返回鼠标在固定区域内的坐标和返回你按下的数字

 //返回鼠标在固定区域内的坐标
        <div style="width:300px; height:300px; background-color:Red" id="mouseEvent"></div>
        <script language="javascript" type="text/javascript">
            function onMouseDown(e)
            {
                $get("displayMouseEvent").innerHTML = String.format(
                    "altKey: {0} <br />" +
                    "ctrlKey: {1} <br />" +
                    "shitKey: {2} <br />" +
                    "clientX & Y: ({3}, {4}) <br />" +
                    "screenX & Y: ({5}, {6}) <br />" +
                    "offsetX & Y: ({7}, {8}) <br />" +
                    "button: {9}",
                    e.altKey, e.ctrlKey, e.shiftKey,
                    e.clientX, e.clientY,
                    e.screenX, e.screenY,
                    e.offsetX, e.offsetY,
                    Sys.UI.MouseButton.toString(e.button));
            }
        </script>

//返回你按下的数字

 <script language="javascript" type="text/javascript">
            function onKeyDown(e)
            {
                var c = Sys.UI.Key.toString(e.keyCode);
                if (!c)
                {
                    c = String.fromCharCode(e.keyCode);
                }
               
                $get("displayKeyEvent").innerHTML = String.format("You pressed {0}", c);
            }
              
            $addHandler($get("textBox"), "keydown", onKeyDown);
        </script>