string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%8F%E6%98%8E%E6%80%8E%E4%B9%88%E6%8B%BF%E5%88%B0%E8%AF%81%E7%9A%84 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
夏明怎么拿到证的
