string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%8B%B9%E6%9E%9C%E6%89%8B%E6%9C%BA%E7%BD%91%E9%80%9F%E5%8F%98%E5%BE%97%E5%BE%88%E6%85%A2 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
苹果手机网速变得很慢
