string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B9%B0%E8%82%A1%E7%A5%A8%E9%9C%80%E8%A6%81%E5%BC%80%E9%80%9A%E4%BB%80%E4%B9%88%E6%9D%83%E9%99%90%E5%92%8C%E6%89%8B%E7%BB%AD => Failed to connect to 101.89.143.195 port 38175: Connection refused"
买股票需要开通什么权限和手续
