作业
Topic sourcedef trim(s):
while True:
if s[:1] == ' ':
s = s[1:]
elif s[-1:] == ' ':
s = s[:-1]
else:
return s
- 1
def trim(s):
while True:
if s[:1] == ' ':
s = s[1:]
elif s[-1:] == ' ':
s = s[:-1]
else:
return s
tortoise__knight