jquery - 图像随机淡入和淡出

Question

我想从页面加载到关闭期间随机淡入和淡出一些图像。我这样到底是为了什么。CSS

#block{position:relative;top:100px;left:100px;}

HTML

<div id="block">
<img src="images/block/blockone.jpg"width="95"height="95">
<img src="images/block/blocktwo.jpg"width="95"height="95">
//Five images as such
</div>

脚本

function random(n){
return Math.floor(Math.random()*n);
var transition_time=500;
var waiting_time=500;
var images=$('div#block img');
var n=images.length;
var current=random(n);
images.hide();
images.eq(current).show();
var interval_id=setInterval(function(){
images.eq(current).fadeOut(transition_time,function(){current=random(n);
images.eq(current).fadeIn(transition_time);
});
},2*transition_time+waiting_time);

它不起作用，我真的很想听听你的建议

Answer 1

代码有语法错误，也将代码移到domreadyhadler下

jQuery(function(){
    function random(n) {
        return Math.floor(Math.random() * n);
    }// this was missing
    var transition_time = 500;
    var waiting_time = 500;
    var images = $('div#block img').hide();
    var n = images.length;
    var current = random(n);
    images.hide();
    images.eq(current).show();

    var interval_id = setInterval(function () {
        images.eq(current).fadeOut(transition_time, function () {
            current = random(n);
            images.eq(current).fadeIn(transition_time);
        });
    }, 2 * transition_time + waiting_time);
})

演示:Fiddle