<style>
* { margin:0px; padding:0px;}
.top { width:200px; overflow:hidden; float:left;}
.top ul {width:200px; overflow:hidden; float:left; }
.top ul li { width:200px; height:100px; background:#ffd800; float:left; margin-bottom:20px;}
</style>
<script>
window.onload = function () {
var count = document.getElementsByTagName("li");
for (var i = 0; i < count.length; i++) {
count[i].onmouseover = function () {
startMove(this, 400);
}
count[i].onmouseout = function () {
startMove(this, 200);
}
}
}
var time = null;
function startMove(obj, end) {
clearInterval(time);
time = setInterval(function () {
var speed = (end - obj.offsetWidth) / 8;
speed = speed > 0 ? Math.ceil(speed) : Math.floor(speed);
if (obj.offsetWidth == end) {
clearInterval(time);
} else {
obj.style.width = obj.offsetWidth + speed + 'px';
}
}, 30)
}
</script>
<body>
<div class="top" id="top">
<ul>
<li></li>
<li></li>
<li></li>
</ul>
</div>
哪位小伙伴能帮我看看,非常感谢
这个代码的完整答案是这样的
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>demo</title>
<style type="text/css">
*{margin: 0;padding: 0;}
ul{list-style-type: none;}
ul li{width: 200px;height: 100px;background: yellow;margin-bottom: 20px;}
</style>
<script type="text/javascript">
window.onload = function(){
var oLi = document.getElementsByTagName('li');
for(var i = 0 ; i < oLi.length ; i++){
oLi[i].timer = null;
oLi[i].onmouseover = function(){
starMove(this,400);
}
oLi[i].onmouseout = function(){
starMove(this,200);
}
}
}
function starMove(obj,iTarget){
clearInterval(obj.timer);
obj.timer = setInterval(function(){
var speed = (iTarget - obj.offsetWidth)/5;
speed=speed>0 ? Math.ceil(speed):Math.floor(speed);
if (obj.offsetWidth == iTarget) {
clearInterval(obj.timer);
}else{
obj.style.width = obj.offsetWidth + speed + "px";
}
},30)
}
</script>
</head>
<body>
<ul>
<li></li>
<li></li>
<li></li>
</ul>
</body>
</html>非常感谢！我写的时候div定死了宽度,所以li就不会变大
代码测试了完全没有问题阿