js获取鼠标位置

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Get Mouse Position</title>
<style>
    #mousePosition {
        position: absolute;
        top: 100px;
        left: 200px;
        width: 50%;
        height: 50%;
        background: #ff0;
    }
</style>
</head>
<body>

<div id="mousePosition" >Mouse Position: (0, 0)</div>

<script>
  var mousePositionDiv = document.getElementById('mousePosition');
  mousePositionDiv.addEventListener('mousemove', function(event) {
	let msg = '';
    msg += '所在区块位置: (' + event.offsetX + "," +  event.offsetY + ')<br/>';
	msg += '可视区域的坐标(滚动条之外的部分忽略掉): (' + event.clientX + ',' +  event.clientY + ')<br/>';
	msg += '所在浏览器位置(包括上面浏览器工具栏标签页): (' + event.screenX + ',' +  event.screenY + ')\r\n';

    mousePositionDiv.innerHTML = msg;
  });
</script>

</body>
</html>
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