这个程序错误在哪里?#include using namespace std;class Date{public:voi

这个程序错误在哪里?#include using namespace std;class Date{public:void setDate(int y,int m,int d);void showDate();private:int year;int month;int year;};void Date::setDate(int y,int m,int d){year=y;month=m;day=d;}void Date::showDate(){cout