Introduction - If you have any usage issues, please Google them yourself
Sun Xin Lesson Video Source C++ syntax and application of the classic, class preparation and application, structure, and destructors, function overloading, class inheritance, function coverage, base and derived class constructor, the destructor has calling sequence, how in the derived class constructor in the base class constructor to pass parameters, this member variable, type conversion of insider, the virtual function polymorphism, references and pointers and the difference between the variables in common.