重置表单时，将触发onreset 属性。您可以尝试运行以下代码以实现onreset属性-
<!DOCTYPE html>
<html>
<body>
<form onreset = "display()">
Student Name:<br>
<input type = "text" name = "sname">
<br>
Student Subject:<br>
<input type = "text" name = "ssubject">
<br>
<input type = "reset" value = "reset">
</form>
<script>
function display() {
alert("表格重置成功！");
}
</script>
</body>
</html>