string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%8F%AD%E9%95%BF%E5%A6%82%E4%BD%95%E7%AE%A1%E5%A5%BD%E4%B8%80%E4%B8%AA%E7%8F%AD => Failed to connect to 14.18.117.71 port 38093: Connection refused"
班长如何管好一个班
