string(252) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%81%9Aapp%E5%BC%80%E5%8F%91%E7%9A%84%E5%85%AC%E5%8F%B8%E6%9C%89%E5%93%AA%E4%BA%9B => Failed to connect to 101.89.117.144 port 38022: Connection refused"
做app开发的公司有哪些
