1. example：
<!DOCTYPE HTML>
<html> <head></head> <body> <div id="chan">click me again!!</div> <script type="text/javascript" src="jquery.js"></script> <script> $(function(){ $("#chan").toggle(function(event){ $(event.target).css('color','red'); },function(event){ $(event.target).css('color','blue'); }); }); </script> </body></html>2.每当触发click事件就相互切换