下列程序的输出结果是______。 include using namespace std; void fun(int rf) { 下列程序的输出结果是______。include<iostream>using namespace std;void fun(int rf){rf*=2;}int main(){int num=500;fun(num);cout<<num<<endl;return 0;}

下列程序的输出结果是______。 include using namespace std; void fun(int &rf) {

下列程序的输出结果是______。

include<iostream>

using namespace std;

void fun(int &rf)

{

rf*=2;

}

int main()

{

int num=500;

fun(num);

cout<<num<<endl;

return 0;

}


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