js 分享 运动框架 

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
#div1{
    width:100px;
    height:200px;
    background:red;
    position:absolute;
    left:-100px
    
}
#span1{
    width:20px;
    height:60px;
    background:blue;
    position:absolute;
    line-height:20px;
    top:70px;
    right:-20px;
}
</style>
<script>
window.onload=function(){
    var odiv=document.getElementById('div1');
    
    odiv.onmouseover=function(){
        onStart(0);
        }
        odiv.onmouseout=function(){
        onStart(-100);
        }
        
    }
    var timer=null;
function onStart(oTag){
        var odiv=document.getElementById('div1');
    clearInterval(timer);
    var speed=null;
    if(speed>oTag){
        speed=-10;
        }else{
            speed=10;
            }
    timer=setInterval(function (){
    
        if(odiv.offsetLeft==oTag){
            clearInterval(timer);
            }else{
                odiv.style.left=odiv.offsetLeft+speed+'px';
                }
        },30)
    }
    
    
</script>
</head>

<body>
<div id="div1">
<span id="span1">分享到</span>
</div>
</body>
</html>

关于速度的小解释

分享框
left30 tag300 正
left600 tag30 负

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
div{
    width:200px;
    height:200px;
    background:red;
    filter:alpha(opacity:30);
    opacity:0.3;
}

    
</style>
<script>
window.onload=function(){
    var oDiv=document.getElementById('div1');
    oDiv.onmousemove=function(){
        onStart(100);
        }
    oDiv.onmouseout=function(){
        onStart(30);
        }
    
    }
var timer=null;
var alpha=30;
function onStart(Tag){
    var oDiv=document.getElementById('div1');
    
    clearInterval(timer);
    timer=setInterval(function(){
        var speed=0;
    if(alpha<Tag){
        speed=1;
        }else{
        speed=-1;
            }
        if(alpha==Tag){
            clearInterval(timer);
            }else{
            alpha+=speed;
            oDiv.style.filter='alpha(opacity:'+alpha+')';
            oDiv.style.opacity=alpha/100;
                }
        },30)
    }
</script>
</head>

<body>
<div id="div1"></div>
</body>
</html>

 

posted @ 2017-05-09 22:04  943987243  阅读(130)  评论(0)  编辑  收藏  举报