string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%8B%E5%8F%8B%E7%BD%91%E8%BF%98%E8%83%BD%E7%99%BB%E9%99%86%E5%90%97%E7%9F%A5%E4%B9%8E => Failed to connect to 61.171.74.35 port 38027: Connection refused"
朋友网还能登陆吗知乎
