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