JavaScript實現滾動欄效果的方法
這篇文章主要介紹了JavaScript實現滾動欄效果的方法,涉及javascript操作html元素實現滾動的相關技巧,非常具有實用價值,需要的朋友可以參考下
本文實例講述了JavaScript實現滾動欄效果的方法。分享給大家供大家參考。具體如下：
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 <!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <style> * { margin: 0; padding: 0; } #div1 ul{ position: absolute; left: 0px; top: 0px; } #div1 ul li img { width: 187px; height: 125px; } #div1 ul li{ float: left; width: 187px; height: 125px; list-style: none; } #div1{ width: 748px; height: 125px; position: relative; background-color: chartreuse; overflow: hidden; float: left; } #body{ width: 948px; height: 125px; margin: 100px auto; } #body #leftDiv{ float: left; width: 100px; height: 100px; } #body #rightDiv{ float: left; width: 100px; height: 100px; } #body #leftDiv button{ background-image: url("image/left.PNG"); width: 100px; height: 100px; } #body #leftDiv button img{ width: 100px; height: 100px; } #body #rightDiv button img{ width: 100px; height: 100px; } </style> <script> window.onload=function(){ var oDiv=document.getElementById('div1'); var oUl=oDiv.getElementsByTagName('ul')[0]; var oLi=oUl.getElementsByTagName('li'); var oLeft=document.getElementById('leftDiv'); var oright=document.getElementById('rightDiv'); oUl.innerHTML+=oUl.innerHTML; oUl.style.width=oLi[0].offsetWidth*oLi.length+'px'; var speed=-2; function move(){ if (oUl.offsetLeft<-oUl.offsetWidth/2){ oUl.style.left='0'; }else if(oUl.offsetLeft>0){ oUl.style.left=-oUl.offsetWidth/2+'px'; } oUl.style.left=oUl.offsetLeft+speed+'px'; }; var timer=setInterval(move,30); oLeft.onclick=function(){ speed=-2; }; oright.onclick= function () { speed=2; }; oUl.onmouseover=function(){ clearInterval(timer); }; oUl.onmouseout=function(){ timer=setInterval(move,30); }; } </script> </head> <body> <div id="body"> <div id="leftDiv"><button><img src="image/left.PNG"/></button></div> <div id="div1"> <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> </ul> </div> <div id="rightDiv"><button><img src="image/right.PNG"/></button></div> </div> </body> </html>希望本文所述對大家的javascript程序設計有所幫助。
