.getline(name, 100);
+			} while (name[0] == '\0');
+			cout << "入学年份:" << endl;
+			cin >> year;
+			cout << "选科组合:" << endl;
+			cin >> selectionNo;
+			cout << "班级:" << endl;
+			cin >> classNo;
+			if (!cin.good()) {
+				throw InputError("输入字符非法!");
+			}
+			it->setInfo(year, selectionNo, classNo, name);
+			cout << "已修改" << endl;
+		}
+		else if (choice == '2') {
+			cout << "删除上述学生?(Y(是)/N(否))" << endl;
+			char yorn;
+			cin >> yorn;
+			if (yorn == 'y' || yorn == 'Y') {
+				Students.erase(it);
+			}
+			cout << "已删除" << endl;
+		}
+		cout << "b: 返回" << endl;
+		string tmp;
+		cin >> tmp;
+		goBack();
+	}
+}
+//status 15
+void::Manager::stuExportPage() {
+	cout << "主菜单-学生-导出" << endl;
+	string csvName;
+	cout << "请输入导出文件名:" << endl;
+	do {
+		getline(cin, csvName);
+	} while (csvName == "");	
+	csvName = csvName + ".csv";
+	ofstream csv(csvName);
+	if (!csv.good()) {
+		throw FileError("文件创建失败!");
+	}
+	Student::toCsvHeader(csv);
+	csv << '\n';
+	for (auto student = Students.begin(); student < Students.end(); student++) {
+		student->toCsv(csv);
+		csv << '\n';
+	}
+	string tmp;
+	cout << "导出成功" << endl;
+	cout << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 16
+void::Manager::stuImportPage() {
+	string fileName;
+	string tmp;
+	bool eof = false;
+	int firstRow=1;
+	int clsColumn, slcColumn, yearColumn,nameColumn;
+	cout << "主菜单-学生-导入" << endl;
+	cout << "请输入文件名称或路径，注意包含扩展名" << endl;
+	cin >> fileName;
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	ifstream csvFile(fileName);
+	if (!csvFile.good()) {
+		throw FileError("文件打开失败!");
+	}
+	cout << "请输入有效数据开始的行数: " << endl;
+	cin >> firstRow;
+	cout << "请输入学生姓名所在的列数: " << endl;
+	cin >> nameColumn;
+	cout << "请输入入学年份所在的列数: " << endl;
+	cin >> yearColumn;
+	cout << "请输入班号所在的列数: " << endl;
+	cin >> clsColumn;
+	cout << "请输入选科组合所在的列数: " << endl;
+	cin >> slcColumn;
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	for (int i = 1; i < firstRow; i++) {
+		getline(csvFile, tmp);
+	}
+	while (!eof) {
+		Student tmpStu(csvFile, yearColumn, clsColumn, slcColumn, nameColumn);
+		if (tmpStu.stuNoEqual(-1)) {
+			eof = true;
+			
+		}
+		else if (tmpStu.stuNoEqual(0)) {
+			continue;
+		}
+		else {
+			Students.push_back(tmpStu);
+		}
+	}
+
+	cout << "已导入" << endl;
+	cout << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 2
+void Manager::examPage() {
+	char choice = '0';
+	cout << "主菜单-考试" << endl;
+	cout << setw(6) << "编号";
+	Exam::dspHeader();
+	for (auto exam = Exams.begin(); exam < Exams.end(); exam++) {
+		cout << setw(4) << distance(Exams.begin(), exam) + 1;
+		(*exam)->dsp();
+	}
+	cout << endl;
+	cout << "请选择" << endl;
+	cout << "1: 添加考试" << endl;
+	cout << "2: 选择考试" << endl;
+	cout << "b: 返回" << endl;
+	cin >> choice;
+	switch (choice) {
+	case '1':
+		status = 21;
+		break;
+	case '2':
+		status = 22;
+		break;
+	case 'b':
+	case 'B':
+		goBack();
+		break;
+	}
+}
+//status 21
+void Manager::examAddPage() {
+	cout << "主菜单-考试-添加" << endl;
+	cout << "名称:" << endl;
+	char name[100];
+	do {
+		cin.getline(name, 100);
+	} while (name[0] == '\0');
+	auto p = make_shared<Exam>(name);
+	Exams.push_back(p);
+	cout << "添加成功!" << endl;
+	cout << "b: 返回" << endl;
+	string tmp;
+	cin >> tmp;
+	goBack();
+}
+//status 22
+void Manager::examChoosePage() {
+	int examNo;
+	string tmp;
+	cout << "主菜单-考试-选择" << endl;
+	cout << setw(6) << "编号";
+	Exam::dspHeader();
+	for (auto exam = Exams.begin(); exam < Exams.end(); exam++) {
+		cout << setw(6) << distance(Exams.begin(), exam) + 1;
+		(*exam)->dsp();
+	}
+	cout << endl;
+	cout << "编号:" << endl;
+	cin >> examNo;
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	examNo--;
+	if (examNo >= 0 && examNo < Exams.size()) {
+		currentExam = Exams.begin() + examNo;
+
+		status = 23;
+	}
+	else {
+		throw IndexError("编号无效!");
+	}
+}
+//status 23
+void Manager::examSubPage() {
+	cout << "主菜单-考试-";
+	(*currentExam)->dspName();
+	cout << endl;
+
+	cout << "请选择:" << endl;
+	cout << "1: 查看全部成绩" << endl;
+	cout << "2: 导出为CSV" << endl;
+	cout << "3: 新增成绩" << endl;
+	cout << "4: 删除成绩" << endl;
+	cout << "5: 修改考试名称" << endl;
+	cout << "6: 从CSV导入" << endl;
+	cout << "7: 删除此考试及其所有成绩信息" << endl;
+	cout << "b: 返回" << endl;
+	char choice = '0';
+	cin >> choice;
+	switch (choice) {
+	case '1':
+		status = 231;
+		break;
+	case '2':
+		status = 232;
+		break;
+	case '3':
+		status = 233;
+		break;
+	case '4':
+		status = 234;
+		break;
+	case '5':
+		status = 235;
+		break;
+	case '6':
+		status = 236;
+		break;
+	case '7':
+		status = 237;
+		break;
+	case 'b':
+	case 'B':
+		goBack();
+	}
+}
+//status 231
+void Manager::examViewPage() {
+
+	cout << "主菜单-考试-";
+	(*currentExam)->dspName();
+	cout << "-查看" << endl;
+	Item::dspHeader();
+	cout <<setw(6)<< "名次" << endl;
+	(*currentExam)->dspItems();
+	string tmp;
+	cout << endl << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 232
+void Manager::examExportPage() {
+
+	string csvName;
+
+	cout << "主菜单-考试-";
+	(*currentExam)->dspName();
+	cout << "-导出" << endl;
+	cout << "请输入导出文件名:" << endl;
+	do {
+		getline(cin, csvName);
+	} while (csvName == "");	
+	csvName = csvName + ".csv";
+	ofstream csv(csvName);
+	if (!csv.good()) {
+		throw FileError("文件创建失败!");
+	}
+	Item::toCsvHeader(csv);
+	csv << "名次" << endl;
+	(*currentExam)->toCsvItems(csv);
+	csv.close();
+	cout << "导出完成" << endl;
+	string tmp;
+	cout << endl << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 233
+void Manager::examAddRowPage() {
+	long long int studentNo;
+	double score[9];
+	char yorn;
+
+	cout << "主菜单-考试-";
+	(*currentExam)->dspName();
+	cout << "-新增成绩" << endl;
+
+	cout << "学号:" << endl;
+	cin >> studentNo;
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	if ((*currentExam)->itemExists(studentNo)) {
+		cout << "学号" << studentNo << "的成绩已存在, 是否覆盖? (Y(是)/N(否))" << endl;
+		cin >> yorn;
+		if (yorn != 'Y' && yorn != 'y') {
+			status = 23;
+			return;
+		}
+	}
+	cout << "数学:" << endl;
+	cin >> score[0];
+	cout << "语文:" << endl;
+	cin >> score[1];
+	cout << "英语:" << endl;
+	cin >> score[2];
+	cout << "物理:" << endl;
+	cin >> score[3];
+	cout << "化学:" << endl;
+	cin >> score[4];
+	cout << "生物:" << endl;
+	cin >> score[5];
+	cout << "历史:" << endl;
+	cin >> score[6];
+	cout << "政治:" << endl;
+	cin >> score[7];
+	cout << "地理:" << endl;
+	cin >> score[8];	
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	(*currentExam)->addItem(studentNo, score);
+	cout << "已添加" << endl;
+	string tmp;
+	cout << endl << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 234
+void Manager::examDelRowPage() {
+	char yorn;
+	long long int studentNo;
+	string tmp;
+
+	cout << "主菜单-考试-";
+	(*currentExam)->dspName();
+	cout << "-删除成绩" << endl;
+
+	cout << "学号:" << endl;
+	cin >> studentNo;
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	cout << "确认删除(Y(是)/N(否))" << endl;
+	cin >> yorn;
+	if (yorn == 'Y' || yorn == 'y') {
+		yorn=(*currentExam)->rmvItem(studentNo);
+		if (yorn) {
+			cout << "已删除" << endl;
+		}
+		else {
+			cout << "未找到" << endl;
+		}
+	}
+	else {
+		cout << "已取消" << endl;
+	}
+	cout << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 235
+void Manager::examNamePage() {
+	string tmp;
+	char name[100];
+	cout << "主菜单-考试-";
+	(*currentExam)->dspName();
+	cout << "-修改名称" << endl;
+	cout << "新名称:" << endl;
+	do {
+		cin.getline(name, 100);
+	} while (name[0] == '\0');
+	(*currentExam)->changeName(name);
+	cout << "已修改" << endl;
+	cout << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 236
+void Manager::examImportPage() {
+	string tmp;
+	string fileName;
+	int firstRow;
+	int stuNoColumn;
+	int scoreColumn[9];
+	bool eof=false;
+	char name[100];
+	cout << "主菜单-考试-";
+	(*currentExam)->dspName();
+	cout << "-导入" << endl;
+	cout << "注意，若此考试中已存在相同学号学生的成绩数据，从CSV导入的数据会将其覆盖" << endl;
+	cout << "请输入文件名称或路径，注意包含扩展名" << endl;
+	cin >> fileName;
+	ifstream csvFile(fileName);
+	if (!csvFile.good()) {
+		throw FileError("文件打开失败!");
+	}
+	cout << "请输入有效数据开始的行数: " << endl;
+	cin >> firstRow;
+	cout << "请输入学号所在的列数：" << endl;
+	cin >> stuNoColumn;
+	cout << "请输入数学、语文、英语、物理、化学、生物、历史、政治、地理成绩所在的列数，以空格分隔" << endl;
+	cin >> scoreColumn[0] >> scoreColumn[1] >> scoreColumn[2] >> scoreColumn[3] >> scoreColumn[4] >> scoreColumn[5] >> scoreColumn[6] >> scoreColumn[7] >> scoreColumn[8];
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	for (int i = 1; i < firstRow; i++) {
+		getline(csvFile, tmp);
+	}
+	while (!eof) {
+		Item tmpItem(csvFile, stuNoColumn, scoreColumn);
+		if (tmpItem.getStuNo()==-1) {			
+			eof = true;
+		}
+		else if(tmpItem.getStuNo()==0) {
+			continue;
+		}
+		else {
+			(*currentExam)->addItem(tmpItem);
+		}
+	}
+
+	cout << "已导入" << endl;
+	cout << "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
+//status 237
+void Manager::examRmvPage() {
+	string tmp;
+
+	cout << "主菜单-考试-";
+	(*currentExam)->dspName();
+	cout << "-删除考试" << endl;
+	cout << "你确定要删除考试\"";
+	(*currentExam)->dspName();
+	cout<< "\"吗" << endl;
+	cout << "输入 \"confirm\" 以确认删除" << endl;
+	cin >> tmp;
+	if (tmp == "confirm") {
+		(*currentExam)->rm();
+		Exams.erase(currentExam);
+		currentExam = Exams.begin();
+		goBack();
+		goBack();
+		cout << "已删除" << endl;
+	}
+	else {
+		goBack();
+		cout << "已取消" << endl;
+	}
+	cout << "b: 返回" << endl;
+	cin >> tmp;
+
+}
+//status 3
+void Manager::stuPfmPage() {
+	long long int studentNo;
+	cout << "主菜单-学生成绩查询" << endl;
+	cout << "学号:" << endl;
+	cin >> studentNo;
+	if (!cin.good()) {
+		throw InputError("输入字符非法!");
+	}
+	Student::dspHeader();
+	cout << endl;
+	if (searchByNo(studentNo) == nullptr) {
+		cout << setw(20) << "未找到数据" << endl;
+	}
+	else {
+		searchByNo(studentNo)->dsp();
+	}
+	cout << endl << endl;
+	cout << "历次考试成绩:" << endl<<endl;
+	cout << setw(20) << "考试名称";
+	Item::dspHeader(0);
+	cout << setw(6) << "名次" << endl;
+	for (auto exam = Exams.begin(); exam < Exams.end(); exam++) {
+		auto item = (*exam)->StudentInquiry(studentNo);
+		(*exam)->dspName(20);
+		if (item == nullptr) {
+			cout << setw(20) << "未找到数据" << endl;
+		}
+		else {
+			item->dsp(0);
+			cout << setw(6)<<(*exam)->getStuRanking(*item)<<endl;
+		}
+	}
+	string tmp;
+	cout <<endl<< "b: 返回" << endl;
+	cin >> tmp;
+	goBack();
+}
diff --git a/Manager.h b/Manager.h
new file mode 100644
index 0000000..e261281
--- /dev/null
+++ b/Manager.h
@@ -0,0 +1,67 @@
+#pragma once
+#include<fstream>
+#include<iomanip>
+#include<iostream>
+#include<string>
+#include<vector>
+#include<windows.h>
+#include"Student.h"
+#include"Exam.h"
+using namespace std;
+class Manager {
+public:
+	Manager();
+
+	void mainLoop();
+	void goBack();
+	void centeredPrint(const string& content);
+	Student* searchByNo(long long int studentNo);
+	//status 0
+	void welcomePage();
+	//status 1                                                         
+	void stuPage();
+	//status 11
+	void stuDspPage();
+	//status 12
+	void stuAddPage();
+	//status 13
+	void stuSearchPage();
+	//status 14
+	void stuEdtRmvPage();
+	//status 15
+	void stuExportPage();
+	//status 16
+	void stuImportPage();
+	//status 2
+	void examPage();
+	//status 21
+	void examAddPage();
+	//status 22
+	void examChoosePage();
+	//status 23
+	void examSubPage();
+	//status 231
+	void examViewPage();
+	//status 232
+	void examExportPage();
+	//status 233
+	void examAddRowPage();
+	//status 234
+	void examDelRowPage();
+	//status 235
+	void examNamePage();
+	//status 236
+	void examImportPage();
+	//status 237
+	void examRmvPage();
+	//status 3
+	void stuPfmPage();
+
+	virtual ~Manager();
+private:
+	int status = 0;
+	int ExamNum = 0, StudentNum = 0;
+	vector<Student> Students;
+	vector<std::shared_ptr<Exam>> Exams;
+	vector<std::shared_ptr<Exam>>::iterator currentExam = Exams.begin();
+};
\ No newline at end of file
diff --git a/Student.cpp b/Student.cpp
new file mode 100644
index 0000000..6eb1c9a
--- /dev/null
+++ b/Student.cpp
@@ -0,0 +1,124 @@
+#include"Student.h"
+#include"Manager.h"
+#pragma warning(disable:4996)
+using namespace std;
+extern Manager mainManager;
+Student::Student(int year, int selectionNo, int classNo, char name[]) :year(year), selectionNo(selectionNo), classNo(classNo), serialNo(serialNo) {
+	strcpy_s(this->name, name);
+	studentNo = infoToNo(year, selectionNo, classNo);
+	serialNo = studentNo % 100;
+}
+Student::Student(long long int studentNo) {
+	this->studentNo = studentNo;
+	strcpy(this->name, "查无此人");
+	year = 0;
+	selectionNo = 0;
+	classNo = 0;
+	serialNo = 0;
+}
+Student::Student(ifstream& csv, int yearColumn, int clsColumn, int slcColumn,int nameColumn) {
+	string line, tmp;
+	vector<string> tmpvector;
+	if (!getline(csv, line)) {
+		studentNo = -1;
+		return;
+	}
+	stringstream linestream(line);
+	while (getline(linestream, tmp, ',')) {
+		tmpvector.push_back(tmp);
+	};
+	try {
+		year = stoi(tmpvector.at(yearColumn - 1));
+	}
+	catch (const exception& e) {
+		year = 0;
+	}
+	try {
+		classNo = stoi(tmpvector.at(clsColumn - 1));
+	}
+	catch (const exception& e) {
+		classNo = 0;
+	}
+	try {
+		selectionNo = stoi(tmpvector.at(slcColumn - 1));
+	}
+	catch (const exception& e) {
+		selectionNo = 0;
+	}
+	strcpy(this->name, tmpvector.at(nameColumn - 1).c_str());
+	if (year != 0 && classNo != 0 && selectionNo != 0) {
+		studentNo = infoToNo(year, selectionNo, classNo);
+		serialNo = studentNo % 100;
+	}
+	else {
+		studentNo = 0;
+		serialNo = 0;
+	}
+}
+void Student::dspHeader() {
+	cout << setw(10) << "姓名" << setw(12) << "学号" << setw(10) << "入学年份" << setw(5) << "班级" << setw(5) << "选科";
+}
+void Student::dsp() const {
+	cout << setw(10) << name << setw(12) << studentNo << setw(10) << year << setw(5) << classNo << setw(5) << selectionNo;
+}
+void Student::toCsvHeader(ofstream& csv) {
+	csv<< "姓名,"<< "学号,"<< "入学年份,"<< "班级," << "选科,";
+}
+void Student::toCsv (ofstream& csv) const {
+	csv << name << ',' << studentNo << ',' << year << ',' << classNo << ',' << selectionNo << ',';
+}
+void Student::setInfo(int year, int selectionNo, int classNo, char name[]) {
+	this->year = year;
+	this->selectionNo = selectionNo;
+	this->classNo = classNo;
+	strcpy(this->name, name);
+}
+bool Student::stuNoEqual(long long int studentNo) const {
+	if (this->studentNo == studentNo) {
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+bool Student::slcNoEqual(int selectionNo) const {
+	if (this->selectionNo == selectionNo) {
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+bool Student::clsNoEqual(int classNo) const {
+	if (this->classNo == classNo) {
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+bool Student::nameEqual(char name[]) const {
+	if (strcmp(this->name, name) == 0) {
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+bool Student::yearEqual(int year) const {
+	if (this->year == year) {
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+long long int Student::infoToNo(int year, int selectionNo, int classNo) {
+	long long int initNo = year * 1000000 + selectionNo * 10000 + classNo * 100 + 1;
+	for (auto i = initNo; i < initNo + 99; i++) {
+		if (mainManager.searchByNo(i) == nullptr) {
+			return i;
+		}
+	}
+	return -1;
+}
diff --git a/Student.h b/Student.h
new file mode 100644
index 0000000..3f96775
--- /dev/null
+++ b/Student.h
@@ -0,0 +1,36 @@
+#pragma once
+#include<fstream>
+#include<iomanip>
+#include<iostream>
+#include<string>
+#include<vector>
+using namespace std;
+
+class Student {
+public:
+	Student(int year, int selectionNo, int classNo, char name[]);
+	Student(long long int studentNo);
+	Student(ifstream& csv, int yearColumn, int clsColumn, int slcColumn,int nameColumn);
+	Student(){}
+
+	void setInfo(int year, int selectionNo, int classNo, char name[]);
+	bool stuNoEqual(long long int studentNo) const;
+	bool slcNoEqual(int selectionNo) const;
+	bool clsNoEqual(int classNo) const;
+	bool yearEqual(int year) const;
+	bool nameEqual(char name[]) const;	
+	static void dspHeader();
+	void dsp() const;
+	static void toCsvHeader(ofstream& csv);
+	void toCsv(ofstream& csv) const;
+	static long long int infoToNo(int year,int selectionNo, int classNo);
+	
+	virtual ~Student(){};
+private:
+	long long int studentNo;
+	char name[100];
+	int year;
+	int selectionNo;
+	int classNo;
+	int serialNo;
+};
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..118fb42
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,8 @@
+#include"Exam.h"
+#include"Student.h"
+#include"Manager.h"
+Manager mainManager;
+using namespace std;
+int main() {
+	mainManager.mainLoop();
+}
\ No newline at end of file