C++程序，求大神帮忙看看什么问题

Question

以下是我写的c++程序代码，求哪位大神看看为什么进入不了F()函数里面！！！谢谢了

 #include<iostream>
using namespace std;


class Test
{
public:
    int a;
    int b;
public:
    Test(int a, int b)
    {
        this->a = a;
        this->b = b;
    }

    ~Test()
    {

    }

    Test(const Test &cmp)
    {
        this->a = cmp.a + 1;
        this->b = cmp.b + 1;
    }

public:
    int Geta(){ return a; }
};

void F(Test obj)
{
    cout<<obj.Geta();
}

void playobj()
{
    Test d(1, 2);
    Test F(d);
}

int main()
{
    playobj();
    system("pause");
    return 0;
}

Answer 1

Test F(d);
->
F(d);