string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E6%B0%B4%E5%88%A9%E8%80%81%E5%B8%88%E5%93%AA%E4%B8%AA%E6%AF%94%E8%BE%83%E5%A5%BD => Failed to connect to 101.89.159.206 port 38087: Connection refused"
一建水利老师哪个比较好
