学点JS实例-文字滑动（4）_js控制字体大小滑块怎么用-优快云博客

本文链接：https://blog.youkuaiyun.com/a110658684/article/details/52738097

<html>
<head>
<script type="text/javascript">
function $(id) {
return document.getElementById(id);             //获取控件的ID
}
function marquee(time, oDiv, oLtd, oRtd)        //制作一个marquee类
{
    /*
    time 值越大速度越慢
    oDiv最外层div
    oLtd左边的td
    oRtd右边的td
    */
    var timer, width = oLtd.offsetWidth;
    function move() {
        if (oDiv.scrollLeft >= width)           //当滚动条移动到最后时，重新开始
        oDiv.scrollLeft = 0;
        else
        oDiv.scrollLeft ++;                     //一直滚动
    }

    oRtd.innerHTML = oLtd.innerHTML;           //左侧内容转移动到右侧
    oDiv.style.overflow = "hidden";             //隐藏最外层div
    oRtd.style.width = oLtd.offsetWidth;        //右侧td的宽度
    oDiv.onmouseover = function () {            //鼠标移动过来的事件
        window.clearInterval(timer);            //清空定时器-停止滚动
    };
oDiv.onmouseout = function () {
    timer = window.setInterval(move, time);     //鼠标移走便开始滚动
    };
    timer = window.setInterval(move, time);     //开始滚动
};

window.onload = function () {
new marquee(25, $("myDiv"), $("myTd1"), $("myTd2"));
}
</script>
</head>
<body>
<div id="myDiv" style="border:#CCCCCC 1px dashed; width:300px;"><!--设置显示的宽度-->
  <table cellspacing="0" cellpadding="0">
    <tbody>
      <tr>
        <td id="myTd1">
          <table width="342" cellpadding="0" cellspacing="0"><!--注意这里的宽度必须设置，并且要设置为具体值-->
            <tr align="center">
              <td>左边</td>
              <td>右边</td>
              <td>左边</td>
              <td>右边</td>
            </tr>
          </table>
        </td>
        <td id="myTd2"></td>
      </tr>
    </tbody>
  </table>
</div>
</body>
</html>