48. 有如下程序：
#include <iostream>
#include <string>
using namespace std;
class MyBag{
public:
friend int NancyShow(MyBag& bag);
MyBag(string br="ABC"):brand(br) { }
private:
string brand;
};
int NancyShow(MyBag& bag){
if(bag.brand=="ABC") return 1;
else return 0;
}
int main(){
int count=0;
MyBag arrays[4] = {MyBag("CityLife"),MyBag("ABC")};
for(int i=0;i<4;i++)
count+=NancyShow(arrays[i]);
cout<<count;
return 0;
}
运行时的输出结果是______。
