擅长:python、mysql、java
<p>{cd1>参数集中的参数:</p>
<pre><code>class MySpider(CrawlSpider):
def __init__(self, user_id='', *args, **kwargs):
self.user_id = user_id
super(MySpider, self).__init__(*args, **kwargs)
</code></pre>
<p>并在管道的<a href="http://doc.scrapy.org/en/latest/topics/item-pipeline.html#open_spider">^{<cd2>}</a>方法中读取它们:</p>
^{2}$