UA伪装 <---------->UA检测：门户网站会检测对应请求的载体身份标识，如果是浏览器那就认为是正常用户
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headers = { ‘Accept-Encoding‘: ‘gzip, deflate, sdch‘, ‘Accept-Language‘: ‘en-US,en;q=0.8‘, ‘User-Agent‘: ‘Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36‘, ‘Accept‘: ‘text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8‘, ‘Referer‘: ‘http://www.baidu.com/‘, ‘Connection‘: ‘keep-alive‘, }
原文：https://www.cnblogs.com/3-wusen/p/14406719.html
