for a in range(len(s):

  print(a,end=" ")

程序运行时输出正确的结果是（ ）

while 5:

关于这条语句说法正确的是 ( )

ss = set ("htslbht")

sorted (ss)

for i in ss:print (i,end = '')

  print (i,end = '')

s=0

for i in range (1,11):

s=s+i

i=i+1

print (s)

以上程序去掉那一语句，将不影响程序的功能 ( )

S = 'Pame'

for i in range (len (S)):

  print (S [-i],end="")

import random ls = ['a','b','c','d']

ls = ['a','b','c','d']

print (random.sample (ls,2))