javascript 评分控件(鼠标滑动)

最新推荐文章于 2021-06-25 15:38:31 发布

永远爱好写程序

最新推荐文章于 2021-06-25 15:38:31 发布

阅读量718

点赞数

CC 4.0 BY-SA版权

分类专栏： Javascript

本文链接：https://blog.youkuaiyun.com/limlimlim/article/details/8438801

Javascript 专栏收录该内容

56 篇文章

订阅专栏

本文介绍了一种使用 JavaScript 实现的星级评分效果。通过监听鼠标悬停事件改变星号图标，实现直观的用户交互体验。当鼠标移出表格时，图标会自动恢复到未选中状态。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

<html xmlns=" http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <script type="text/javascript">
        function ArrayIndexof(arr, inElement) {
            for (var i = 0; i < arr.length; i++) {
                if (arr[i] == inElement) {
                    return i;
                }
            }
            return -1;
        }
        function GetTDS() {
            var tbl = document.getElementById("tblMain");
            var tds = tbl.getElementsByTagName("td");
            return tds;
        }
        function iniEvent() {
            var tds = GetTDS();
            for (var i = 0; i < tds.length; i++) {
                td = tds[i];
                td.onmouseover = TdOnMouseOver;
            }
            var tbl = document.getElementById("tblMain");
            tbl.onmouseout = TableMouseOut;
        }
        function SetRating(tdTmp) {
            var tds = GetTDS();
            var index = ArrayIndexof(tds, tdTmp);
            for (var i = 0; i <= index; i++) {
                td = tds[i];
                td.innerHTML = "★";
            }
            for (var i = index + 1; i < tds.length; i++) {
                td = tds[i];
                td.innerHTML = "☆";
            }
        }
        function TdOnMouseOver() {
            SetRating(this);
        }
        //鼠标离开表格后自动清除
        function TableMouseOut() {
            var tds = GetTDS();
            for (var i = 0; i < tds.length; i++) {
                td = tds[i];
                td.innerHTML = "☆";
            }
        }
    </script>
</head>
<body onload="iniEvent()">
    <table id="tblMain" border="1">
        <tr>
            <td>☆</td>
            <td>☆</td>
            <td>☆</td>
            <td>☆</td>
            <td>☆</td>
        </tr>
    </table>
</body>
</html>