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若有以下程序: #include<iostream> using namespace std; class Base { public: void who(){cout<<"Base"<<end1;} } class Derived1:public Base { public: void who(){cout<<"Derived"<<end1;} }; int main() { Base *p; Derived1 obj1; p=&obj1; p—>who(); return 0; } 则该程序运行后的输出结果是 【9】

【参考答案】

Derived
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