string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E9%80%A0%E6%A1%88%E4%BE%8B%E7%AD%94%E9%A2%98%E7%BA%B8 => Failed to connect to 101.89.143.195 port 38205: Connection refused"
一造案例答题纸
