string(271) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E4%BD%95%E9%98%B2%E6%AD%A2%E8%B9%AD%E7%BD%91wifi%E7%9A%84%E5%85%AD%E7%A7%8D%E6%96%B9%E6%B3%95 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
如何防止蹭网wifi的六种方法
