用if琢磨了半天,还是借鉴讲解交个作业。
def trim(s):
while s[0:1]==' ':
s=s[1:]
while s[(len(s)-1):len(s)]==' ':
s=s[:-1]
return s
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Mario7788
用if琢磨了半天,还是借鉴讲解交个作业。
def trim(s):
while s[0:1]==' ':
s=s[1:]
while s[(len(s)-1):len(s)]==' ':
s=s[:-1]
return s