如何动态设置Scrapy规则？

因此，这是我在@Not_a_Golfer和@nramirezuy的大力帮助下解决问题的方法，我只是在使用它们的两个建议：

class NoFollowSpider(CrawlSpider):def __init__(self, crawl_pages=False, moreparams=None, *args, **kwargs):    super(NoFollowSpider, self).__init__(*args, **kwargs)    # Set the class member from here    if (crawl_pages is True):        NoFollowSpider.rules = ( Rule (SgmllinkExtractor(allow=("", ),), callback="parse_items",  follow= True),)        # Then recompile the Rules        super(NoFollowSpider, self)._compile_rules()    # Keep going as before    self.moreparams = moreparams

谢谢大家的帮助！