JavaScript 实现鼠标坐标实时获取：onmousemove 与 onmouseout 应用

HTML 结构与服务端脚本实现

<!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:199px;height:99px;border:1px solid" 
onmousemove="myFunction(event)" onmouseout="clearCoor()"></div>
<p>Mouse over the rectangle above, 
and get the coordinates of your mouse pointer.</p>
<p id="demo"></p>
</body>
</html>