string(227) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%8B%8F27%E8%B7%9Ff15%E6%A8%A1%E6%8B%9F%E7%A9%BA%E6%88%98 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
苏27跟f15模拟空战
