题解 | #数组类的构造函数#

#include <iostream>
using namespace std;


class Nums{
    public:
    int n;
    int *a;

    Nums(int n, int *a){
        this->n = n;
        this->a = new int[this->n];
        for(int i=0; i<this->n; i++){
            this->a[i] = a[i];
        }
    }

    ~Nums(){
        delete[] this->a;
    }

};

int main() {
    int n; cin >> n;
    int *p = new int[n];
    for(int i=0; i<n; i++){
        int item;
        cin >> item;
        p[i] = item;
    }
    Nums nums(n, p);
    for(int i=0; i<nums.n; i++){
        cout << nums.a[i] << " ";
    }
    delete[] p;
}