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请在mian函数中填空使下面程序的输出结果为1 1。 include class A { private:

请在mian函数中填空使下面程序的输出结果为1 1。

include<iostream.h>

class A

{ private:

int a;

int b;

public:

A( ):a(0) ,b(1) { }

void show( ) { cout < < a < < " " < < b;} };

class B

{ private:

int a;

int c;

public:

B( ):a(1),


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