五
#include <iostream> #include <string> using namespace std; class Info { public: Info (string nina, string con, string ci, int num = 0): nickname(nina), contact(con), city(ci), n(num) {}; void print(); private: string nickname, contact, city; int n; }; void Info::print() { cout << "称呼: " << nickname << endl; cout << "联系方式: " << contact << endl; cout << "所在城市: " << city << endl; cout << "预定人数: " << n << endl; }
#include"info.hpp" #include<iostream> #include<iomanip> #include<vector> #include<string> int main() { using namespace std; const int capacity = 100; string na; string co; string ci; int nu; int n=0; vector<Info> audience_info_list; cout << "录入信息:" <<endl; cout << "称呼/昵称,联系方式(邮箱/手机号),所在城市,预定参加人数" << endl; while(cin >> na) { cin >> co; cin >> ci; cin >> nu; if(n + nu > capacity) { cout << "对不起,只剩" << capacity - n << "个位置" << endl; cout << "1.输入u,更新预定信息" << endl; cout << "2.输入q,退出预定" << endl; char s; cin >> s; if(s=='u') { continue; } else { break; } } n+=nu; audience_info_list.push_back(Info(na, co, ci, nu)); } cout << "截至目前,一共有" << n << "位听众预定参加。预定听众信息如下:" <<endl; for(auto it=audience_info_list.begin();it!=audience_info_list.end();++it) { it -> print(); } }
六
#include <string> using namespace std; class TextCoder { public: TextCoder(string s) : text{s} {} string encoder(); string decoder(); private: string text; }; string TextCoder::encoder() { for(auto &ch : text) { if(ch >= 'a' && ch <= 'z') { ch += 5; if(ch > 'z') ch -= 'z' - 'a'; } else if(ch >= 'A' && ch <= 'Z') { ch += 5; if(ch > 'Z') ch -= 'Z' - 'A'; } } return text; } string TextCoder::decoder() { for(auto &ch : text) { if(ch >= 'a' && ch <= 'z') { ch -= 5; if(ch < 'a') ch += 'z' - 'a'; } else if(ch >= 'A' && ch <= 'Z') { ch -= 5; if(ch > 'Z') ch += 'Z' - 'A'; } } return text; }
#include "TextCoder.hpp" #include <iostream> #include <string> int main() { using namespace std; string text, encoded_text, decode_text; cout << "输入英文文本:"; while (getline(cin, text)) { encoded_text = TextCoder(text).encoder();// 这里使用的是临时无名对象 cout << "加密后英文文本:" << encoded_text << endl; decode_text = TextCoder(encoded_text).decoder();// 这里使用的是临时无 名对象 cout << "解密后英文文本:" << decode_text << endl; cout << " 输入英文文本:"; } }