string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%87%91%E8%9E%8D%E8%A1%8C%E4%B8%9A%E8%BF%98%E6%9C%89%E5%89%8D%E6%99%AF%E5%90%97 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
金融行业还有前景吗
