Required to write a program to implement the following requirements
1 define a class, for the private data members, member functions for common
2 requires a constructor, and the constructor that overloaded
3 a destructor, destructors are output, when the program execution see when performing the destructor
4 copy constructor, requires three automatically calls the copy constructor is executed to
5 have a ordinary member function
6 in front of the main function of the definition to the function is called
7 k k write program execution results