有下列Python程序段,程序运行后,输出的结果是?( )
s="United by Emotion" s1="" for i in range(0,len(s),4): c=s[i] if ord(c)>=ord("a"): c=chr(ord(c)-ord("a")+ord("A")) s1=c+s1 print(s1)
UEYON
NOYE
EYON
UEEI