flash透明的js

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Flash Opacity Control</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<object id="myFlash" type="application/x-shockwave-flash" data="myFlash.swf" width="550" height="400">
    <param name="movie" value="myFlash.swf" />
    <param name="quality" value="high" />
</object>
<button onclick="setOpacity(0.5)">Set Opacity to 50%</button>
<button onclick="setOpacity(1)">Set Opacity to 100%</button>
<script src="script.js"></script>
</body>
</html>

function setOpacity(opacity) {
    var flashObject = document.getElementById('myFlash');
    if (flashObject && flashObject.SetVariable) {
        flashObject.SetVariable('/:/opacity', opacity);
    } else {
        console.error('Flash object not found or does not support SetVariable.');
    }
}