string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%AE%89%E5%B8%88%E5%AE%89%E5%85%A8%E6%8A%80%E6%9C%AF%E8%80%83%E7%82%B9%E9%80%9F%E8%AE%B0 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
注安师安全技术考点速记
