string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%9B%E4%B8%9A%E6%9D%BF%E5%BC%80%E9%80%9A%E9%9C%80%E8%A6%81%E6%BB%A1%E8%B6%B3%E6%9D%A1%E4%BB%B6 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
创业板开通需要满足条件
