问题详情

下面这个程序的结果是
#include＜iostream.h＞
class A
{
private:
int a;
public:
void seta() ;int geta() ;};
void A: :seta()
{ a＝1;}
int A: :geta()
{ retum a;}
class B
{ private:
int a;
public:
void seta() ;int geta() ;};
void B: :seta()
{a＝2;}
int B: :geta()
{return a;}
class C: public A，public B
{ private:
int b;
public:
void display() ;};
void C: :display()
{ int b＝geta() ;
cout ＜ ＜ b;}
void main()
{ C c;
c. seta() ;
c. display() ;}
A．1
B．2
C．随机输出1或2
D．程序有错