擅长:python、mysql、java
<p>引用Python术语表</p>
<blockquote>
<p><a href="http://docs.python.org/2/glossary.html" rel="nofollow">Easier to ask for forgiveness than permission</a>:</p>
<p>Easier to ask for forgiveness than permission. This common Python
coding style assumes the existence of valid keys or attributes and
catches exceptions if the assumption proves false. This clean and fast
style is characterized by the presence of many try and except
statements. The technique contrasts with the LBYL style common to many
other languages such as C.</p>
</blockquote>
<p>Python中处理运行时错误的标准方法是try\except。<code>try</code>打印字符串,并<code>except UnicodeEncodeError</code>在出现错误时进行回退。你知道吗</p>
<pre><code>>>> try:
... s=u"\U0001d54d"
... print s
... except UnicodeEncodeError:
... print "V"
...
</code></pre>