string(251) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9F%A5%E7%9C%8B%E8%87%AA%E5%B7%B1%E7%9A%84%E6%89%8B%E6%9C%BAip%E5%9C%B0%E5%9D%80 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
查看自己的手机ip地址
