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你可知我从未惧怕奔赴

#1 Created at ... [Delete] [Delete and Lock User] 
if s==0:
        return s
else:
    while s[:1]==' ':
        s=s[1:]
    while s[-1:]==' ':
        s=s[:-1]
return s

YCH_2018

#2 Created at ... [Delete] [Delete and Lock User]

大佬 你这个运行不出来

YCH_2018

#3 Created at ... [Delete] [Delete and Lock User]

def trim(s): if s==0: return s else: while s[:1]==' ': s=s[1:] while s[-1:]==' ': s=s[:-1] return s

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