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%E5%BF%BD%E9%AB%98%E5%BF%BD%E4%BD%8E%E6%80%8E%E4%B9%88%E5%8A%9E => Failed to connect to 101.89.117.144 port 38022: Connection refused"
玩游戏ping忽高忽低怎么办
