基于STL的演讲比赛流程管理系统-C++语言结课大作业（黑马案列）

项目结构

speaker.h

#pragma once
#include
using namespace std;

class Speaker {

public:
	string m_Name;
	double m_Score[2];
};

speechManager.h

#pragma once
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
using namespace std;

#include "speaker.h"

class SpeechManager {
public:

	//构造函数
	SpeechManager();

	//显示菜单
	void show_Menu();

	//初始化成员属性
	void initSpeech();
	//创建12名选手
	void createSpeaker();

	//开始比赛 比赛整个流程的控制函数
	void startSpeech();

	//1.第一轮比赛
	//1.抽签
	void speechDraw();
	//2.比赛
	void speechContest();
	//3.显示晋级结果
	void showScore();

	//保存文件
	void saveRecord();

	//读取记录
	void loadRecord();
	//判断文件是否为空
	bool fileIsEmpty;
	//存放往届记录的容器
	map<int, vector<string>> m_Record;

	//显示记录
	void showRecord();

	//清空记录
	void clearRecord();

	//退出系统
	void exist_System();

	//析构函数
	~SpeechManager();


	//成员属性
	//第一轮选手编号的容器
	vector<int> v1;
	//第二轮选手编号的容器
	vector<int> v2;

	//胜出前三名的选手编号的容器
	vector<int> vVictor;
	//存放编号以及选手信息的容器
	map<int, Speaker> m_Speaker;
	//记录比赛轮数的变量
	int m_Index;

};

speechManager.app

#include "speechManager.h"

//构造函数
SpeechManager::SpeechManager() {

	//初始化属性
	this->initSpeech();
	//创建12名选手
	this->createSpeaker();

	//加载已存在文件中的数据到内存里面
	this->loadRecord();
}

//显示菜单
void SpeechManager::show_Menu() {

	cout << "********************************************" << endl;
	cout << "*************  欢迎参加演讲比赛 ************" << endl;
	cout << "*************  1.开始演讲比赛  *************" << endl;
	cout << "*************  2.查看往届记录  *************" << endl;
	cout << "*************  3.清空比赛记录  *************" << endl;
	cout << "*************  0.退出比赛程序  *************" << endl;
	cout << "********************************************" << endl;
	cout << endl;

}

//初始化成员属性和容器的函数
void SpeechManager::initSpeech() {
	this->v1.clear();
	this->v2.clear();
	this->vVictor.clear();
	this->m_Speaker.clear();

	this->m_Index = 1;

	//记录容器清空
	this->m_Record.clear();

}

//创建12名选手
void SpeechManager::createSpeaker() {
	string nameSeed = "ABCDEFGHIJKL";
	for (int i = 0; i < nameSeed.size(); i++) {
		string name = "选手";
		name += nameSeed[i];

		Speaker sp;
		sp.m_Name = name;
		sp.m_Score[0]=0;
		sp.m_Score[1] = 0;
		
		//创建选手的编号放到v1容器中去
		this->v1.push_back(i + 10001);

		this->m_Speaker.insert(make_pair(i+10001 , sp));

	}
}


//开始比赛 比赛整个流程的控制函数
void SpeechManager::startSpeech() {

	//第一轮比赛
	//1、抽签
	this->speechDraw();
	//2、比赛
	this->speechContest();

	//3、显示晋级结果
	this->showScore();

	//第二轮比赛
	this->m_Index++;
	//1、抽签
	this->speechDraw();
	//2、比赛
	this->speechContest();
	//3、显示最终结果
	this->showScore();
	//4、保存分数
	this->saveRecord();

	//重置比赛 实时更新
	//初始化属性
	this->initSpeech();
	//创建12名选手
	this->createSpeaker();
	//加载已存在文件中的数据到内存里面
	this->loadRecord();


	cout << "本届比赛完毕" << endl;
	system("pause");
	system("cls");
}

//1.第一轮比赛
//1.抽签
void SpeechManager::speechDraw() {
	cout << "第<<" << this->m_Index << ">>轮的比赛选手正在抽签" << endl;
	cout << "-----------------------------" << endl;
	cout << "抽签后的顺序如下:" << endl;
	if (this->m_Index == 1) {
		//第一轮比赛
		random_shuffle(v1.begin(),v1.end());
		for (vector<int>::iterator it = v1.begin(); it != v1.end(); it++) {
			cout << *it << " ";
		}
		cout << endl;
	}
	else {
		//第二轮比赛
		random_shuffle(v2.begin(), v2.end());
		for (vector<int>::iterator it = v2.begin(); it != v2.end(); it++) {
			cout << *it << " ";
		}
		cout << endl;
		
	}

	cout << "-------------------------" << endl;
	system("pause");
	//system("cls");

}
//2.比赛
void SpeechManager::speechContest() {
	cout << "第<<" << this->m_Index << ">>轮的比赛正式开始：" << endl;
	cout << "-----------------------------" << endl;
	
	int num = 0;//记录小组人员的个数
	//准备临时容器存放小组成绩 自动从大到小排序
	multimap<double, int, greater<double> > groupScore;


	vector<int> v_Src;//存放比赛选手的临时容器
	if (this->m_Index == 1) {
		v_Src = v1;//内置数据类型 不需要重写==
	}
	else {
		v_Src = v2;
	}

	//遍历所有的选手开始比赛
	for (vector<int>::iterator it = v_Src.begin(); it != v_Src.end(); it++) {

		num++;//统计是6个人还是12个人

		//评委打分
		deque<double> d;
		//cout << "第" << *it << "编号的选手的10个评委的打分如下：" << endl;
		for (int i = 0; i < 10; i++) {
			double score = (rand() % 401 + 600) / 10.f;
			//cout << score << " ";
			d.push_back(score);
		}
		//cout << endl;
		//排序 去除最高最低分 然后求平均分
		sort(d.begin(), d.end(), greater<double>());
		d.pop_front();
		d.pop_back();

		double sum = accumulate(d.begin(), d.end(), 0.0f);
		double avg = sum / (double)d.size();

		//将平均分放到map容器中去
		this->m_Speaker[*it].m_Score[this->m_Index - 1] = avg;

		

		//将打分数据放到临时小组的容器中去
		groupScore.insert(make_pair(avg,*it));

		//每六个人去前三名
		if (num % 6 == 0) {
			cout << "第" << num / 6 << "小组的比赛名次如下：" << endl;
			for (multimap<double, int, greater<double> >::iterator it = groupScore.begin(); it != groupScore.end(); it++) {
				cout << "编号：" << it->second << " " << "姓名：" << this->m_Speaker[it->second].m_Name << " " << "比赛成绩:" << this->m_Speaker[it->second].m_Score[this->m_Index - 1] << endl;

			}
			cout << endl;

			//取走前三名放到下一个容器当中
			int count = 0;
			for (multimap<double, int, greater<double> >::iterator it = groupScore.begin(); it != groupScore.end(); it++) {
				if (count < 3) {
					if (this->m_Index == 1) {
						v2.push_back((*it).second);
					}
					else {
						vVictor.push_back((*it).second);
					}

				}
				count++;
			}


			groupScore.clear();
		}



	}
	cout << "-----------第" << this->m_Index << "轮比赛完毕-------" << endl;
	system("pause");
}

//3.显示晋级结果
void SpeechManager::showScore() {
	cout << "---------第" << this->m_Index << "轮晋级选手信息如下：-----------" << endl;
	vector<int> v;
	if (this->m_Index == 1) {
		v = v2;
	}
	else {
		v = vVictor;
	}

	for (vector<int> ::iterator it = v.begin(); it != v.end(); it++) {
		cout << "编号：" <<*it<< " " << "姓名：" << this->m_Speaker[*it].m_Name << " " << "比赛成绩:" << this->m_Speaker[*it].m_Score[this->m_Index - 1] << endl;

	}
	cout << endl;
	system("pause");
	system("cls");
	this->show_Menu();
}

//保存分数文件
void SpeechManager::saveRecord() {
	ofstream ofs;
	ofs.open("speech.csv",ios::out | ios::app);//用追加的方式写

	for (vector<int> ::iterator it = vVictor.begin(); it != vVictor.end(); it++) {
		ofs << *it << "," << this->m_Speaker[*it].m_Score[1] << ",";
	}
	ofs << endl;
	ofs.close();
	cout << "记录保存完毕" << endl;

	//更改记录
	this->fileIsEmpty = false;
}

//读取记录
void SpeechManager::loadRecord() {
	ifstream ifs ("speech.csv", ios::in);

	if (!ifs.is_open()) {
		this->fileIsEmpty = true;
		cout << "文件不存在" << endl;
		ifs.close();
		return;
	}

	//文件情况
	char ch;
	ifs >> ch;
	if (ifs.eof()) {
		cout << "文件为空" << endl;
		this->fileIsEmpty = true;
		ifs.close();
		return;
	}
	//文件不为空
	this->fileIsEmpty = false;
	ifs.putback(ch);//将上面读取的单个字符再放回来

	string data;
	int index=0;
	while (ifs >> data) {//读取一行

		//cout << data << endl;
		//分割数据放到vector容器中去
		vector<string>v;

		int pos = -1;
		int start = 0;

		while (true)
		{
			pos = data.find(",", start); //从0开始查找 ','
			if (pos == -1)
			{
				break; //找不到break返回
			}
			string tmp = data.substr(start, pos - start); //找到了,进行分割 参数1 起始位置，参数2 截取长度
			v.push_back(tmp);
			start = pos + 1;
		}

		this->m_Record.insert(make_pair(index, v));
		index++;

	}
	ifs.close();
}

//显示往届的记录
void SpeechManager::showRecord() {

	

	if (this->fileIsEmpty) {
		cout << "文件为空，或者文件不存在" << endl;
	}
	else {
		for (int i = 0; i < this->m_Record.size(); i++)
		{
			cout << "第" << i + 1 << "届 " <<
				"冠军编号：" << this->m_Record[i][0] << " 得分：" << this->m_Record[i][1] << " "
				"亚军编号：" << this->m_Record[i][2] << " 得分：" << this->m_Record[i][3] << " "
				"季军编号：" << this->m_Record[i][4] << " 得分：" << this->m_Record[i][5] << endl;
		}
	}

	
	system("pause");
	system("cls");
}


//清空记录
void SpeechManager::clearRecord() {
	cout << "确认清空？" << endl;
	cout << "1、确认" << endl;
	cout << "2、返回" << endl;

	int select = 0;
	cin >> select;

	if (select == 1)
	{
		//打开模式 ios::trunc 如果存在删除文件并重新创建
		ofstream ofs("speech.csv", ios::trunc);
		ofs.close();

		//初始化属性
		this->initSpeech();

		//创建选手
		this->createSpeaker();

		//获取往届记录
		this->loadRecord();


		cout << "清空成功！" << endl;
	}

	system("pause");
	system("cls");
}

//退出系统
void SpeechManager::exist_System() {

	cout << "欢迎下次使用" << endl;
	system("pause");
	exit(0);

}


//析构函数
SpeechManager::~SpeechManager() {

}

演讲比赛流程管理系统.app

#include "speechManager.h"

int main() {

	SpeechManager sm;
	srand((unsigned int)time(NULL));
	
	int choice = 0;
	while (true) {
		sm.show_Menu();
		cout << "请输入你的选择：" << endl;
		cin >> choice;

		switch (choice)
		{
		case 1:
			sm.startSpeech();
			break;
		case 2:
			sm.showRecord();
			break;
		case 3:
			sm.clearRecord();
			break;
		case 0:
			sm.exist_System();
			break;
		default:
			system("cls");
			break;
		}



	}



	system("pause");
	return 0;
}