实验三

TASK 5:

info.hpp

#pragma once

#include<iostream>
#include<string>
#include<iomanip>
#include<vector>

using namespace std;

class info{
    
    public:
        info(string Name,string Contact,string City,int num):name{Name},contact{Contact},city{City},n{num}{}
        void print(){
            cout<<"昵称：        "<<name<<endl;
            cout<<"联系方式：    "<<contact<<endl;
            cout<<"所在城市：    "<<city<<endl;
            cout<<"预定人数：    "<<n<<endl;
        }        
    private:
        string name,contact,city;
        int n;
};

task5.cpp

#include"info.hpp" 

#include<iostream>
#include<string>
#include<iomanip>
#include<vector>

using namespace std;

int main(){
    
    const int capacity=100 ;
    vector<info>audience_info_list;
    
    cout<<"录入信息："<<endl;
    cout<<setw(20)<<left<<"昵称";
    cout<<setw(20)<<left<<"联系方式（邮箱/手机号）";
    cout<<setw(20)<<left<<"所在城市";
    cout<<setw(20)<<left<<"预定参加人数"<<endl;
    string na,con,ci,choice="u";
    int cnt,add;
    while(choice=="u"&&cin>>na){
        cin>>con>>ci>>add;
        if(cnt+add>capacity){
            cout<<"对不起，只剩"<<capacity-cnt<<"个位置"<<endl;
            cout<<"1.输入u，更新（update）预定信息"<<endl<<"输入q，退出预定。"<<endl<<"你的选择：";
            cin>>choice;
            if(choice=="q"){
                break;
            }else{
                cin>>na>>con>>ci>>add;
                cnt+=add;
                info in=info(na,con,ci,add);
                audience_info_list.push_back(in);
                break;
            }        
        }
        cnt+=add;
        info in=info(na,con,ci,add);
        audience_info_list.push_back(in);
        if(cnt==capacity){
            break;
        }
    }
    cout << "截至目前，一共有" <<cnt<< "位听众预定参加。预定听众信息如下：" <<endl;
    for (int i=0;i<audience_info_list.size();i++){
        audience_info_list.at(i).print();
    }
    return 0;
}

测试样例：

TASK 6:

textcoder.hpp

#pragma once

#include<iostream>
#include<string>

using namespace std;

class TextCoder{
    public:
        TextCoder(string t):text{t}{}
        TextCoder(TextCoder &p):text{p.text}{}
        
        string get_ciphertext(){
            encoder();
            return text;
        }
        string get_deciphertext(){
            decoder();
            return text;
        };
    
    private:
        string text;
        void encoder(){
            for(int i=0;i<text.size();i++){
                if(isupper(text.at(i))){
                    text.at(i)=(text.at(i)-60)%26+65;
                }else{
                    if(islower(text.at(i))){
                        text.at(i)=(text.at(i)-92)%26+97;
                    }
                }
            }
        };
        void decoder(){
            for(int i=0;i<text.size();i++){
                if(isupper(text.at(i))){
                    text.at(i)=(text.at(i)-44)%26+65;
                }else{
                    if(islower(text.at(i))){
                        text.at(i)=(text.at(i)-76)%26+97;
                    }
                }
            }
        };
}; 

task6.cpp

#include "textcoder.hpp"
#include <iostream>
#include <string>

void test() {
    using namespace std;

    string text, encoded_text, decoded_text;

    cout << "输入英文文本: ";
    while (getline(cin, text)) {
        encoded_text = TextCoder(text).get_ciphertext();  // 这里使用的是临时无名对象
        cout << "加密后英文文本:\t" << encoded_text << endl;

        decoded_text = TextCoder(encoded_text).get_deciphertext(); // 这里使用的是临时无名对象
        cout << "解密后英文文本:\t" << decoded_text << endl;
        cout << "\n输入英文文本: ";
    }
}

int main() {  
    test(); 
}

测试截图：