实验三

• 实验任务五

info.hpp:

#pragma once
#include<iostream>
#include<iomanip>
using namespace std;
class info {
    string nickname;
    string contact;
    string city;
    int n;//预定参加人数
public:
    info(){}
    info(string name0,string city0,string contact0,int n0):nickname(name0),contact(contact0),city(city0),n(n0){}
    ~info(){}
    void set_name(string x) { nickname = x; }
    void set_city(string x) { city = x; }
    void set_contact(string x) { contact = x; }
    void set_num(int x) { n = x; }
    void print();
};
void info::print() {
    cout << setiosflags(ios::left);
    cout << setw(20) << "昵称："  << nickname << endl;;
    cout << setw(20) << "联系方式:" << contact<<endl;
    cout << setw(20) << "所在城市:" << city << endl;
    cout << setw(20) << "预定人数:"  << n<<endl;
}

liveshow.cpp:

#include"info.hpp"
#include<iostream>
#include<string>
#include<vector>
#include<iomanip>
using namespace std;
int main() {
    const int capacity = 100;
    vector<info> audience_info_list(100);
    string t1, t2, t3, choose;
    int t4,count=0,i=0,flag=1;
    cout << "录入信息"<<endl<<endl;
    cout << setiosflags(ios::left);
    cout <<setw(20)<< "昵称" << setw(40) << "联系方式（邮箱/手机号）" << setw(20) << "所在城市"
         << "预定参加人数" << endl;
    while (cin>>t1>>t2>>t3>>t4)
    {
        if (t4 <= capacity - count) {
            audience_info_list[i].set_name(t1);
            audience_info_list[i].set_contact(t2);
            audience_info_list[i].set_city(t3);
            audience_info_list[i].set_num(t4);
            i++;
            count += t4;
        }//if
        else {
            cout << "对不起，只剩" << capacity - count << "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:  ";
            while (cin >> choose) {
                if (choose == "q") {
                    flag = 0;
                    break;
                }
                else if (choose == "u") {
                    cin >> t1 >> t2 >> t3 >> t4;
                    if (t4 > capacity - count) {
                        cout << "对不起，只剩" << capacity - count << "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";
                        continue;
                    }
                    audience_info_list[i].set_name(t1);
                    audience_info_list[i].set_contact(t2);
                    audience_info_list[i].set_city(t3);
                    audience_info_list[i].set_num(t4);
                    i++;
                    count += t4;
                    break;
                }
            }
        }//else
        if (flag == 0||count==capacity)
            break;
    }//while
    cout << "截至目前，一共有" << count << "位听众预定参加，预定听众信息如下：" << endl;
    for (int j = 0; j < i; j++)
    {
        audience_info_list[j].print();
        cout << endl;
    }
}

运行截图：

• 实验任务六

Textcoder.hpp:

#pragma once
#include<iostream>
#include<string>
using namespace std;
class TextCoder {
    string text;
    void encoder();
    void decoder();
public:
    TextCoder(){}
    TextCoder(string text1):text{text1}{}
    ~TextCoder(){}
    string get_ciphertext() { encoder(); return text; }
    string get_deciphertext() { decoder(); return text; }
};
void TextCoder::encoder() {
    for (auto& obj : text) {
        if ((obj >= 'a' && obj <= 'u') || (obj >= 'A' && obj <= 'U'))
            obj += 5;
        else if ((obj > 'u' && obj <= 'z') || (obj > 'U' && obj <= 'Z'))
            obj = obj - 21;
    }
}
void TextCoder::decoder() {
    for (auto& obj : text) {
        if ((obj >= 'f' && obj <= 'z') || (obj >= 'F' && obj <= 'Z'))
            obj = obj - 5;
        else if ((obj > 'a' && obj <= 'f') || (obj > 'A' && obj <= 'f'))
            obj += 21;
    }
}

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();
        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();
}

运行截图：