• 妙味——图片淡入淡出


    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
    <head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title>Document</title>
    <style>
    #img1{
        opacity: 0.3;
        filter: alpha(opacity=30);
        width: 400px;
        height: 400px;
    }
    </style>
    <script>
    window.onload=function(){
        var oImg = document.getElementById('img1');
    
        oImg.onmouseover=function(){
            startMove(100);
        };
    
        oImg.onmouseout=function(){
            startMove(30);
        };
    };
    
    var timer = null;
    var alpha = 30;
    
    function startMove(iTarget){
        var oImg = document.getElementById('img1');
    
        clearInterval(timer);
        timer=setInterval(function(){
            var iSpeed = 0;
            if(alpha<iTarget)
            {
                iSpeed=5;
            }
            else
            {
                iSpeed=-5;
            }
    
            if(alpha==iTarget)
            {
                clearInterval(timer);
            }
            else
            {
                alpha+=iSpeed;
                // document.title=alpha;
                oImg.style.opacity=alpha/100;
                oImg.style.filter='alpha:(opacity:'+alpha+')';
            }
    
        },30);
    };
    </script>
    </head>
    <body>
    <img src="fade.jpg" alt="" id="img1" />
    </body>
    </html>
    高否?富否?帅否? 否? 滚去学习!
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  • 原文地址:https://www.cnblogs.com/baixc/p/3477640.html
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