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用户7686226831

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

用户7686226831

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

if s == ' ':

    return s

if s[0] == ' ':

    return trim(s[1:])

else:

    if s[-1] == ' ':

        return trim(s[:-1])

return s

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