有如下程序：
#include ＜iostream＞
using namespace std;
class Test
public:
Test() n+=2;
～Test() n-=3;
static int getNum() return n;
private:
static int n;
;
int Test::n=1;
int main()

Test* p=new Test;
delete p;
cout＜＜'n='＜＜Test::getNum() endl;
return 0;

执行后的输出结果是 ( ) 。