string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%A2%86%E5%AF%BC%E8%80%85%E4%B8%8E%E5%9B%A2%E9%98%9F%E7%9A%84%E5%90%88%E7%90%86%E6%80%A7 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
领导者与团队的合理性
