擅长:python、mysql、java
<pre><code>st = "\B1\B1xxA1xxMdl1zzInoAEROzzMofIN"
s = re.sub(r"\\","",st)
idx = s.rindex("B1")
print s[idx:]
</code></pre>
<p>输出=<code>'B1xxA1xxMdl1zzInoAEROzzMofIN'</code></p>
<p>或者</p>
^{pr2}$
<p>输出=<code>'B1xxA1xxMdl1zzInoAEROzzMofIN'</code></p>