string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%8E%B0%E5%9C%A8%E4%BB%80%E4%B9%88%E5%B7%A5%E4%BD%9C%E5%A5%BD%E5%81%9A => Failed to connect to 101.89.159.206 port 38087: Connection refused"
现在什么工作好做
