import string
def trim(s): start = 0 end = len(s) for i in s: #寻首 if i.isspace() == 0: break else: start += 1 for j in s[::-1]: #寻尾 if j.isspace() == 0: break else: end -= 1 return s[start:end]
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其实我在胡说八道
import string
def trim(s): start = 0 end = len(s) for i in s: #寻首 if i.isspace() == 0: break else: start += 1 for j in s[::-1]: #寻尾 if j.isspace() == 0: break else: end -= 1 return s[start:end]