string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%8B%8F27%E8%B7%9F%E6%AD%BC16%E6%80%8E%E4%B9%88%E5%8C%BA%E5%88%86 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
苏27跟歼16怎么区分
