用c++补全下列代码int main() { array X(11,22,33,44,55,66); array Y,Z; Y.get_array(); cout<<"Display object X"<<endl; X.display(); cout<<"Display object Y"<<endl; Y.display(); Z=X+Y; cout<<"Display object Z=X+Y"<<endl; Z.display(); Z=X-Y; cout<<"Display object Z=X-Y"<<endl; Z.display(); return 0; }

以下是补全代码：

#include <iostream>

using namespace std;

class array {
private:
    int *arr;
    int size;
public:
    array() {
        arr = nullptr;
        size = 0;
    }

    array(int s) {
        arr = new int[s];
        size = s;
    }

    array(const array &obj) {
        size = obj.size;
        arr = new int[size];
        for (int i = 0; i < size; i++) {
            arr[i] = obj.arr[i];
        }
    }

    array(int a, int b, int c, int d, int e, int f) {
        arr = new int[6];
        arr[0] = a;
        arr[1] = b;
        arr[2] = c;
        arr[3] = d;
        arr[4] = e;
        arr[5] = f;
        size = 6;
    }

    ~array() {
        delete[] arr;
    }

    void get_array() {
        cout << "Enter the size of array: ";
        cin >> size;
        arr = new int[size];
        cout << "Enter the elements of array:" << endl;
        for (int i = 0; i < size; i++) {
            cin >> arr[i];
        }
    }

    void display() {
        if (size == 0) {
            cout << "Array is empty" << endl;
            return;
        }
        for (int i = 0; i < size; i++) {
            cout << arr[i] << " ";
        }
        cout << endl;
    }

    array operator+(const array &obj) {
        array res(size);
        for (int i = 0; i < size; i++) {
            res.arr[i] = arr[i] + obj.arr[i];
        }
        return res;
    }

    array operator-(const array &obj) {
        array res(size);
        for (int i = 0; i < size; i++) {
            res.arr[i] = arr[i] - obj.arr[i];
        }
        return res;
    }
};

int main() {
    array X(11, 22, 33, 44, 55, 66);
    array Y, Z;
    Y.get_array();
    cout << "Display object X" << endl;
    X.display();
    cout << "Display object Y" << endl;
    Y.display();
    Z = X + Y;
    cout << "Display object Z=X+Y" << endl;
    Z.display();
    Z = X - Y;
    cout << "Display object Z=X-Y" << endl;
    Z.display();
    return 0;
}

这段代码定义了一个名为`array`的类，该类代表一个整数数组。在主函数中，首先创建了一个名为`X`的`array`对象，其构造函数接收6个整数参数。接下来创建了两个空的`array`对象`Y`和`Z`，并通过`get_array()`函数从控制台输入`Y`的元素值。然后，使用`+`和`-`运算符对`X`和`Y`进行运算，并将结果存储在`Z`中，最后分别输出`X`、`Y`和`Z`的元素值。