jquery 调用 click 事件 的 三种 方式
第一种方式：
<!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" /><script type="text/javascript" src="js/jquery-1.6.1.min.js"></script><script type="text/javascript" src="js/jquery.validate.js"></script><script type="text/javascript" src="js/jquery.metadata.js"></script><script type="text/javascript" src="js/messages_zh.js"></script><style type="text/css">#frm label.error {color: Red;}</style></head><script type="text/javascript">$(document).ready(function(){ $("#clickme").click(function(){ alert("Hello World click"); }); $('#clickmebind').bind("click", function(){ alert("Hello World bind"); });$('#clickmeon').on('click', function(){ alert("Hello World on");});});</script><body><label></label><form id="frm" name="frm" method="post" action=""><label>用 户 名: <input type="text" name="username" id="username" /></label> <p> <label>邮 编 :<label></label></label> <label> <input type="text" name="postcode" id="postcode" /> <br /> </label> </p> <p><label>数 字 : <input type="text" name="number" id="number" /> </label> <br /><label>身份证号： <input type="text" name="identifier" id="identifier" /> </label> <label> <input type="button" name="clickme" id="clickme" value="click me" /> </label> <label> <input type="button" name="clickmebind" id="clickmebind" value="clickme_bind" /> </label> <label> <input type="button" name="clickmeon" id="clickmeon" value="clickme_on" /> </label> </p></form></body></html>