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去除空格

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夕桐

#1 Created at ... [Delete] [Delete and Lock User] 
# -*- coding: utf-8 -*-def trim(s):
    if len(s) == 0:
        return ''    if s[0] == ' ':
        s = trim(s[1:])
    elif s[-1] == ' ':
        s = trim(s[:-1])
    return s

忽闻垂钓碧溪上

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

比我写得简洁多了，发现了新大陆

栩棂

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

这是递归吗？好简洁！

不瘦到八十五不改名。

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

这样没法去中间的空格吧，我看他测试里还有一个‘ hello world ’

不瘦到八十五不改名。

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

没事了我傻了

Peaked cap

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

这个代码太美了

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