string(266) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BF%A1%E6%81%AF%E6%8A%80%E6%9C%AF%E8%AF%BE%E9%9B%86%E4%BD%93%E7%A0%94%E8%AE%A8%E8%AE%B0%E5%BD%95 => Failed to connect to 101.91.112.32 port 38162: Connection refused"
信息技术课集体研讨记录
