def trim(s): length = len(s) for i in range(length-1): for j in range(1,length): if s[i] != ' ' and s[-j] != ' ': s = s[i:-j] return s
s = str(input('请输入:')) print(trim(s))
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夏哲宇zg
def trim(s): length = len(s) for i in range(length-1): for j in range(1,length): if s[i] != ' ' and s[-j] != ' ': s = s[i:-j] return s
s = str(input('请输入:')) print(trim(s))