案例：html案例     状态：可编辑再运行    进入竖版
 运行结果　
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<!DOCTYPE HTML>
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<html>
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<head>
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<style type="text/css">
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body
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{
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font-size:70%;
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font-family:verdana,helvetica,arial,sans-serif;
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}
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</style>
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​
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<script type="text/javascript">
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function cnvs_getCoordinates(e)
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{
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x=e.clientX;
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y=e.clientY;
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document.getElementById("xycoordinates").innerHTML="Coordinates: (" + x + "," + y + ")";
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}
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function cnvs_clearCoordinates()
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{
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document.getElementById("xycoordinates").innerHTML="";
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}
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</script>
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</head>
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​
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<body style="margin:0px;">
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​
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<p>把鼠标悬停在下面的矩形上可以看到坐标：</p>
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​
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<div id="coordiv" style="float:left;width:199px;height:99px;border:1px solid #c3c3c3" onmousemove="cnvs_getCoordinates(event)" onmouseout="cnvs_clearCoordinates()"></div>
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<br />
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<br />
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<br />
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<div id="xycoordinates"></div>
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</body>
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</html>
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​