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js图片向右一张张滚动效果实例代码

  • 时间:2021-03-11 11:07 编辑: 来源: 阅读:
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摘要:js图片向右一张张滚动效果实例代码
先来张效果图 [img]http://files.jb51.net/file_images/article/201311/20131123152549905.jpg[/img] 样式
[url=#]                <a href="#" title="2"><img src="images/2.jpg" /></a>                 <a href="#" title="3"><img src="images/3.jpg" /></a>                 <a href="#" title="4"><img src="images/4.jpg" /></a>                 <a href="#" title="5"><img src="images/5.jpg" /></a>                 <a href="#" title="6"><img src="images/6.jpg" /></a>                 <a href="#" title="7"><img src="images/7.jpg" /></a>                 <a href="#" title="8"><img src="images/8.jpg" /></a>             </div>             <div id="ScrollTwo"></div>         </div>     </div>     <div id="div_right">         <span id="btn_right" class="arrow next"></span>     </div> </div>
JS代码
    <script type="text/javascript"> var Scroll=(function(){     return function(){         var starScroll = document.getElementById("starScroll"),             ScrollOne = document.getElementById("ScrollOne"),             aCollection = ScrollOne.getElementsByTagName("a"),             aLength = aCollection.length,             ScrollTwo = document.getElementById("ScrollTwo"),             btn_left = document.getElementById("btn_left"),             btn_right = document.getElementById("btn_right");         var Width = 204,Current = 1,Rate = 7,TimeTimeout=1000,TimeInterval=10,MarginRight=9;         var SInterval=null,STimeout=null;         var flag=true;         function ScrollLeft(){             var CountWidth = Current*Width+Current*MarginRight,                 SLeftPara=starScroll.scrollLeft;             if(ScrollTwo.offsetWidth-SLeftPara==0){                 starScroll.scrollLeft=0;                 Current=0;             }             if(CountWidth-SLeftPara==0){                 Forward();             }             else{                 var v = Math.round((CountWidth-SLeftPara)/Rate);                 v = v<1 ? 1 : v;                 SetScrollLeft(SLeftPara+v);             }         }         function SetScrollLeft(scrollleft){             starScroll.scrollLeft=scrollleft;         }         function Init(){             flag=false;             SInterval=setInterval(ScrollLeft,TimeInterval);         }         function Forward(){             clearInterval(SInterval);             Current++;             flag=true;             STimeout = setTimeout(Init,TimeTimeout);         }         btn_right.onclick=function(){             if(flag){                 clearTimeout(STimeout);                 Init();             }         }         function ScrollRight(){             var CountWidth = Current*Width+Current*MarginRight,                 SLeftPara = starScroll.scrollLeft;             if(CountWidth-SLeftPara==0){                 Forward();             }             else{                 var v = Math.round((CountWidth-SLeftPara)/Rate);                 v = v>-1?-1:v;                 SetScrollLeft(SLeftPara+v);             }         }         btn_left.onclick=function(){             if(!flag){                 return;             }             flag=false;             clearTimeout(STimeout);             if(Current==1){                 SetScrollLeft(ScrollTwo.offsetWidth);                 Current=aLength+1;             }             Current-=2;             SInterval = setInterval(ScrollRight,TimeInterval);         }         if(aLength>0){             starScroll.scrollLeft=0;             ScrollTwo.innerHTML = ScrollOne.innerHTML;             STimeout = setTimeout(Init,TimeTimeout);         }     } })(); Scroll();     </script>
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