string(262) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=witter%E5%8F%96%E6%B6%88%E5%85%B3%E6%B3%A8%E7%9A%84%E4%BA%BA%E6%89%BE%E4%B8%8D%E5%88%B0%E4%BA%86 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
witter取消关注的人找不到了
