string(234) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BC%80%E5%8F%91app%E7%9A%84%E5%AE%9E%E6%96%BD%E6%96%B9%E6%A1%88 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
开发app的实施方案
