下面程序的运行结果为 #include<iostream. h> class A
问题:
下面程序的运行结果为
#include<iostream. h>
class A
public:
A( ) cout < <"1";
~A( ) cout < <"2";
;
class B:public A
public:
B( ) cout < <"3";
~B( ) cout < <"4";
;
void main( )
B b;
A) 1234 B) 1324 C) 1342 D) 3142