old_contents: 
  from BasicSpiderConfig import ExRule
  
  class Config:
  
      list_css_rules = { 
          '.video-list-item.video-no-tag': {
              'room_name': '.video-title::text',
              'author': '.video-nickname::text',
              'people_count': '.video-number::text',
              'tag': '.video-cate::text',
          }   
      }
  
      ex_rule = ExRule('http://www.panda.tv/all$', list_css_rules=list_css_rules)
  
      name='pandatv'
      allowed_domains=['panda.tv']
      start_urls=['http://www.panda.tv/all']
      ex_rules = [ex_rule]
      follow = False
  
  
new_contents: 
  from BasicSpiderConfig import ExRule
  
  class Config:
  
      list_css_rules = { 
          '.video-list-item.video-no-tag': {
              'room_name': '.video-title::text',
              'author': '.video-nickname::text',
              'people_count': '.video-number::text',
              'tag': '.video-cate::text',
          }   
      }
  
      ex_rule = ExRule('http://www.panda.tv/all$', list_css_rules=list_css_rules)
  
      name='pandatv'
      allowed_domains=['panda.tv']
      start_urls=['http://www.panda.tv/all']
      ex_rules = []
      follow = False
  
  
subject: remove rule, only crawl start_urls