1 <html> 2 <head> 3 <script type="text/javascript" src="jquery-1.11.2.js"></script> 4 </head> 5 <body> 6 <input id="btn" type="button" value="button" /> 7 <script type="text/javascript"> 8 $("#btn").click(function(){ 9 alert(‘button click!‘); 10 }); 11 </script> 12 </body> 13 </html>
原文：http://www.cnblogs.com/aoun/p/4436015.html