string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B2%A1%E6%9C%89%E7%89%B9%E9%95%BF%E5%A6%82%E4%BD%95%E5%86%99 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
没有特长如何写
