string(277) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%81%9A%E4%B8%80%E4%B8%AA%E7%AE%80%E5%8D%95%E7%9A%84%E6%89%8B%E6%9C%BAapp%E8%A6%81%E5%A4%9A%E5%B0%91%E9%92%B1 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
做一个简单的手机app要多少钱
