实验六

#pragma once
#include<iostream>
using std::cout;
using std::endl;
template<typename T>
class Vector
{
public:
    Vector(T n) :size(n) { p = new T[n]; }
    Vector(T n, T value) :size(n)
    {
        p = new T[n];
        for (int i = 0; i < n; i++)
            p[i] = value;
    }
    Vector(const Vector& V):size{V.size}
    {
        p = new T[V.size];
        for (int i = 0; i < V.size; i++)
            p[i] = V.p[i];
    }
    ~Vector() { delete[]p; }
    T get_size()
    {
        return size;
    }
    T &at(int i)
    {
        return p[i];
    }
    T& operator[](int i)
    {
        return p[i];
    }
    friend void output(Vector& V)
    {
        for (int i = 0; i < V.size; i++)
        {
            cout << V.p[i]<<" ";
        }
        cout << endl;
    }
private:
    T size;
    T* p;
};

修改数据后

#include<iostream>
#include <fstream>
#include<string>
#include<iomanip>
using namespace std;
void output(std::ostream& out)
{
    string a[27][27] = { " " };
    int n = 0;
    for (int i = 1; i < 27; i++)
    {
        a[i][0] = to_string(i);
        a[0][i] = 97 + n;
        n++;
    }
    for (int i = 1; i < 27; i++)
    {
        n = i;
        for (int j = 1; j < 27; j++)
        {
            if (65 + n > 90)
            {
                a[i][j] = 65 + n - 26;
            }
            else
            {
                a[i][j] = 65 + n;
            }
            n++;
        }
    }
    for (int i = 0; i < 27; i++) {
        for (int j = 0; j < 27; j++) {
            out <<right<< setw(2) << a[i][j] << " ";
        }
        out << endl;
    }
}

int main()
{
    ofstream out;
    out.open("cipher_key.txt", ios::out);
        if (!out.is_open())
        {
            cout << "fail to open file\n";
            return 1;
        }
        output(out);
        output(cout);
        out.close();
}