Question

JQuery里面的几种选择器 查找满足条件的元素$(#控件ID)

Answer 1

<script src ="Jq/jquery-1.4.2.js" type ="text/javascript" </script
<script type ="text/javascript"
$(function (){
$("p").click(function (){alert ("小P");})});</script</head<body<input type="button" value ="PlayGame" id="btnClick" /
<p第一个</p
<p第二个</p</body说明：对所有<P标签点击都有弹出对话框的提示
第二种：CSS选择器代码如下:<head<title</title
<script src ="Jq/jquery-1.4.2.js" type ="text/javascript" </script
<script type ="text/javascript"
$(function (){
$(".warning").click(function (){alert("这是警告信息");});});</script
<style type="text/css"
.warning{background-color :Yellow ;color :Red ;}</style</head<body<p没有警告</p
<div class ="warning " 请带好小孩</div
<p class ="warning "再次警告你</p
<input class ="warning " type ="button" value ="别点啊" /</body说明：对所有CSS样式为：.warning点击都有弹出对话框的提示
第三种：多条件选择器代码如下:<head<title</title
<script src ="Jq/jquery-1.4.2.js"</script
<script type ="text/javascript"
$(function (){
$(".docc,p,#txt1").click(function (){alert ("不要上当啊");})})</script
<style type="text/css"
.docc{background-color :Fuchsia ;color :Olive ;}</style</head<body<p电脑热卖</p
<input type ="text" id="txt1" /