您的位置：首页 > 其它

鼠标滚动事件

2017-09-27 15:04 162 查看

<head>
<meta charset="UTF-8">
<title></title>
<style>
body {
margin: 0;
padding: 0;
}

.cont {
height: 5000px;
}

#top {
position: fixed;
width: 100%;
height: 50px;
top: 0px;
left: 0px;
background-color: cornflowerblue;
display: none;
}

#left {
position: fixed;
top: 150px;
left: 20px;
height: 500px;
width: 50px;
background-color: lawngreen;
display: none;
}

#left ul{
list-style: none;
padding-left:0px ;
}

#left ul li{
border: 1px solid black;
text-align: center;
margin-top: 10px;
}
</style>

<script>
//          var a = 0;

//滚动事件
function myScroll() {
//              a++;

var i = document.body.scrollTop;
var top = document.getElementById("top");
var left = document.getElementById("left");
var f1 = document.getElementById("f1");
var f2 = document.getElementById("f2");
var f3 = document.getElementById("f3");
var f4 = document.getElementById("f4");
var f5 = document.getElementById("f5");

//控制顶部
if(i >= 1000) {
top.style.display = "block";
top.innerHTML = i;
} else {
top.style.display = "none";
}

//控制左侧
if(i >= 2000) {
left.style.display = "block";
} else {
left.style.display = "none";
}

//              显示楼层
if(i >= 2000 && i <= 2500) {
f1.className = "a";
f2.className = "";
f3.className = "";
f4.className = "";
f5.className = "";
} else if(i > 2500 && i <= 3000) {
f1.className = "";
f2.className = "a";
f3.className = "";
f4.className = "";
f5.className = "";
} else if(i > 3000 && i <= 3500) {
f1.className = "";
f2.className = "";
f3.className = "a";
f4.className = "";
f5.className = "";
} else if(i > 3500 && i <= 4000) {
f1.className = "";
f2.className = "";
f3.className = "";
f4.className = "a";
f5.className = "";
} else if(i > 4000 && i <= 4500) {
f1.className = "";
f2.className = "";
f3.className = "";
f4.className = "";
f5.className = "a";
}
}
</script>

</head>

<body onscroll="myScroll()">

<div id="left">
<ul>
<li id="f1">F1</li>
<li id="f2">F2</li>
<li id="f3">F3</li>
<li id="f4">F4</li>
<li id="f5">F5</li>
</ul>
</div>

<div id="top"></div>
<div class="cont"></div>

</body>

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签： 鼠标

相关文章推荐

新的分享

章节导航