string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%8E%89%E8%A6%81%E6%80%8E%E4%B9%88%E5%88%86%E8%BE%A8%E7%9C%9F%E5%81%87 => Failed to connect to 101.89.143.195 port 38205: Connection refused"
玉要怎么分辨真假
