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  • js自动更换图片代码(收藏)

    <!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" lang="gb2312">
    <head>
    <title>JS图片切换 ::</title>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
    <meta name="generator" content="editplus" />
    <meta name="author" content="eLore" />
    <meta name="keywords" content="" />
    <meta name="description" content="" />
    <style type="text/css">
    * { margin:0; padding:0; }
    body {
     margin:0;
     color:#88c; background:#333;
    }
    img { margin:0; padding:0; border:0; }
    #js_F {
     position:relative;
     top:10px; left:10px;
     overflow:hidden;
     270px; height:185px;
     background:#33c;
    }
    #js_F img{
     position:absolute;
     top:0; left:0;
     270px; height:185px;
    }
    </style>
    </head>
    <body>
    <div id="js_F"></div>
    <script type="text/javascript">
    <!--///*--><![CDATA[/*><!--*/
    var js_F = document.getElementById("js_F");
    var imgList = ["img/1.jpg", "img/2.jpg", "img/3.jpg", "img/4.jpg" ];
    var imgTemp = new Array();
    for (i=0; i<imgList.length; i++){
     imgTemp[i] = new Image();
     imgTemp[i].src = imgList[i];
    }
    var imgs = new Array();
    var imgID = 0, nextImgID, proveImgID;
    var tf = true; //图片移动方向标志
    var speed1 = 10; speed2 = 3000; //速度
    function imgInit(){
     var content = '';
     for (i=0; i<imgList.length; i++){
      content += '<img src="' + imgList[i] + '" style="left:0;" />\n';
     }
     js_F.innerHTML = content;
     imgs = js_F.getElementsByTagName('img');
     imgs[0].style.zIndex = 20;
     imgs[1].style.zIndex = 15;
    }
    function imgChange(){
     if ((imgID+1)<imgList.length){
      nextImgID = imgID + 1;
     } else if (imgID<imgList.length) {
      nextImgID = 0;
     } else {
      imgID = 0;
      nextImgID = imgID + 1;
     }
     imgs[imgID].style.zIndex = 20;
     imgs[nextImgID].style.zIndex = 15;
     setTimeout('imgShow()',speed2);
    }
    function imgShow(){
     if (tf){ //imgID向左边移动2/3,nextImgID向右边1/3
      if (parseInt(imgs[imgID].style.left)>-180){
       imgs[imgID].style.left = (parseInt(imgs[imgID].style.left)-10) + 'px';
       imgs[nextImgID].style.left = (parseInt(imgs[nextImgID].style.left)+5) + 'px';
       setTimeout('imgShow()',speed1);
      } else {
       tf = !tf;
       imgs[imgID].style.zIndex = 15;
       imgs[nextImgID].style.zIndex = 20;
       setTimeout('imgShow()',speed1);
      }
     } else {
      if (parseInt(imgs[imgID].style.left)<0){
       imgs[imgID].style.left = (parseInt(imgs[imgID].style.left)+10) + 'px';
       imgs[nextImgID].style.left = (parseInt(imgs[nextImgID].style.left)-5) + 'px';
       setTimeout('imgShow()',speed1);
      } else {
       imgs[imgID].style.zIndex = 10;
       tf = !tf;
       imgID++;
       imgChange();
      }
     }
    }
    imgInit();
    imgChange();
    /*]]>*///-->
    </script>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/ly312/p/1538569.html
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