若有以下程序: #include <iostream> using namesp
题型:单项选择题
问题:
若有以下程序:
#include <iostream>
using namespace std;
class A
private:
int x;
protected:
int y;
public:
int z;
void setx(int i)
x=i;
int getx ()
return x;
;
class B : protected A
public:
void setvalue(int a, int b, int c)
setx (
A.;
&nbs