string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%89%8B%E6%9C%BA%E8%BD%AF%E4%BB%B6%E5%BC%80%E5%8F%91%E6%AD%A5%E9%AA%A4 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
手机软件开发步骤
