string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9B%A2%E9%98%9F%E4%B8%AD%E9%A2%86%E5%AF%BC%E8%80%85%E7%9A%84%E4%BD%8D%E7%BD%AE%E5%92%8C%E8%81%8C%E8%B4%A3 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
团队中领导者的位置和职责
