擅长:python、mysql、java
<p>如果您选中<a href="https://docs.python.org/3/library/functions.html#open" rel="nofollow">official docummentation</a><code>'w'</code>表示</p>
<blockquote>
<p>open for writing, truncating the file first</p>
</blockquote>
<p>如果要保留当前内容,可以在追加模式下打开文件:</p>
<pre><code>open('/path/to/file', 'at')
</code></pre>
<p>这意味着</p>
<blockquote>
<p>open for writing, appending to the end of the file if it exists</p>
</blockquote>