代码示例：（标识：eg_js_events_onmousemove）
<!DOCTYPE html>
<html>
<head>
<script>
function myFunction(e) {
x = e.clientX;
y = e.clientY;
coor = "Coordinates: (" + x + "," + y + ")";
document.getElementById("demo").innerHTML = coor
}
function clearCoor() {
document.getElementById("demo").innerHTML = "";
}
</script>
</head>
<body style="margin:0px;">
<div id="coordiv" style="width:300px;height:200px;border:1px solid" onmousemove="myFunction(event)" onmouseout="clearCoor()"></div>
<p>将鼠标悬停在上方的矩形上，然后获取鼠标指针的坐标。</p>
<p id="demo"></p>
</body>
</html>
