相关视频——黑马程序员C++(264-281)
基础部分(1-83)——如果你准备学习C++,并且有C语言的基础,我希望你能简单的过一遍知识点。
核心部分(84-146)——C++核心编程部分
案例1(147-166)——职工管理系统——C++实现职工管理系统
进阶部分(167-263)——C++提高编程部分
演讲比赛流程管理系统
演讲比赛程序需求
![image-20210810111738845](/images/C++%E5%AE%9E%E7%8E%B0%E6%BC%94%E8%AE%B2%E6%AF%94%E8%B5%9B%E6%B5%81%E7%A8%8B%E7%AE%A1%E7%90%86%E7%B3%BB%E7%BB%9F.assets/image-20210810111738845.png)
程序功能
![image-20210810112344475](/images/C++%E5%AE%9E%E7%8E%B0%E6%BC%94%E8%AE%B2%E6%AF%94%E8%B5%9B%E6%B5%81%E7%A8%8B%E7%AE%A1%E7%90%86%E7%B3%BB%E7%BB%9F.assets/image-20210810112344475.png)
代码实现
Speaker.h
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| #pragma once #include<iostream> using namespace std; class Speaker { public: string m_Name; double m_Score[2]; };
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SpeechManager.h
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| #pragma once #include<iostream> #include<vector> #include<map> #include"Speaker.h" #include<algorithm> #include<deque> #include<functional> #include<numeric> #include<string> #include<fstream> using namespace std;
class SpeechManager { public: SpeechManager();
void Show_Menu();
void ExitSystem();
void InitSpeech();
void CreatSpeaker();
void StartSpeech();
void SpeechDraw();
void SpeechContest();
void ShowScore();
void SaveRecord();
void LoadRecord();
void ShowRecord();
bool FileIsEmpyt;
map<int, vector<string>>m_Record; ~SpeechManager(); void ClearRecord();
vector<int>v1; vector<int>v2; vector<int>vVictory; map<int, Speaker>m_Speaker;
int m_Index;
};
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SpeechManager.cpp
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| #include"SpeechManager.h"
SpeechManager::SpeechManager() { this->InitSpeech(); this->CreatSpeaker(); this->LoadRecord();
}
void SpeechManager::Show_Menu() { cout << "*********************" << endl; cout << "****欢迎参加演讲比赛" << endl; cout << "*****1.开始比赛*****" << endl; cout << "*****2.查看记录*****" << endl; cout << "*****3.清空记录*****" << endl; cout << "*****0.退出程序*****" << endl; cout << "*********************" << endl; }
void SpeechManager::ExitSystem() { cout << "欢迎下次使用" << endl; 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::CreatSpeaker() { string NameSeed = "ABCDEFGHIJKL"; for (unsigned 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 + 10001);
this->m_Speaker.insert(make_pair(i + 10001, sp)); } }
void SpeechManager::SpeechDraw() { cout << "第" << this->m_Index << "轮比赛选手正在抽签" << endl; cout << "——————" << 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; } }
void SpeechManager::StartSpeech() {
this->SpeechDraw(); this->SpeechContest(); this->ShowScore(); this->m_Index++; this->SpeechDraw(); this->SpeechContest(); this->ShowScore(); this->SaveRecord();
this->InitSpeech(); this->CreatSpeaker(); this->LoadRecord(); cout << "本届比赛已经结束!" << endl;
system("pause"); system("cls");
}
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<double>()); 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[this->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 << "第" << this->m_Index << "轮比赛完毕" << endl; system("pause"); }
void SpeechManager::ShowScore() { cout << "第" << this->m_Index << "轮晋级选手如下" << 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[this->m_Index - 1] << 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 << "记录已经完成" << endl;
this->FileIsEmpyt = false; }
void SpeechManager::LoadRecord() { ifstream ifs("speech.csv", ios::in); if (!ifs.is_open()) { this->FileIsEmpyt = true; ifs.close(); return; }
char ch; ifs >> ch; if (ifs.eof()) { cout << "文件为空" << endl; this->FileIsEmpyt = true; ifs.close(); return; }
this->FileIsEmpyt = false; ifs.putback(ch); string data; int index = 0; while (ifs >> data) { vector<string>v; int pos = -1; int start = 0; while (1) { 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->FileIsEmpyt) { cout << "文件为或者文件不存在" << endl; } 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"); }
void SpeechManager::ClearRecord() { cout << "是否确定清空文件?" << endl; cout << "1.是、2.否" << endl;
int select = 0; cin >> select; if (select == 1) { ofstream ofs("speech.csv",ios::trunc); ofs.close();
this->InitSpeech(); this->CreatSpeaker(); this->LoadRecord();
cout << "清空成功!" << endl; } system("pause"); system("cls"); }
SpeechManager::~SpeechManager() {
}
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演讲比赛流程管理系统.cpp
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| #include<iostream> #include<string> #include<ctime> #include"SpeechManager.h" using namespace std; int main(void) {
srand((unsigned int)time(NULL));
SpeechManager sm;
int choice = 0; while (1) { sm.Show_Menu(); cin >> choice; switch (choice) { case 1: sm.StartSpeech(); break; case 2: sm.ShowRecord(); break; case 3: sm.ClearRecord(); break; case 0: sm.ExitSystem(); break;
default: system("cls"); break; } }
system("pause"); return 0; }
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