实验三

#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
class Info
{
public:
    Info() {}
    Info(string x, string y, string z, int num) : nickname{x}, contact{y}, city{z}, n{num} {}
    ~Info() {}
    void set_nickname(string m)
    {
        nickname = m;
    }
    void set_contact(string r)
    {
        contact = r;
    }
    void set_city(string p)
    {
        city = p;
    }
    void set_n(int e)
    {
        n = e;
    }
    void print()
    {
        cout << left << setw(8) << "昵称:" << nickname << endl;
        cout << left << setw(8) << "联系方式:" << contact << endl;
        cout << left << setw(8) << "所在城市:" << city << endl;
        cout << left << setw(8) << "预定人数:" << n << endl;
    }

private:
    string nickname, contact, city;
    int n;
};

源文件
#include <iostream>
#include <vector>
#include "info.h"

using namespace std;

void test()
{
    const int capacity=100;
    vector<Info> audience_info_list;
    int n, sum = 0;
    string name, number, city;
    cout << "录入信息\n" << endl;
    cout << "昵称\t" << "联系方式(邮箱/手机号)\t" << "所在城市\t" << "预定参加人数" << endl;
    while (cin >> name)
    {
        cin >>number ;
        cin >> city;
        cin >> n;
        sum = sum + n;
        if (capacity >= sum)
        {
            Info T = Info(name, number, city, n);
            audience_info_list.push_back(T);
        }
        else
        {
            string x;
            sum = sum - n;
            cout << "对不起，只剩" << capacity-sum << "个位置."<<endl;
            cout << "1.输入u，更新(update)预定信息" << endl;
            cout << "2.输入q，退出预定" << endl;
            cout << "你的选择："<< endl;
            cin >> x;
            if (x == "u")
            {
                cout << "录入信息\n" << endl;
                cout << "昵称\t" << "联系方式(邮箱/手机号)\t" << "所在城市\t" << "预定参加人数" << endl;
                continue;
            }
            else if (x == "q")
            {
                break;
            }
        }
        if (sum == capacity) break;
    }
    cout << "截至目前，一共有" << sum << "位听众预定参加。预定听众信息如下:" << endl;
    for (int j = 0; j < audience_info_list.size(); j++)
    {
        audience_info_list.at(j).print();
    }
}

int main()
{
    test();
}
头文件
#pragma once
#include <iostream>

using namespace std;

class Info
{
public:
    Info();
    Info(string nickname,string contact,string city,int n):nickname{ nickname },contact{ contact },city{ city },n{n}{}
    void print();
private:
    string nickname, contact, city;
    int n;
};

void Info::print()
{
    cout << "昵称:\t  \t" << nickname << endl;
    cout << "联系方式:\t" << contact << endl;
    cout << "所在城市:\t" << city << endl;
    cout << "预定人数:\t" << n << endl;
}

 

 

 

 实验三 task6

1 #pragma once
 2 #include <iostream>
 3 #include <string>
 4 
 5 using namespace std;
 6 
 7 class TextCoder {
 8 private:
 9     string text;
10     void encoder();
11     void decoder();
12 
13 public:
14     TextCoder(string text0) : text{ text0 } {}
15     string get_ciphertext() ;
16     string get_deciphertext() ;
17 };
18 
19 void TextCoder::encoder() {
20     for (int i=0;i<text.length();i++)
21     {
22         if (text.at(i) >= 'a' && text.at(i) <= 'u')
23             text.at(i) += 5;
24         else if (text.at(i) >= 'v' && text.at(i) <= 'z')
25             text.at(i) -= 21;
26         else if (text.at(i) >= 'A' && text.at(i) <= 'U')
27             text.at(i) += 5;
28         else if (text.at(i) >= 'V' && text.at(i) <= 'Z')
29             text.at(i) -= 21;
30         
31     }
32 }
33 
34 void TextCoder::decoder() {
35     for (int i=0;i<text.length();i++)
36     {
37         if (text.at(i) >= 'f' && text.at(i) <= 'z')
38             text.at(i) -= 5;
39         else if (text.at(i) >= 'a' && text.at(i) <= 'e')
40             text.at(i) += 21;
41         else if (text.at(i) >= 'F' && text.at(i) <= 'Z')
42             text.at(i) -= 5;
43         else if (text.at(i) >= 'A' && text.at(i) <= 'E')
44             text.at(i) += 21;
45 
46     }
47 }
48 
49 string TextCoder::get_ciphertext() {
50     encoder();
51     return text;
52 }
53 
54 string TextCoder::get_deciphertext() {
55     decoder();
56     return text;
57 }

TextCoder.hpp

 

1 #include "textcoder.hpp"
 2 #include <iostream>
 3 #include <string>
 4 
 5 void test() {
 6     using namespace std;
 7 
 8     string text, encoded_text, decoded_text;
 9 
10     cout << "输入英文文本: ";
11     while (getline(cin, text)) {
12         encoded_text = TextCoder(text).get_ciphertext();  // 这里使用的是临时无名对象
13         cout << "加密后英文文本:\t" << encoded_text << endl;
14 
15         decoded_text = TextCoder(encoded_text).get_deciphertext(); // 这里使用的是临时无名对象
16         cout << "解密后英文文本:\t" << decoded_text << endl;
17         cout << "\n输入英文文本: ";
18     }
19 }
20 
21 int main() {
22     test();
23 }

task6.cpp

运行测试截图