有如下程序:#include<iostream>using namespace std;class Book{public:Book(char*t=””){s
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有如下程序:
#include<iostream>
using namespace std;
class Book{
public:
Book(char*t=””){strcpy(title,t);}
private:
char title[40];
};
class Novel:public Book{
public:
Novel(char *t=””):Book(t){}
char*Category()const{return”文学”;)
};
int main(){
Book *pb;
pb=new Novel();
cout<<pb->Category();
return 0;
}
若程序运行时输出结果是“文学”,则划线处缺失的语句是
A.char*Category();
B.char*Category()const;
C.virtual char*Category()const;
D.virtual char*Category()const=0;
参考答案: