一级标题 基于STL演讲比赛流程管理系统c++
1、 演讲比赛程序需求 1.1 比赛规则 学校举行一场演讲比赛,共有12个人参加。比赛共两轮,第一轮为淘汰赛,第二轮为决赛。 比赛方式:分组比赛,每组6个人;选手每次要随机分组,进行比赛 每名选手都有对应的编号,如 10001 ~ 10012 第一轮分为两个小组,每组6个人。 整体按照选手编号进行抽签后顺序演讲。 当小组演讲完后,淘汰组内排名最后的三个选手,前三名晋级,进入下一轮的比赛。 第二轮为决赛,前三名胜出 每轮比赛过后需要显示晋级选手的信息 1.2 程序功能 开始演讲比赛:完成整届比赛的流程,每个比赛阶段需要给用户一个提示,用户按任意键后继续下一个阶段 查看往届记录:查看之前比赛前三名结果,每次比赛都会记录到文件中,文件用.csv后缀名保存 清空比赛记录:将文件中数据清空 退出比赛程序:可以退出当前程序
该文件共有两个.h头文件 两个.cpp源文件 其中的.csv文件用于保存比赛后每届冠亚军信息
代码如下 其中有些注释掉的代码为中间写时 为测试写的测试代码
1.主函数代码
#include<iostream>
using namespace std;
#include<string>
#include"speechManager.h"
#include<ctime>
int main()
{
srand((unsigned int)time(NULL));
SpeechManager sm;
int choice = 0;
while (true)
{
sm.show_Menu();
cout << "请输入您的选择:" << endl;
cin >> choice;
switch (choice)
{
case 1:
sm.startSpeech();
break;
case 2:
sm.showRecord();
break;
case 3:
sm.clearRecord();
break;
case 0:
sm.existSystem();
break;
default:
system("cls");
break;
}
}
system("pause");
return 0;
}
2.参与选手类speaker.h此头文件不需要源文件实现部分
#pragma once
#include<iostream>
using namespace std;
#include<string>
class Speaker
{
public:
string m_Name;
double m_Score[2];
};
3.speakerManager.h为功能实现部分
#pragma once
#include<iostream>
using namespace std;
#include<vector>
#include<map>
#include<algorithm>
#include<deque>
#include<numeric>
#include<string>
#include<fstream>
#include"speaker.h"
class SpeechManager
{
public:
SpeechManager();
void show_Menu();
void existSystem();
~SpeechManager();
void initSpeech();
void createSpeaker();
void startSpeech();
void speechDraw();
void speechContest();
void show_Score();
void saveRecord();
void loadRecord();
void showRecord();
void clearRecord();
bool fileIsEmpty;
map<int, vector<string>>m_Record;
vector<int>v1;
vector<int>v2;
vector<int>vVictory;
map<int, Speaker>m_Speaker;
int m_Index;
};
3.speakerManager.cpp为speakerManager.h函数实现部分
#include"speechManager.h"
SpeechManager::SpeechManager()
{
this->initSpeech();
this->createSpeaker();
this->loadRecord();
}
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;
}
void SpeechManager::existSystem()
{
cout << "欢迎下次使用!" << endl;
system("pause");
exit(0);
}
void SpeechManager::initSpeech()
{
this->v1.clear();
this->v2.clear();
this->vVictory.clear();
this->m_Speaker.clear();
this->m_Index = 1;
this->m_Record.clear();
}
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;
for (int j = 0; j < 2; j++)
{
sp.m_Score[j] = 0;
}
this->v1.push_back(i + 100001);
this->m_Speaker.insert(make_pair(i + 10001, sp));
}
}
void SpeechManager::startSpeech()
{
this->speechDraw();
this->speechContest();
this->show_Score();
this->m_Index++;
this->speechDraw();
this->speechContest();
this->show_Score();
this->saveRecord();
this->initSpeech();
this->createSpeaker();
this->loadRecord();
cout << "本届比赛完毕!" << endl;
system("pause");
system("cls");
}
void SpeechManager::speechDraw()
{
cout << "第 << " << this->m_Index << " >> 轮比赛选手正在抽签" << endl;
cout << "------------------------" << endl;
cout << "抽签后的演讲顺序如下: " << endl;
if (this->m_Index == 1)
{
random_shuffle(v1.begin(), v1.end());
for (vector<int>::iterator it = v1.begin(); it != v1.end(); it++)
{
cout << *it << " ";
}
cout << endl;
}
else
{
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");
cout << endl;
}
void SpeechManager::speechContest()
{
cout << " ---------第 " << this->m_Index << " 轮比赛正式开始-----------" << endl;
multimap<double, int, greater<double>>groupScore;
int num = 0;
vector<int>v_Src;
if (this->m_Index == 1)
{
v_Src = v1;
}
else
{
v_Src = v2;
}
for (vector<int>::iterator it = v_Src.begin(); it != v_Src.end(); it++)
{
num++;
deque<double>d;
for (int i = 0; i < 10; i++)
{
double score = (rand() % 401 + 600) / 10.f;
d.push_back(score);
}
sort(d.begin(), d.end(), greater<int>());
d.pop_front();
d.pop_back();
double sum = accumulate(d.begin(), d.end(),0.0f);
double avg = sum / (double)d.size();
this->m_Speaker[*it].m_Score[this->m_Index - 1] = avg;
groupScore.insert(make_pair(avg, *it));
if (num % 6 == 0)
{
cout << " 第 " << num / 6 << "小组比赛名次: " << 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 << " 成绩:"
<< this->m_Speaker[it->second].m_Score[m_Index - 1] << endl;
}
int count = 0;
for (multimap<double, int, greater<double>>::iterator it = groupScore.begin(); it != groupScore.end()&&count<3; it++,count++)
{
if (this->m_Index == 1)
{
v2.push_back((*it).second);
}
else
{
vVictory.push_back((*it).second);
}
}
groupScore.clear();
cout << endl;
}
}
cout << "--------第" << this->m_Index << "轮比赛完毕!------------" << endl;
system("pause");
}
void SpeechManager::show_Score()
{
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 = vVictory;
}
for (vector<int>::iterator it = v.begin(); it != v.end(); it++)
{
cout << " 选手编号:" << *it << " 姓名:" << this->m_Speaker[*it].m_Name << " 得分 "
<< this->m_Speaker[*it].m_Score[m_Index - 1] << endl;
}
cout << endl;
system("pause");
system("cls");
this->show_Menu();
}
void SpeechManager::saveRecord()
{
ofstream ofs;
ofs.open("speech.csv", ios::out | ios::app);
for (vector<int>::iterator it = vVictory.begin(); it != vVictory.end(); it++)
{
ofs << *it << "," << this->m_Speaker[*it].m_Score[1] << ",";
}
ofs<< endl;
ofs.close();
cout << "文件已经保存" << endl;
this->fileIsEmpty = false;
}
void SpeechManager::loadRecord()
{
ifstream ifs("speech.csv", ios::in);
if (!ifs.is_open())
{
this->fileIsEmpty = true;
ifs.close();
return;
}
char ch;
ifs >> ch;
if (ifs.eof())
{
this->fileIsEmpty = true;
ifs.close();
return;
}
this->fileIsEmpty = false;
ifs.putback(ch);
string data;
int index = 0;
while (ifs >> data)
{
vector<string>v;
int pos = -1;
int start = 0;
while (true)
{
pos=data.find(",", start);
if (pos == -1)
{
break;
}
string temp=data.substr(start, pos - start);
v.push_back(temp);
start = pos + 1;
}
this->m_Record.insert(make_pair(index, v));
index++;
;
}
ifs.close();
}
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] << " "
<< "冠军编号:" << this->m_Record[i][4] << " 得分 :" << this->m_Record[i][5] << endl;
}
}
system("pause");
system("cls");
}
void SpeechManager::clearRecord()
{
cout << "是否确定清空文件?" << endl;
cout << "1.是"<<endl;
cout << "2.否" << endl;
int select = 0;
cin >> select;
if (select == 1)
{
ofstream ofs("speech.csv", ios::trunc);
ofs.close();
this->initSpeech();
this->createSpeaker();
this->loadRecord();
cout << "清空成功!" << endl;
}
system("pause");
system("cls");
}
SpeechManager::~SpeechManager()
{
}
在vs2019上为这样 运行起来界面 选择二可查看往届选手信息 选择csv文件可由excel查看 也可以用记事本 写字板查看 下面展示一下用excel打开文件
从其b站上按照视频奋战了一天一个一个敲的 点击进入 第二百六十四集开始 该案例中的对stl的用法讲解很全面。 和大家一起学习。 文章中可能会有很多问题, 希望和大家一起进步!
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