string(346) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%A6%81%E8%B4%A6%E6%96%B9%E6%B3%95%E7%99%BD%E5%AD%97%E9%BB%91%E5%AD%97%E5%86%99%E5%A5%BD%E6%94%BE%E5%9C%A8%E4%BB%80%E4%B9%88%E5%9C%B0%E6%96%B9%E7%94%A8%E7%AC%94%E5%8E%8B%E7%9D%80 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
要账方法白字黑字写好放在什么地方用笔压着
