string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A5%B3%E7%94%9F%E8%80%83%E4%BB%80%E4%B9%88%E8%AF%81%E4%B9%A6%E6%AF%94%E8%BE%83%E5%90%83%E9%A6%99%E5%91%A2 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
女生考什么证书比较吃香呢
