string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%94%BF%E6%B2%BB%E4%BF%AE%E5%85%BB%E6%9C%89%E5%BE%85%E6%8F%90%E5%8D%87 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
政治修养有待提升
