擅长:python、mysql、java
<p>应用<a href="https://docs.python.org/2/glossary.html#term-eafp" rel="nofollow">EAFP approach</a>,<em>编译表达式</em>并处理错误。在</p>
<p>例如,不平衡括号:</p>
<pre><code>>>> import re
>>> re.compile(r"(test")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/user/.virtualenvs/so/lib/python2.7/re.py", line 194, in compile
return _compile(pattern, flags)
File "/Users/user/.virtualenvs/so/lib/python2.7/re.py", line 251, in _compile
raise error, v # invalid expression
sre_constants.error: unbalanced parenthesis
</code></pre>