擅长:python、mysql、java
<p>下面是python3.4.3上有意义的<em>答案的性能:</p>
<pre><code>In [4]: timeit.timeit('s.split("|", 2)[1]', 's = "78|Indonesia|Pamela|Reid|preid25@gravatar.com|147.3.67.193"')
Out[4]: 0.43930888699833304
In [10]: timeit.timeit('re.search(r"^[^a-zA-Z]*([a-zA-Z]+)", s).group(1)', 's = "78|Indonesia|Pamela|Reid|preid25@gravatar.com|147.3.67.193"; import re')
Out[10]: 1.234878903022036
In [16]: timeit.timeit('re.search("^\d*\|(\w+?)?\|", s).group(1)', 's = "78|Indonesia|Pamela|Reid|preid25@gravatar.com|147.3.67.193"; import re')
Out[16]: 1.8305770770530216
</code></pre>
<p>如果没有管道:</p>
^{pr2}$