题解 | #单词倒排#
单词倒排
http://www.nowcoder.com/practice/81544a4989df4109b33c2d65037c5836
用空格" "替代非字母
def check(a):
L=""
for i in a:
if i.isalpha():
L+=i
else:
L+=" "
L1=L.split()
return " ".join(L1[::-1])
while True:
try:
print(check(input()))
except:
break