<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> <script> function getScreen(e) { var x = e.screenX - e.clientX; var y = e.screenY - e.clientY; alert("X坐标：" + x + ",Y坐标：" + y); } </script> </head> <body> <input type="button" onclick="getScreen(event)" value="测试" /> </body> </html>