string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%8D%E8%87%AA%E7%94%B1%E7%9A%84%E5%B7%A5%E4%BD%9C%E6%9C%89%E5%93%AA%E4%BA%9B%E8%A1%8C%E4%B8%BA => Failed to connect to 101.89.117.144 port 38022: Connection refused"
不自由的工作有哪些行为
