string(230) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B2%E6%96%B9%E6%8A%80%E6%9C%AF%E5%91%98%E8%81%8C%E8%B4%A3 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
甲方技术员职责
