实验2

info.hpp

#pragma once
#ifndef INFO_HPP
#define INFO_HPP

#include <iostream>
#include<string>
using namespace std;

class Info
{
private:
    string nickname;
    string contact;
    string city;
    int n;
public:
    Info(string _nickname = "***", string _contact = "***", string _city = "***", int n1 = 0) :nickname{ _nickname }, contact{ _contact }, city{ _city }, n{ n1 }  { }
    void print();
};
void Info::print()

{
    cout << "name:" << nickname << endl;
    cout << "number:" << contact << endl;
    cout << "city:" << city << endl;
    cout << "预定参加人数:" << n << endl;
}
#endif

task.cpp：

#include<iostream>
#include<string>
#include<vector>
#include "info.hpp"

int main()
{

    vector<Info> audience;
    const auto capacity = 100;
    string a, b, c;
    auto m = 0, s = 0, j = 0;

    int d;

    cout << "录入信息：" << endl;
    cout << " " << endl;
    cout << "称呼..." << "联系方式..." << "所在城市..." << "预定参加人数..." << endl;

    while ((cin >> a), (cin >> b), (cin >> c), (cin >> d))
    {
        audience.push_back(Info(a, b, c, d));
        m += d;
        j++;
        s = capacity - m;
        if (s > 0)
        {
            cout << "你好，还剩" << s << "个位置" << endl;
            cout << "1.输入u更新信息" << endl << "2.输入q退出预定" << endl;
            cout << "你的选择：";
            char f;
            cin >> f;
            cout << " " << endl;
            if (f == 'u')
            {

                cout << "称呼...   " << "联系方式....   " << "所在城市...   " << "预定参加人数...   " << endl;

            }
            else if (f == 'q')
                break;
        }
        

    }

    cout << "截止目前，一共有" << m << "位观众预定，详情如下：" << endl;
    for (auto z = 0; z < j; z++) {
        audience[z].print();
    }
    return 0;
}

实验运行图：

 

 

 

testcode.hpp:

#ifndef TEXTCODER_HPP
#define TEXTCODER_HPP
#include <iostream>
#include <string>

using namespace std;

class  TextCoder
{
private:
    string text;
public:
    string encoder();
    string decoder();
    TextCoder(string _text) :text{ _text } {};
};

string TextCoder::encoder() 
{
    string n;

    for (auto dm : text)
    {
        if (dm >= 'a' && dm <= 'z' || dm >= 'A' && dm <= 'Z')
        {
            dm += 5;

            if (dm < '_' && dm > 'Z' || dm > 'z')
            {
                dm -= 26;
            }
            
        }
        n += dm;
    }


    return n;
}

string TextCoder::decoder()
{
    string m;
    for (auto dm : text)
    {
        if (dm >= 'a' && dm <= 'z' || dm >= 'A' && dm <= 'Z')
        {
            dm -= 5;

            if (dm < 'A' || dm>92 && dm < 'a')
            {
                dm += 26;
            }
            
        }
        m += dm;
    }

    return m;
}



#endif

test.cpp:

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

 int main()
{
    using namespace std;
    string text, encoded_text, decoded_text;
    cout << "输入英文文本: ";
    while (getline(cin, text))
    {
        encoded_text = TextCoder(text).encoder();
        cout << "加密后英文文本:\t" << encoded_text << endl;
        decoded_text = TextCoder(encoded_text).decoder();
        cout << "解密后英文文本:\t" << decoded_text << endl;
        cout << "\n输入英文文本: ";
    }
}

运行图：

 

总结：编译的过程不但要有清楚的逻辑实现方法，还要能用C++语言完整的表达出来，还是要多多的练习才行。