string(251) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=ad%E6%80%8E%E4%B9%88%E6%8A%8A%E4%B8%AD%E6%96%87%E6%94%B9%E6%88%90%E8%8B%B1%E6%96%87 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
ad怎么把中文改成英文
