onwheel?當鼠標滾輪在元素上向上或向下滾動時觸發屬性。您可以嘗試運行以下代碼來實現onwheel?屬性 –
示例
<!DOCTYPE html>
<html>
<body>
<h3 id = "myid" onwheel = "mouseWheel()">
This is demo heading.
</h3>
<p>Click above and use mouse wheel to change the heading color.</p>
<script>
function mouseWheel() {
document.getElementById("myid").style.color = "red";
}
</script>
</body>
</html>
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