string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%89%E4%BB%80%E4%B9%88%E5%B0%8F%E5%88%9B%E4%B8%9A%E4%B8%8D%E7%B4%AF%E7%9A%84 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
有什么小创业不累的
