string(227) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%8B%8F27%E4%B8%8Ef15%E6%95%B0%E6%8D%AE%E5%AF%B9%E6%AF%94 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
苏27与f15数据对比
