string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%93%AA%E7%A7%8D%E5%B7%A5%E4%BD%9C%E8%87%AA%E7%94%B1%E8%81%8C%E4%B8%9A%E5%A5%BD => Failed to connect to 101.89.117.144 port 38017: Connection refused"
哪种工作自由职业好
