有下列程序: #include<iostream> using namespace std; classTest{ public: Test(){n+=2;} ~Test
有下列程序: #include<iostream> using namespace std; classTest{ 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
A.n=0
B.n=l
C.n=2
D.n=3