下面程序的运行结果为#include(iostream. hclass A{int num;public:A(int i){num=i;}A(A a){num=a. num++;}void print(){cout};void main(){A a(1),b(a);a. print();b.print();A.11B.12C.21D.22

下面程序的运行结果为

#include(iostream. h>

class A

{

int num;

public:

A(int i){num=i;}

A(A &a){num=a. num++;}

void print(){cout<

};

void main()

{

A a(1),b(a);

a. print();

b.print();

A.11

B.12

C.21

D.22


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