string(271) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%8E%A9%E6%B8%B8%E6%88%8Fping%E7%AA%81%E7%84%B6%E5%8F%98%E9%AB%98%E4%B8%80%E4%BC%9A%E5%A5%BD%E4%BA%86 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
玩游戏ping突然变高一会好了
