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将下面程序补充完整。 include using namespace std; class Base{ public: 【 】fun(){r
将下面程序补充完整。
include ＜iostream＞
using namespace std；
class Base{
public：
【 】 fun(){return 0；} //声明虚函数
}；
class Derived：public Base{
public：
x，y；
void SetVal(int a，int b){}
int fun(){return x+y；}
}；
void 【 】 SetVal(int a，int b){x=a；y=b；} //类Derived成员函数
void main(){
Derived d；
cout＜＜d．fun()＜＜endl；
}
参考答案
更多 “ 将下面程序补充完整。 include using namespace std; class Base{ public: 【 】fun(){r 将下面程序补充完整。include ＜iostream＞using namespace std；class Base{public：【 】 fun(){return 0；} //声明虚函数}；class Derived：public Base{public：x，y；void SetVal(int a，int b){}int fun(){return x+y；}}；void 【 】 SetVal(int a，int b){x=a；y=b；} //类Derived成员函数void main(){Derived d；cout＜＜d．fun()＜＜endl；} ” 相关考题
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