下面程序的运行结果是( )。 #define _CRT_SECURE_NO_WARNINGS #include #include int main() { enum weekday { SUM , MON , TUE , WED , THU , FRI , SAT }; enum weekday date1, date2, date3; date1 = SAT ; date2 = WED ; date3 = SUM ; printf( "date1=%d,date2=%d,date3=%d\n" , date1, date2, date3); system( "pause" ); return 0; }