string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%83%E5%B7%A7%E6%9D%BF%E6%91%86%E6%88%90%E9%B1%BC%E7%9A%84%E5%BD%A2%E7%8A%B6 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
七巧板摆成鱼的形状
