用JavaScript编写程序:根据星期几,在页面中显示不同的图片。

<script type="text/javascript">
var Imgs=['1.gif','2.gif','3.gif','4.gif','5.gif','6.gif','7.gif'];
var today=parseInt(new Date().getDay());
today=(today==0)?7:(today-1)
document.write("<img src=\""+Imgs[today]+"\" alt=\"\" />");

</script>