string(253) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2023%E4%B8%80%E9%80%A0%E6%A1%88%E4%BE%8B%E7%9C%9F%E9%A2%98%E7%AC%AC%E4%BA%94%E9%A2%98 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
2023一造案例真题第五题
