问题
单项选择题
请找出下列程序中错误之处 ______。
#include<iostream.h>
class A
private:
int x1;
protected:
int x2;
public:
int x3;
;
class B:public A
private:
int y1;
protected:
int y2;
public:
int y3;
void disp()cout<<x1<<y1<<end1: //A
void set(int i) x2=i; //B
;
void main()
B bb;
bb.x3=10; //C
bb.y3=10; //D
答案
参考答案:A