下列程序的输出结果是______。 #include＜iostream＞ using namespace std; Class Test public: Test()cnt++; ～Test()cnt--; static int Count()return cnt; private: static int cnt; ; int Test::cnt=0; int main() cout＜＜Test::Count()＜＜""; Test t1,t2; Test*pT3=new Test; Test*pT4=new Test; cout＜＜Test::Count()＜＜""; delete pT4; delete pT3; cout＜＜Test::Count()＜＜end1; return 0;