string(285) "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%E8%B7%9D%E7%A6%BB%E5%BE%88%E8%BF%9C%E6%84%9F%E6%83%85%E4%B8%8D%E5%8F%98%E7%9A%84%E4%BE%8B%E5%AD%90 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
朋友距离很远感情不变的例子
