string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%8D%E4%BC%9A%E5%B9%B2%E6%B4%BB%E4%BA%86%E6%80%8E%E4%B9%88%E5%8A%9E => Failed to connect to 14.18.117.71 port 38041: Connection refused"
不会干活了怎么办
