实验4 现代C++标准库与类模板

实验任务5:

TextCoder.hpp文件源码：

#ifndef TEXTCODER_HPP
#define TEXTCODER_HPP

#include <string>

class TextCoder {
private:
    std::string text;

    void encoder();
    void decoder();

public:
    TextCoder(std::string input_text);
    std::string get_ciphertext();
    std::string get_deciphertext();
};

#endif

// textcoder.cpp
#include "textcoder.hpp"

TextCoder::TextCoder(std::string input_text) {
    text = input_text;
}

void TextCoder::encoder() {
    for (char& c : text) {
        if (isalpha(c)) {
            if (islower(c)) {
                c = 'a' + (c - 'a' + 7) % 26;
            } else {
                c = 'A' + (c - 'A' + 7) % 26;
            }
        }
    }
}

void TextCoder::decoder() {
    for (char& c : text) {
        if (isalpha(c)) {
            if (islower(c)) {
                c = 'a' + (c - 'a' + 19) % 26;
            } else {
                c = 'A' + (c - 'A' + 19) % 26;
            }
        }
    }
}

std::string TextCoder::get_ciphertext() {
    encoder();
    return text;
}

std::string TextCoder::get_deciphertext() {
    decoder();
    return text;
}

// main.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();
        cout << "加密后英文文本:\t" << encoded_text << endl;
        decoded_text = TextCoder(encoded_text).get_deciphertext();
        cout << "解密后英文文本:\t" << decoded_text << endl;
        cout << "\n输入英文文本: ";
    }
}

int main() {
    test();
    return 0;
}

运行测试结果截图 :

 

实验任务6

#ifndef INFO_HPP
#define INFO_HPP

#include <string>
#include <iostream>

class Info {
private:
    std::string nickname;
    std::string contact;
    std::string city;
    int n;

public:
    Info(std::string _nickname, std::string _contact, std::string _city, int _n) : nickname(_nickname), contact(_contact), city(_city), n(_n) {}
    
    void print() {
        std::cout << "昵称: " << nickname << ", 联系方式: " << contact << ", 城市: " << city << ", 预定参加人数: " << n << std::endl;
    }
};

#endif

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

int main() {
    const int capacity = 100;
    std::vector<Info> audience_info_list;
    int total_attendees = 0;

    std::cout << "开始录入预约登记信息：" << std::endl;
    while (total_attendees < capacity) {
        std::string nickname, contact, city;
        int n;

        std::cout << "请输入昵称: ";
        if (!std::getline(std::cin, nickname)) {
            break;
        }

        std::cout << "请输入联系方式: ";
        std::getline(std::cin, contact);

        std::cout << "请输入所在城市: ";
        std::getline(std::cin, city);

        std::cout << "请输入预定参加人数: ";
        std::cin >> n;
        std::cin.ignore(); // Ignore the newline character

        if (total_attendees + n > capacity) {
            std::cout << "预定参加人数超过livehouse场地剩余容量，输入 'q' 退出预定，或输入 'u' 更新预定信息: ";
            std::string choice;
            std::cin >> choice;
            if (choice == "q") {
                break;
            } else if (choice == "u") {
                continue;
            }
        }

        total_attendees += n;
        Info new_info(nickname, contact, city, n);
        audience_info_list.push_back(new_info);
    }

    std::cout << "\n预约参加livehouse的听众信息：" << std::endl;
    for (const Info& info : audience_info_list) {
        info.print();
    }

    return 0;
}

运行测试结果截图 ：