请找出下列程序中错误之处 ______。 #include<iostream.h> classA{private: intx1;protected: int
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
}
A.A
B.B
C.C
D.D