擅长:python、mysql、java
<p>我用Python测试了你的问题urllib.和我发现:</p>
<blockquote>
<p>If you dont have a cookie of this web, it gives you a 503 code and a cookie <code>__cfduid</code>. </p>
<p>During the 503 page ,it send a request <code>/cdn-cgi/l/chk_jschl?xxxxx</code> to get another cookie <code>cf_clearance</code></p>
<p>Then you can use these two cookies and a referer in your header to send the post form.</p>
</blockquote>