string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%B4%E9%80%9A%E8%BD%A6%E4%B8%80%E5%A4%A9%E5%BC%80%E4%B8%80%E4%B8%A4%E7%99%BE%E6%9C%89%E6%95%88%E6%9E%9C%E5%90%97 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
直通车一天开一两百有效果吗
