javascript+html5实现仿flash滚动播放图片的方法

时间：2021-05-26

本文实例讲述了javascript+html5实现仿flash滚动播放图片的方法。分享给大家供大家参考。具体如下：

html部分：

<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <script src="move.js" type="text/javascript"></script> <link href="css.css" type="text/css" rel="stylesheet"> </head> <body> <div id="playImages" class="play"> <ul class="big_pic"> <div class="prev"></div> <div class="next"></div> <a class="mark_left" href="javascript:;"></a> <a class="mark_right" href="javascript:;"></a> <li style="z-index: 1"><img src="image/1.JPG"></li> <li><img src="image/2.JPG"></li> <li><img src="image/3.JPG"></li> <li><img src="image/4.JPG"></li> <li><img src="image/5.JPG"></li> <li><img src="image/6.JPG"></li> </ul> <div class="small_pic"> <ul> <li><img src="image/1.JPG"></li> <li><img src="image/2.JPG"></li> <li><img src="image/3.JPG"></li> <li><img src="image/4.JPG"></li> <li><img src="image/5.JPG"></li> <li><img src="image/6.JPG"></li> </ul> </div> </div> </body> </html>

css部分：

body{ margin: 0px; padding: 0px; }ul{ margin: 0px; padding: 0px; }li{ list-style: none; } .play{ width: 600px; height: 550px; left: 30px; top: 20px;position: relative; border: 2px solid black;} .big_pic{ width: 600px; height: 400px; position: relative;background: snow; overflow: hidden;} .big_pic li{ width: 600px; height: 400px; overflow:hidden;position: absolute; background: black; z-index: 0} .big_pic li img{ width: 600px; height: 400px;position: absolute;} .mark_left{ width: 300px; height: 400px;background: orange; position: absolute; left: 0px; top: 0px;z-index: 3000; filter: alpha(opacity:0); opacity: 0;} .mark_right{ width: 300px; height: 400px; background: cornflowerblue;position: absolute; left: 300px; top: 0px;z-index: 3000; filter: alpha(opacity:0); opacity: 0;} .prev{ width: 60px; height: 60px; background: url(image/btn.gif) no-repeat; position: absolute; z-index: 3001; top: 170px; left: 10px; cursor: pointer; filter: alpha(opacity:0); opacity: 0;} .next{ width: 60px; height: 60px; background: url(image/btn.gif) no-repeat 0 -60px; position: absolute; z-index: 3001; top: 170px; right: 10px;cursor: pointer; filter: alpha(opacity:0); opacity: 0;} .small_pic{ width: 594px; height: 144px; position: relative;top: 0;left: 0;border: 3px solid paleturquoise;overflow: hidden;} .small_pic ul{ width: 594px; height: 144px; position: absolute; left: 0px;top: 0px;} .small_pic li img{ width: 194px; height: 140px; } .small_pic ul li{ border:2px solid paleturquoise;width: 194px; height: 140px; float: left;cursor: pointer; filter: alpha(opacity:60); opacity: 0.6;}

JS部分：

window.onload=function(){ var oPlay=document.getElementById('playImages'); var uBig=getClass(oPlay,'big_pic')[0]; var uSmall=getClass(oPlay,'small_pic')[0]; var oPrev=getClass(oPlay,'prev')[0]; var oNext=getClass(oPlay,'next')[0]; var aLeft=getClass(oPlay,'mark_left')[0]; var aRight=getClass(oPlay,'mark_right')[0]; var oUlSmall=uSmall.getElementsByTagName('ul')[0]; var oSli=uSmall.getElementsByTagName('li'); var oBli=uBig.getElementsByTagName('li'); oUlSmall.style.width=oSli[0].offsetWidth*oSli.length+'px'; oPrev.onmouseover=aLeft.onmouseover=function(){ move(oPrev,100,'opacity'); }; oPrev.onmouseout=aLeft.onmouseout=function(){ move(oPrev,0,'opacity'); }; oNext.onmouseover=aRight.onmouseover=function(){ move(oNext,100,'opacity'); }; oNext.onmouseout=aRight.onmouseout=function(){ move(oNext,0,'opacity'); }; var index=0; var newZIndex=2; for (var i=0;i<oSli.length;i++){ oSli[i].num=i; oSli[i].onclick=function(){ if(this.num==index) { return; } else{ index=this.num; tab(); } }; oSli[i].onmouseover=function(){ move(this,100,'opacity'); }; oSli[i].onmouseout=function(){ if(this.num!=index){ move(this,60,'opacity'); } }; } oPrev.onclick=function(){ index--; if(index==-1){ index=oSli.length-1; } tab(); }; oNext.onclick=function(){ index++; if(index==oBli.length){ index=0; } tab(); }; function tab() { oBli[index].style.height = 0; oBli[index].style.zIndex = newZIndex++; move(oBli[index], 400, 'height'); for (var i = 0; i < oSli.length; i++) { move(oSli[i], 60, 'opacity'); } move(oSli[index], 100, 'opacity'); if (index == 0) { move(oUlSmall, 0, 'left'); } else if (index == oSli.length - 1) { move(oUlSmall, -(index - 2) * oSli[0].offsetWidth, 'left'); } else { move(oUlSmall, -(index - 1) * oSli[0].offsetWidth, 'left'); } }; var timer=setInterval(oNext.onclick,3000);; oPlay.onmouseover=function(){ clearInterval(timer); }; oPlay.onmouseout=function(){ timer=setInterval(oNext.onclick,3000); }; }; function getStyle(obj,name){ if(obj.currentStyle){ return obj.currentStyle[name]; }else{ return getComputedStyle(obj,false)[name]; } }; function move(obj,iTarget,name){ clearInterval(obj.timer); obj.timer=setInterval(function(){ var cur=0; if(name=='opacity'){ cur=Math.round(parseFloat(getStyle(obj,name))*100); }else{ cur=parseInt(getStyle(obj,name)); } var speed=(iTarget-cur)/30; speed=speed>0?Math.ceil(speed):Math.floor(speed); if(cur==iTarget){ clearInterval(obj.timer); }else{ if(name=='opacity'){ obj.style.opacity=(cur+speed)/100; obj.style.filter='alpha(opacity:'+cur+speed+')'; }else{ obj.style[name]=cur+speed+"px"; } } },30); }; function getClass(oParent,name){ var oArray=[]; var oBj=oParent.getElementsByTagName('*'); for(var i=0;i<oBj.length;i++){ if(oBj[i].className==name){ oArray.push(oBj[i]); } } return oArray; }

希望本文所述对大家的javascript程序设计有所帮助。

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