string(319) "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%E9%A2%86%E5%AF%BC%E8%80%85%E5%BA%94%E5%85%B7%E5%A4%87%E7%9A%84%E7%B4%A0%E8%B4%A8%E5%92%8C%E8%83%BD%E5%8A%9B%E6%98%AF%E4%BB%80%E4%B9%88 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
团队领导者应具备的素质和能力是什么
