string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%92%8C%E6%9C%8B%E5%8F%8B%E6%84%9F%E8%A7%89%E8%B7%9D%E7%A6%BB%E8%B6%8A%E6%9D%A5%E8%B6%8A%E8%BF%9C => Failed to connect to 125.88.227.171 port 38114: Connection refused"
和朋友感觉距离越来越远
