<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>test2</title> </head> <body> <h3>Test JavaScript</h3> <P>点击显示抽奖</P> <button type="button" name="button" id="button" onclick="myFunction()">抽奖</button> <div id="demo"></div> <script type="text/javascript"> function myFunction(){ var carname = "你中奖了！VOlVO Car"; document.getElementById("demo").innerHTML = carname; } </script> </body> </html>
原文：http://www.cnblogs.com/blogofwyl/p/4541504.html