有如下程序: #include <iostream> using namespace std; class MyClass { public:MyClass() { ++count; }~MyClass() { --count; }static int getCount() { return count; } private:static int count; }; int MyClass::count=0; int main() {MyClass obj;cout<<obj.getCount();MyClass *ptr=new MyClass;cout<<MyClass::getCount();delete ptr;cout<<MyClass::getCount();return 0; }程序的输出结果是
A.121
B.232
C.221
D.122