def trim(n): r = '' for i in range(1, len(n)): if n[i-1: i] != ' ': r = r + n[i-1: i] return r
还可以简化下：
def trim(n): r = '' for i in n: if i != ' ': r = r + i return r
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千羽王爵
def trim(n): r = '' for i in range(1, len(n)): if n[i-1: i] != ' ': r = r + n[i-1: i] return r