string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BB%99%E9%A2%86%E5%AF%BC%E6%8F%90%E7%9A%84%E5%BB%BA%E8%AE%AE%E5%8F%AB%E4%BB%80%E4%B9%88 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
给领导提的建议叫什么
