29 下列的 C++語言程式執行後輸出為何?
#include <iostream>
#include <string>
using namespace std;
int main()
{
int a=0, b=0;
string * s1=new string("test");
string * s2=new string("test");
if (s1==s2) a=a+2;
if (*s1==*s2) b=b+2;
count<<a<<" "<<b;
(A)0 0
(B)0 2
(C)2 0
(D)2 2