擅长:python、mysql、java
<pre><code>>>> s1='cn=Name Surname (123)'
>>> s1[:17] + '\\' + s1[17:]
'cn=Name Surname (\\123)'
</code></pre>
<p>它看起来像两个反斜杠,但实际上它只包含一个反斜杠。</p>
<pre><code>>>> print(s1[:17] + '\\' + s1[17:])
cn=Name Surname (\123)
>>> print s1[:17] + '\\' + s1[17:-1] + '\\' + s1[-1:]
cn=Name Surname (\123\)
</code></pre>