先看问题：在后面的文章中会给出答案:|)
Q: Is it possible to have Virtual Constructor? If yes, how? If not, Why not possible?
Q: What is constructor or ctor?
Q: What about Virtual Destructor?
Q: What is the difference between a copy constructor and an overloaded assignment operator?
Q: Can a constructor throws an exception? How to handle the error when the constructor fails?
Q: What is default constructor?
Q: What is copy constructor?
Q: When are copy constructors called?
Q: Can a copy constructor accept an object of the same class as parameter, instead of reference
of the object?
Q: What is conversion constructor?
Q:What is conversion operator?
Q: How can I handle a constructor that fails?
Q: How can I handle a destructor that fails?
Q: What is Virtual Destructor?
Q: Can a copy constructor accept an object of the same class as parameter, instead of reference
of the object?
Q: What's the order that local objects are destructed?
Q: What's the order that objects in an array are destructed?
Q: Can I overload the destructor for my class?
Q: Should I explicitly call a destructor on a local variable?
Q: OK, OK already; I won't explicitly call the destructor of a local; but how do I handle the above situation?
Q: What if I can't wrap the local in an artificial block?
Q: What is "placement new" and why would I use it?
Q: When I write a destructor, do I need to explicitly call the destructors for my member objects?
Q: When I write a derived class's destructor, do I need to explicitly call the destructor for my
base class?
Q: Is there any difference between List x; and List x();?
