代码如诗

摘要： class A{public: A(int x):i(x) {} void foo() { cout<<"A"<<endl; }protected: int i;};class B : public A{public: B(int x, int y):A(x), i(y) {} void foo() { cout<<"B"<<endl; } void display() { cout<<A::i + i<<endl; }private: int i;};int main(){ A a 阅读全文