<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>将鼠标悬停在上面的矩形上，并获取鼠标指针的坐标。</p><p id="demo"></p></body></html>