C++ 基于STL的演讲比赛管理系统 工程源码+详细注释

#include "speechManager.h" //构造函数, speechManager::speechManager() { //初始化属性 this->initSpeech(); //创建选手 this->createSpeaker(); //加载往届记录 this->loadRecord(); } //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 << endl; } //退出系统 void speechManager::exitSystem() { cout << "欢迎下次使用" << endl; system("pause"); exit(0); } //初始化属性 void speechManager::initSpeech() { //保证容器为空 this->v1.clear(); this->v2.clear(); this->victor.clear(); this->m_speaker.clear(); //初始化比赛轮数 this->m_Index = 1; //初始化记录容器(在查看往届记录过程中，临时记录) this->m_Record.clear(); } //创建选手 void speechManager::createSpeaker() { string nameSeed = "ABCDEFGHIJKL"; speaker sp;//创建具体选手 for (int i = 0; i < 12; i++) { string name = "选手";//若定义在循环外，则nameSeed[i]会累加 name += nameSeed[i]; //选手姓名成绩赋值 sp.m_name = name; for (int i = 0; i < 2; i++) sp.m_score[i] = 0; //12名选手编号 放入容器 this->v1.push_back(i + 10001); //编号及对应选手姓名成绩 放入容器 this->m_speaker.insert(make_pair(i + 10001, sp)); } } //显示选手编号v1,v2 void speechManager::show_number(vector<int>&v) { vector<int>::iterator it = v.begin(); for (; it != v.end(); it++) cout << *it << " "; cout << endl; } //显示选手信息 void speechManager::show_Speaker() { map<int, speaker>::iterator it = this->m_speaker.begin(); for (; it != this->m_speaker.end(); it++) cout << "选手编号：" << it->first << " " << "姓名：" << it->second.m_name << " " << "成绩：" << it->second.m_score[0] << endl; } //开始比赛 void speechManager::startSpeech() { //第一轮比赛 //1、抽签 speechDraw(); //2、比赛 speechContest(); //3、显示晋级结果 showScore(); //第二轮比赛 this->m_Index++; //1、抽签 speechDraw(); //2、比赛 speechContest(); //3、显示最终结果 showScore(); //4、保存分数 saveRecord(); //下面这三行，内容和构造函数一样，但不能把构造函数写这里 //重置初始化数据：更新本届比赛到历史记录，创建新选手 //初始化属性 this->initSpeech(); //创建选手（为下一届创建新选手） this->createSpeaker(); //加载往届记录（本届比赛记录，实时更新） this->loadRecord(); cout << "本届比赛完毕！" << endl; system("pause"); system("cls"); } //抽签 void speechManager::speechDraw() { cout << "第<< " << this->m_Index << " >> 轮选手比赛抽签" << endl; cout << "----------------------------------------" << endl; cout << "抽签后演讲顺序如下：" << endl; if (this->m_Index == 1) { random_shuffle(this->v1.begin(),this->v1.end()); show_number(v1); } else { random_shuffle(this->v2.begin(), this->v2.end()); show_number(v2); } cout << "----------------------------------------" << endl; system("pause"); cout << endl; } //比赛 void speechManager::speechContest() { cout << "---------------第" << this->m_Index << "轮比赛正式开始：-------------" << endl; multimap<double, int, greater<int>> groupScore;//临时容器，记录每组6人成绩；key成绩，value编号，按成绩降序排列 int num = 0;//记录人员数 每6人一组 vector<int> v;//比赛人员容器 if (this->m_Index == 1) v = v1; if (this->m_Index == 2) v = v2; //遍历所有参赛选手 for (vector<int>::iterator it = v.begin(); it != v.end(); it++) { num++; //10名评委打分 deque<double>d; for (int i = 0; i < 10; i++) { double score = (rand() % 401 + 600) / 10.f;//600~1000分，除以10.f得到60~100的浮点分数 d.push_back(score); } //排序,去掉一个最低分，去掉一个最高分 sort(d.begin(), d.end(), greater<double>()); d.pop_back(); d.pop_front(); //取平均分 double sum = accumulate(d.begin(),d.end(),0.0f); double average = sum / d.size(); //成绩和对应选手存入speaker this->m_speaker[*it].m_score[this->m_Index - 1] = average; //6人一组用临时容器存储 groupScore.insert(make_pair(average,*it)); if (num % 6 == 0) { cout << "第" << num / 6 << "小组比赛名次：" << endl; multimap<double, int, greater<int>>::iterator it = groupScore.begin(); for (; it != groupScore.end(); it++) { cout << "编号：" << it->second << " " << "姓名：" << this->m_speaker[it->second].m_name << " " //<< "成绩：" << it->first << endl;//不对 << "成绩：" << this->m_speaker[it->second].m_score[this->m_Index - 1]<<endl; } int count = 0; //取前三名 it = groupScore.begin(); for (; it != groupScore.end() && count < 3; it++, count++) { if (this->m_Index == 1) v2.push_back((*it).second);//第一轮每组前三名晋级 else { victor.push_back((*it).second);//第二轮，胜出前三名 } } groupScore.clear(); cout << endl; } } cout << "---------------第" << this->m_Index << "轮比赛结束：-------------" << endl; system("pause"); } //显示比赛分数 void speechManager::showScore() { cout << "\n---------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 = victor; vector<int>::iterator it = v.begin(); for (; it != v.end(); it++) { cout << "编号：" << *it << " 姓名：" << this->m_speaker[*it].m_name << " 得分：" << this->m_speaker[*it].m_score[this->m_Index - 1] << endl; } cout << endl; system("pause"); system("cls"); this->show_Menu();//进入第二轮时，显示菜单信息 } //保存记录 void speechManager::saveRecord() { ofstream ofs;//#include<fstream> //.csv模式 可以excel和记事本打开，，，注意：这里是按位或，不是逻辑或，刚开始写成逻辑或，文件下都创建不了ios::out | ios::app ofs.open("speech.csv",ios::out | ios::app);//输出方式打开文件，写模式或追加写模式 vector<int>::iterator it = this->victor.begin(); for (; it != this->victor.end(); it++) { //Excel以逗号分格，逗号另一个作用在读取往届记录时，以逗号分割字符串 ofs << *it << "," << this->m_speaker[*it].m_name<<","<< m_speaker[*it].m_score[1] << ","; } ofs << endl; ofs.close(); cout << "记录已保存 " << endl; //更改文件不为空标志 this->fileIsEmpty = false; } //读取记录 void speechManager::loadRecord() { ifstream ifs("speech.csv",ios::in);//输入流对象 读取文件 //文件不存在 if (!ifs.is_open()) { this->fileIsEmpty = true; cout << "文件不存在！" << endl; ifs.close(); return; } //文件存在，但为空 char ch; ifs >> ch; if (ifs.eof()) {//文件结尾 eof ,end of file,"文件结束" //cout << "文件为空 ！" << endl; this->fileIsEmpty = true; ifs.close(); return; } //文件存在，且不为空 this->fileIsEmpty = false; ifs.putback(ch);//若文件不为空，将刚才读走的字符再放回来 string data; int index = 0;//记录第几届 while (ifs >> data) { vector<string> v; int pos = -1; int start = 0; //cout << data << endl;//记录输出测试 while (true) { pos = data.find(",",start);//从下标0开始查找"," //若没找到，退出while;;;字符串全部分割完毕，退出while if (pos == -1) break; //若找到,进行分割 string temp = data.substr(start,pos - start); v.push_back(temp); start = pos + 1; } this->m_Record.insert(make_pair(index, v));//index届数，v存储每一届3名获胜者信息 index++;//届数加1 } ifs.close(); ////测试 //map<int, vector<string>>::iterator it = this->m_Record.begin(); //for (; it != this->m_Record.end(); it++) { // cout << "第" << it->first + 1 << "届最终获胜前三名： " << endl // << it->second[0] << " " << it->second[1] << " " << it->second[2] << endl // << it->second[3] << " " << it->second[4] << " " << it->second[5] << endl // << it-