s = "Python"
ans = " "
for i in range(len(s)) : c = s [ i ]
if "a" <= c <= "z":
if i % 2 == 0:
c = chr ( ( ord ( c ) - ord ( " a " ) - i ) % 26 + ord ( " a " ) )
else:
ans += c print ( ans )
c = c . upper ( ) # x . upper( )将字符串x中的大写字母转换成小写字母
执行该程序段后,输出的内容是( )