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Architect_Programmer_Code Agriculture Network»Architect › Front-end design & web › Html/CSS/JavaScript › Use JS to automatically change the background image of the homepage
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[JavaScript] Use JS to automatically change the background image of the homepage

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Posted on 12/23/2015 3:39:40 PM | | |
  1. var curIndex = 0;
  2.         //时间间隔 单位毫秒
  3.         var timeInterval = 1000;
  4.         var arr = new Array();
  5.         arr[0] = "/Content/images/bg/bg-1.jpg";
  6.         arr[1] = "/Content/images/bg/bg-2.jpg";
  7.         arr[2] = "/Content/images/bg/bg-3.jpg";
  8.         arr[3] = "/Content/images/bg/bg-4.jpg";
  9.         arr[4] = "/Content/images/bg/bg-5.jpg";
  10.         arr[5] = "/Content/images/bg/bg-6.jpg";
  11.         setInterval(changeImg, timeInterval);
  12.         function changeImg() {
  13.             var obj = document.getElementById("bgimg");
  14.             if (curIndex == arr.length - 1) {
  15.                 curIndex = 0;
  16.             }
  17.             else {
  18.                 curIndex += 1;
  19.             }
  20.             obj.src = arr[curIndex];
  21.         }
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