thinkpad1234567890的博客

#include #include typedef enum GENDER{MALE,FEMALE}GENDER; typedef char NAME[20]; typedef struct person { NAME name; GENDER s; int age; double income; }person; int main() { person

#include using namespace std; class F { int n; int d; public: F(int n=0, int d=1):n(n),d(d){}; friend istream& operator>>(istream& in,F& a); int getn(){return n;} int getd(){return d;} }; istre