15-27.htm

来自「有关JAVASCRIPT的源代码教程」· HTM 代码 · 共 36 行

HTM
36
字号
    <html> <head>
    <script language=JavaScript type="text/javascript">
    var paraOneLeft = 100;
    var paraTwoLeft = 400;
    var switchDirection = false;
    function window_onload(){
      window.setInterval("moveParas()",50);
    }
    function moveParas(){
      var paraOne = document.getElementById("paraOneid");
      var paraTwo = document.getElementById("paraTwoid");
      if (switchDirection == false){
         paraOneLeft++;
         paraTwoLeft--;
         if (paraOneLeft == 400){
            switchDirection = true;
         }
      }
      else{
         paraOneLeft--;
         paraTwoLeft++;
         if (paraOneLeft == 100){
            switchDirection = false;
         }
      }
      paraOne.style.left = paraOneLeft + 'px';
      paraTwo.style.left = paraTwoLeft + 'px';
    }
    </script>
    </head>
    <body language=JavaScript type="text/javascript" onload="return window_onload()">
    <P STYLE="position:absolute;left:100px;top:30px" ID="paraOneid">葡萄美酒夜光杯</P>
    <P STYLE="position:absolute;left:400px;top:10px" ID="paraTwoid">欲饮琵琶马上催</P>
    </body>
    </html>

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