string(310) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%85%AC%E5%8F%B8%E8%A6%81%E4%B8%8A%E5%B8%82%E9%9C%80%E8%A6%81%E5%93%AA%E4%BA%9B%E6%9D%A1%E4%BB%B6%E5%92%8C%E6%89%8B%E7%BB%AD%E8%B4%B9%E7%94%A8 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
公司要上市需要哪些条件和手续费用
