擅长:python、mysql、java
<p>来自<a href="http://docs.python.org/2/library/string.html#template-strings" rel="nofollow">docs</a>:</p>
<blockquote>
<p><code>$$</code> is an escape; it is replaced with a single <code>$</code>.</p>
</blockquote>
<p>如果您想要双<code>$</code>,那么您可以使用如下内容:</p>
<pre><code>>>> obj = Template("$$$$Tag$$$$")
>>> obj.safe_substitute({})
'$$Tag$$'
>>> obj.safe_substitute({'Tag':1})
'$$Tag$$'
>>> obj = Template("$$$Tag$$$") #First $ escapes the second $
>>> obj.safe_substitute({'Tag':1})
'$1$$'
</code></pre>