实验二

#ifndef info_HPP 
#define info_HPP
#include<iostream>
#include<string>
using namespace std;
class info{
private:string nickname,contact,city;
        int n;
public:info(){}
       info(string ni,string co,string ci,int n2):nickname(ni),contact(co),city(ci),n(n2) {}
       ~info(){}
       string get_nick() { return nickname;}
       string get_con() { return contact;}
       string get_ci() { return city;}
       int get_n() { return n;}
       void print(){
          cout<<"称呼:   "<<nickname<<endl
              <<"联系方式: "<<contact<<endl
              <<"所在城市: "<<city<<endl
              <<"预订人数: "<<n<<endl;
       }


};


#endif


#include<iostream>
#include<string>
#include<vector>
#include"info.hpp"
using namespace std;
const int capacity = 100;
int main()
{
    vector<info> audience_info_list;
    string nick, con, ci; int m, mid = 0, sum = 0, i;
    cout << "录入信息: " << endl << endl
        << "称呼/昵称，   联系方式（邮箱/手机号），   所在城市，   预定参加人数" << endl;
    while (cin >> nick >> con >> ci >> m)
    {
        if (sum + m > capacity) { 
              cout << "对不起，只剩" << capacity - sum << "个位置"<<endl
                 << "1.输入u,更新（update）预定信息" << endl
                 << "2.输入q,退出预定" << endl << "你的选择: "<<endl;
            char choose;
            cin >> choose;
            if(choose=='q')   break;
               else  continue;
           }
         
        else {
           info info1(nick, con, ci, m);
           audience_info_list.push_back(info1);
        
           mid++; sum += m;
          }
    }
    
        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 (i = 0; i < mid; i++)
            audience_info_list[i].print();
    
        
    }

}

 

 

#ifndef textcoder_HPP
#define textcoder_HPP
#include<iostream>
#include<string>
using namespace std;
class TextCoder {
private:string text;
public:TextCoder() {}
TextCoder(string text1) :text(text1) {}
~TextCoder() {}
string encoder() {
int n = text.size(), i;
for (i = 0; i < n; i++)
{
if (('v' <= text[i] && text[i] <= 'z') || ('V' <= text[i] && text[i] <= 'Z')) text[i] = text[i] - 21;
else if (('a'<=text[i]&&text[i]<='u')||('A'<=text[i]&&text[i]<='Z')) text[i] = text[i] + 5;
}

return text;
}
string decoder() {
int n = text.size(), i;
for (i = 0; i < n; i++)
{
if (('a' <= text[i] && text[i] <= 'e') || ('A' <= text[i] && text[i] <= 'E')) text[i] = text[i] + 21;
else if (('f'<=text[i]&&text[i]<='z')||('F'<=text[i]&&text[i]<='Z'))text[i] = text[i] - 5;
}
return text;
}

}；

#endif

#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(); // 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).decoder(); // 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: ";
}

}