string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E4%B8%93%E9%80%89%E9%94%99%E4%B8%93%E4%B8%9A%E4%BA%86%E6%80%8E%E4%B9%88%E5%8A%9E%E5%95%8A => Failed to connect to 14.18.117.71 port 38164: Connection refused"
中专选错专业了怎么办啊
