代碼示例
<html><head>
<script type="text/javascript">
function show_coords(event) {
x=event.screenX
y=event.screenY
alert("X coords: " + x + ", Y coords: " + y)
}
</script>
</head>
<body onmousedown="show_coords(event)">
<p>Click in the document. An alert box will alert the x and y coordinates of the cursor.</p>
</body>
</html>