源代码:
<!DOCTYPE html> <html> <head> <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ var x=0; $("p").click(function(event){ $("p").animate({fontSize:"+=5px"}); x++; if (x>=2) { $(this).unbind(event); } }); }); </script> </head> <body> <p style="font-size:20px;">Click this p element to increase its size. The size can only be increased 2 times.</p> </body> </html>
运行结果：