#include <iostream>#include <cstdlib>#include <memory>using namespace std;class Kiwi {private:    int weight;public:    Kiwi(int w) : weight(w) {}    ~Kiwi() {        cout<<"~Kiwi"<<endl;    }    int getWeight() {return weight;}};void driven() {    shared_ptr<Kiwi> p(new Kiwi(100));    cout<<p->getWeight()<<endl;    shared_ptr<Kiwi> q = p;    cout<<p->getWeight()<<endl;    cout<<q->getWeight()<<endl;}int main() {    cout<<"test start"<<endl;    driven();    cout<<"test end"<<endl;    return 0;}