def trim(s): if s == '': return s while s[0]==' ' and len(s)>1: s=s[1:] while s[-1]==' 'and len(s)>1: s=s[:-1] if s == ' ': return '' return s
Sign in to make a reply
鏖战血犹殷
def trim(s): if s == '': return s while s[0]==' ' and len(s)>1: s=s[1:] while s[-1]==' 'and len(s)>1: s=s[:-1] if s == ' ': return '' return s