class A { public: int a; A() { } void print() { cout<<a; } }; class B:public A { public: int a; B() { a = 2; } }; int main() { B b; b.print(); return 0; }
输出随机值
class A { public: int a; A() { } void print() { cout<<a; } }; class B:public A { public: int a; B() { a = 2; } }; int main() { B b; b.print(); return 0; }
输出随机值