使用 迈云 Ajax 类可以无刷新 发送 GET 或 POST 请求，通过放置安全策略文件可以跨域访问网站，获取内容，适合多站点间的互联互通。-Ajax class can use the step goes to send GET or POST without refresh request, by placing security policy files can be cross-domain access to sites, access to content, for interoperability between multi-site.