string(241) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%9B%E5%BB%BAapp%E5%B9%B3%E5%8F%B0%E7%9A%84%E6%B5%81%E7%A8%8B%E5%9B%BE => Failed to connect to 14.116.215.7 port 38225: Connection refused"
创建app平台的流程图
