string(250) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E7%8E%A9%E6%B8%B8%E6%88%8Fping%E4%B8%8D%E7%A8%B3%E5%AE%9A => Failed to connect to 14.18.46.51 port 38206: Connection refused"
为什么玩游戏ping不稳定
