• 1. (2023高二上·海盐月考) 某python程序如下，程序运行完后，输出s2的值是（     ）

  s1="today"

  s2=""

  for c in s1:

      s2=c+s2

  print(s2)

  A . today B . yadot C . odayt D . tdyoa