string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B1%80%E5%9F%9F%E7%BD%91%E7%9A%84%E5%85%B1%E4%BA%AB%E6%96%87%E4%BB%B6 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
局域网的共享文件
