string(262) "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%E4%B8%8D%E7%A8%B3%E5%AE%9A%E6%80%8E%E4%B9%88%E5%9B%9E%E4%BA%8B => Failed to connect to 101.89.159.206 port 38075: Connection refused"
玩游戏ping不稳定怎么回事
