填空题

请在如下程序中的空格处填写正确的语句;
#include<iostream>
using namespaee std;
c]ass Base
public:
void fun( )cout<<"Base fun"<<endl;

class Derived:public Base
public:
void fun( )
______//调用基类的函数fun( )
cout<<"Derived fun"<<endl;

【参考答案】

Base::fun( )