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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
The polymorphism of object-oriented language is the key technology, the use of the method and internal principle is one of the most difficult technologies. In this paper, C + + as an example, analyzed the theory of Polymorphism and pointed out the limitation when rewrite few virtual function in derived class, and put forward a kind of solving method with the string matches to replace the seek address.
Keywords:object-oriented;polymorphism;virtual function