How do I dynamically change the content in an ifra

2020-01-27 10:39发布

问题:

I was wondering if it is possible to have a site with an iframe and some jquery code that changes the iframe content every 30 seconds. The content is in different webpages.

Something like this:

<html>
  <head>
    <script type="text/javascript" src="jquery.js"></script>
    <script>
      $(document).ready(function(){
        var array = new array();
        array[0] = 'http://webPage1.com';
        array[1] = 'http://webPage2.com';
        // And so on.
        // Do something here to change the iframe every 30 second
      });
    </script>
  </head>
  <body>
    <iframe id="frame"></iframe>
  </body>
</html>

回答1:

<html>
  <head>
    <script type="text/javascript" src="jquery.js"></script>
    <script>
      $(document).ready(function(){
        var locations = ["http://webPage1.com", "http://webPage2.com"];
        var len = locations.length;
        var iframe = $('#frame');
        var i = 0;
        setInterval(function () {
            iframe.attr('src', locations[++i % len]);
        }, 30000);
      });
    </script>
  </head>
  <body>
    <iframe id="frame"></iframe>
  </body>
</html>


回答2:

If you just want to change where the iframe points to and not the actual content inside the iframe, you would just need to change the src attribute.

 $("#myiframe").attr("src", "newwebpage.html");


回答3:

var handle = setInterval(changeIframe, 30000);
var sites = ["google.com", "yahoo.com"];
var index = 0;

function changeIframe() {
  $('#frame')[0].src = sites[index++];
  index = index >= sites.length ? 0 : index;
}


标签: jquery iframe