擅长:python、mysql、java
<p>用Python</p>
<pre><code>import urllib
urllib.urlretrieve("http://www.myserver.com/myfile", "myfile.txt")
</code></pre>
<p><a href="https://docs.python.org/2/library/urllib.html#urllib.urlretrieve" rel="nofollow">^{<cd1>}</a></p>
<blockquote>
<p>Copy a network object denoted by a URL to a local file, if necessary. If the URL points to a local file, or a valid cached copy of the object exists, the object is not copied. </p>
</blockquote>