urls = {
    '163':'http://tech.163.com/smart/',
    '21ic':'http://embed.21ic.com/news/technology/',
    '36kr':'http://36kr.com/',
    '51cto':'http://ai.51cto.com/',
    'ailab':'http://ai.ailab.cn/',
    'baidu':'http://news.baidu.com/internet/',
    'baijia':'https://baijia.baidu.com/channel?cat=1',
    'csdn':'http://blog.csdn.net/wemedia.html?category=2',
    'geekpark':'http://www.geekpark.net/',
    'huxiu':'https://www.huxiu.com/channel/104.html',
    'iresearch':'http://www.iresearch.cn/',
    'ithome':'http://next.ithome.com/ai',
    'jobbole':'http://blog.jobbole.com/category/it-tech/',
    'kejilie':'http://www.kejilie.com/channel/rengongzhineng.html',
    'lanjingtmt':'http://www.lanjingtmt.com/',
    'leiphone':'https://www.leiphone.com/',
    'raincent':'http://www.raincent.com/list-85-1.html',
    'readhub':'https://readhub.me/news',
    'sina':'http://tech.sina.com.cn/internet/',
    'techcrunch':'http://techcrunch.cn/',
    'tencent':'http://tech.qq.com/',
    'weiot':'http://www.weiot.net/articlelist-7-0-1.html',
}