string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%9D%E7%BA%A7%E4%BB%80%E4%B9%88%E6%97%B6%E5%80%99%E5%87%BA%E7%BB%93%E6%9E%9C => Failed to connect to 101.89.117.144 port 38022: Connection refused"
初级什么时候出结果
