您是否需要告诉智能指针，当您完成它们时

对于智能指针，您是否仍然需要释放/重置它们以确保释放内存？还是可以让他们超出范围？

对于类成员智能指针，在释放内存、悬空指针方面，行为是否有任何差异？析构函数是否应始终释放这些变量？

class Foo
{
public:
    Foo()
    {
        myUPtr = std::unique_ptr<int>(new int);
        mySPtr = std::shared_ptr<int>(new int);
    }
    ~Foo()
    {
        // Should these smart pointers be released? Or will falling out of scope/deletion release the memory?
        myUPtr.release();
        mySPtr.reset();
    }
private:
    std::unique_ptr<int> myUPtr;
    std::shared_ptr<int> mySPtr;
};
int main()
{
    // When each of the below variables fall out of scope is there any difference in memory release? 
    Foo f;
    std::unique_ptr<Foo> uFoo(new Foo);
    std::shared_ptr<Foo> sFoo(new Foo);
    std::unique_ptr<int> uPtr(new int);
    std::shared_ptr<int> sPtr(new int);
    // Will all these smart pointers be released automatically? 
    // No need to call .release()/.reset() on any member and non-member smart pointers?
    return 0;
}