Uncaught TypeError: Cannot read property 'alpha' of undefined 报错解决

最新推荐文章于 2024-08-28 15:07:44 发布

lesileqin

最新推荐文章于 2024-08-28 15:07:44 发布

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先附上报错的代码：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>动态改变图片的焦点</title>
</head>
<body>
<script type="text/javascript">
function visible(cursor,i) {
    if(i==0)
        cursor.filters.alpha.opacity=100;
    else
        cursor.filters.alpha.opacity=50;
}
</script>
<table border="0" cellspacing="0" cellpadding="0">
    <tr>
        <td align="center">
            <img src="images/3.jpg" border="0" style="filter:alpha(opacity=100)" onMouseOver="visible(this,1)" onMouseOut="visible(this,0)" width="148" HEIGHT="148">
        </td>
    </tr>
</table>
</body>
</html>