using namespace std;
class A
{
public:
A()
{
cout<<"A";
}
~A()
{
cout<<"A";
}
};
class B
{
A *p;
public:
B()
{
cout<<"B";
p=new A();
}
~B()
{
cout<<"B";
delete p;
}
};
int main()
{
B obj;
return 0;
}
簡單的動態分配內存
#include
using namespace std;
class A
{
public:
A()
{
cout<<"A";
}
~A()
{
cout<<"A";
}
};
class B
{
A *p;
public:
B()
{
cout<<"B";
p=new A();
}
~B()
{
cout<<"B";
delete p;
}
};
int main()
{
B obj;
return 0;
}
using namespace std;
class A
{
public:
A()
{
cout<<"A";
}
~A()
{
cout<<"A";
}
};
class B
{
A *p;
public:
B()
{
cout<<"B";
p=new A();
}
~B()
{
cout<<"B";
delete p;
}
};
int main()
{
B obj;
return 0;
}
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