อาไรไม่รู้ แก้ไม่ถูก #include #include class Circle{ protected: double r; public: Circle(double number) { r = number; } double getarea(){return 3.14*r*r;} }; class Circle2 : public Circle { public: Circle2(double number): Circle(number) {r = number;} double getlong(){return 3.14*2*r;} }; int main () { Circle c2 (5.6); cout
Posted on: Thu, 22 Aug 2013 07:32:55 +0000
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