string(269) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B8%B8%E6%88%8Fping%E5%80%BC%E4%B8%8D%E7%A8%B3%E5%AE%9A%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3%E7%9A%84 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
游戏ping值不稳定怎么解决的
