c++ - 坚持在 C++ 中调用一些方法来创建菜单

Question

我有一个ComplexesSet代表一组复数的类。我必须使用这个类来编写一个程序，它从键盘读取复数并创建一个这样的菜单：按 1 在集合中添加一个数字，按 2 从集合中删除一个数字，然后按 0 退出程序。

这是我的程序：头文件

#pragma once
#include <iostream>
using namespace std;

#define DIMMAX 10;

class Complex {
    int re, im;
public:
    Complex() {
        re = im = 0;
    }
    Complex(int re, int im) {
        this->re = re;
        this->im = im;
    }
    void display() {
        cout << " (" << re << ", " << im << " ) ";
    }
    int equal(Complex c2); // check the equality between 2 complex numbers.
    void read(); // reads a complex number
};

class ComplexesSet {
    Complex* v; // the complex numbera array
    int dim; // the maximum dimension of the array
    int n; // the current number of complex numbers in the set
public:
    ComplexesSet();
    ComplexesSet(int d);
    ~ComplexesSet();
    void addNumber(Complex); // add a number in set
    void deleteNumber(Complex); // delete a number from set
    void displaySet(); // display the set
};

方法文件

#include "multime.h"
#include <iostream>
using namespace std;

int Complex::equal(Complex c2) {
    if (this->re == c2.re && this->im == c2.im) {
        return 1;
    }
    else {
        return 0;
    }
}

void Complex::read() {
    cout << "Enter the real part: ";
    cin >> this->re;
    cout << "Enter the imaginary part: ";
    cin >> this->im;
    cout << endl;
}

ComplexesSet::ComplexesSet() {
    cout << "Set of complexes numbers: ";
    dim = DIMMAX;
    v = new Complex[dim];
    n = 0;
}

ComplexesSet::ComplexesSet(int d) {
    cout << "ComplexesSet(" << d << ")";
    dim = d;
    v = new Complex[dim];
    n = 0;
}

ComplexesSet::~ComplexesSet() {
    cout << "~ComplexesSet" << endl;
    if (v) {
        delete[] v;
    }
    v = nullptr;
    dim = -1;
    n = -1;
}

void ComplexesSet::addNumber(Complex num) {
    int ok = 0;
    if (n < dim) {
        for (int i = 0; i < n; i++) {
            if (v[i].equal(num)) {
                ok = 1;
                i = n + 1;
            }
        }
        if (ok) {
            cout << "This element is already in the set.";
        }
        else {
            v[n] = num;
            n++;
        }
    }
    else {
        cout << "The set is full.";
    }
}

void ComplexesSet::deleteNumber(Complex num) {
    int i;
    if (n != 0) {
        for (i = 0; i < n; i++) {
            if (v[i].equal(num)) {
                break;
            }
            else {
                cout << "This element does not exists.";
            }
        }
        if (i < n) {
            n = n - 1;
            for (int j = i; j < n; j++) {
                v[j] = v[j + 1];
            }
        }
    }
    else {
        cout << "The set is empty.";
    }
}

void ComplexesSet::displaySet() {
    cout << "\n The set: {";
    if (n) {
        for (int i = 0; i < n; i++) {
            v[i].display();
        }
    }
    cout << "}.\n\n";
}

主要文件：

#include "multime.h"
#include <iostream>

using namespace std;

int main() {
    ComplexesSet m;
    Complex num;
    int option;
    int x;
    do {
        cout << endl << "1 - ADD A NUMBER\n 2 - DELETE A NUMBER\n 0 - EXIT THE PROGRAM";
        cin >> option;
        switch (option) {
        case 1:
            cout << endl << "Enter the number you want to add: ";
            num.read();
            //? How to call addNumber method from ComplexesSet class?
            // m.displaySet ?;
            break;
        case 2:
            cout << endl << "Enter the number you want to delete: ";
            num.read();
            //? How to call deleteNumber method from ComplexesSet class?
            // m.displaySet ?;
            break;
        }
    } while (option >= 1 && option <= 2);

    system("pause");
    return 0;
}

我卡在主文件中。如何调用 addNumber 和 deleteNumber 方法以便从集合中添加和删除复数？另外，按“1”或“2”后，在我读取数字后，我需要显示集合。

标签： c++classoopset