AJAX技术的使用,Ajax发送请求比较友好,可以在不刷新页面的情况下发送请求,本软件是通过JQUERY来发送ajax请求,并发送和接收json数据-Using AJAX technology, Ajax sends a request more friendly, you can send requests without refreshing the page, the software is to send ajax request by JQUERY, and send and receive json data