效果图如下所示：
具体代码如下所示：
<Meta charset="UTF-8">
weirdo
function cl() {
var c = '0123456789abcdef';
var cc = '#';
cc += c.charAt(Math.round(Math.random() * (c.length - 1)));
cc += c.charAt(Math.round(Math.random() * (c.length - 1)));
cc += c.charAt(Math.round(Math.random() * (c.length - 1)));
cc += c.charAt(Math.round(Math.random() * (c.length - 1)));
cc += c.charAt(Math.round(Math.random() * (c.length - 1)));
cc += c.charAt(Math.round(Math.random() * (c.length - 1)));
return cc;
}
function ling(num) {
for (var i = 1; i <= num; i += 2) {
document.write('
'); } document.write('
'); } for (var i = num; i >= 1; i -= 2) { document.write(''); } document.write('
'); } } ling(15);