jquery怎么把以下图片和图片地址分别存在随机数里，我要让他们随机显示

Question

以下分别是img的url和href：
var imgUrl = "http://cgorq.img48.wal8.com/img48/572354_20170714173507/150002495641.jpg";
var href = "http://itaochina.net/goods.php?id=46";

var imgUrl1 = "http://cgorq.img48.wal8.com/img48/572354_20170714173507/150086558411.jpg";
var href1 ="http://www.szzj.gov.cn/";

var imgUrl2 = "http://cgorq.img48.wal8.com/img48/572354_20170714173507/150086558458.jpg";
var href2 = "http://www.szzj.gov.cn/";

Answer 1

var img = [
        {
            url: '1',
            href: '1'
        },
        {
            url: '2',
            href: '2'
        }
    ]
var num = Math.floor(Math.random() * img.length)
$('a').attr({href: img[num].href}).find('img').attr({src: img[num].url})