1 #include <iostream> 2 using namespace std; 3  4 class thebase    { 5 public: 6     virtual void basePrint()    { 7         cout << "the base class basePrint() function." << endl; 8     } 9 10     void basePrint2()    {11         cout << "the base class basePrint2() function." << endl;12     }13 14 };15 16 class thesub : public thebase{17 public:18     void basePrint()    {19         cout << "i will call the parent function." << endl;20         thebase::basePrint();  // 显式调用基类成员.                           21     }22 23 };24 25 int main(int argc, char* argv[])26 {27 28     thesub  mysub;29     mysub.basePrint();30 31     return 0;32 }