py request.post header

headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
           'Accept': 'text/html;q=0.9,*/*;q=0.8,application/json, text/plain, */*',
           #    'Accept': 'text/html;q=0.9,*/*;q=0.8',
           'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
           'Accept-Encoding': 'gzip',
           'Connection': 'close',
           #    'content-type': 'application/json;charset=utf-8',
           'Referer': None  # 注意如果依然不能抓取的话，这里可以设置抓取网站的host
           }