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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="/UploadFiles/2021-04-02/move.js">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"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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P70系列延期,华为新旗舰将在下月发布
3月20日消息,近期博主@数码闲聊站 透露,原定三月份发布的华为新旗舰P70系列延期发布,预计4月份上市。
而博主@定焦数码 爆料,华为的P70系列在定位上已经超过了Mate60,成为了重要的旗舰系列之一。它肩负着重返影像领域顶尖的使命。那么这次P70会带来哪些令人惊艳的创新呢?
根据目前爆料的消息来看,华为P70系列将推出三个版本,其中P70和P70 Pro采用了三角形的摄像头模组设计,而P70 Art则采用了与上一代P60 Art相似的不规则形状设计。这样的外观是否好看见仁见智,但辨识度绝对拉满。