Ajax初学者试用，用post和get方法传递用户名和密码-Ajax beginners to try, with the post and get method to pass the user name and password

一个简单的pushlet消息推送，后台传入要推送的内容，然后前台无刷新使用ajax长连接来获取到，非常使用，适用于一般的网站站内消息。-A simple pushlet message push, backstage pass to push, then the front desk without refresh using ajax long connection to get to very applicable to the general station' s website m