javascript 第27节 jQuery选择器
下面的html需要以下2个文件：
1.style.css
div,span,p {
width:140px;
height:140px;
margin:5px;
background:#aaa;
border:#000 1px solid;
float:left;
font-size:17px;
font-family:Verdana;
}
div.mini {
width:55px;
height:55px;
background-color: #aaa;
font-size:12px;
}
div.hide {
display:none;
}
2.main.js
$(function () {
function moveSpan() {
$("#mover").slideToggle(3000, moveSpan);
}
moveSpan();
})
3.html
<!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=utf-8" />
<title>基本选择器</title>
<link rel="stylesheet" type="text/css" href="style.css" />
<script type="text/javascript" src="jquery-1.7.2.js"></script>
<script type="text/javascript">
$(function () {
$("#but1").click(function() {
$("#one").css("background-color","#bfa");
});
$("#but2").click(function() {
$(".one").css("background-color","#bfa");
});
$("#but3").click(function() {
$("div").css("background-color","#bfa");
});
$("#but4").click(function() {
$("*").css("background-color","#bfa");
});
$("#but5").click(function() {
$("#one,.mini").css("background-color","#bfa");
});
})
</script>
</head>
<body>
<h3>基本选择器.</h3>
<!-- 控制按钮 -->
<input type="button" value="id是one的元素" id="but1" />
<input type="button" value="class是one的元素" id="but2" />
<input type="button" value="div元素" id="but3" />
<input type="button" value="所有元素" id="but4" />
<input type="button" value="id是one,class是mini" id="but5" />
<br /><br />
<!-- 测试的元素 -->
<div class="one" id="one" >
id为one,class为one的div
<div class="mini">class为mini</div>
</div>
<div class="one" id="two" title="test" >
id为two,class为one,title为test的div.
<div class="mini" title="other">class为mini,title为other</div>
<div class="mini" title="test">class为mini,title为test</div>
</div>
<div class="one">
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini"></div>
</div>
<div class="one">
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini" title="tesst">class为mini,title为tesst</div>
</div>
<div style="display:none;" class="none">
style的display为"none"的div
</div>
<div class="hide">class为"hide"的div</div>
<div>
包含input的type为"hidden"的div<input type="hidden" size="8"/>
</div>
<span id="mover">span元素.</span>
</body>
</html>
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4.html
<!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=utf-8" />
<title>基本过滤选择器</title>
<link rel="stylesheet" type="text/css" href="style.css" />
<script type="text/javascript" src="jquery-1.7.2.js"></script>
<script type="text/javascript" src="main.js"></script>
<script type="text/javascript">
$(function () {
$("#but1").click(function() {
$("div:first").css("background-color","#bfa");
});
$("#but2").click(function() {
$("div:last").css("background-color","#bfa");
});
$("#but3").click(function() {
$("div:not(#one)").css("background-color","#bfa");
});
$("#but4").click(function() {
$("div:eq(3)").css("background-color","#bfa");
});
$("#but5").click(function() {
$("div:odd").css("background-color","#bfa");
});
$("#but6").click(function() {
$("div:even").css("background-color","#bfa");
});
$("#but7").click(function() {
$(":header").css("background-color","#bfa");
});
$("#but8").click(function() {
$(":animated").css("background-color","#bfa");
});
})
</script>
</head>
<body>
<h3>基本过滤选择器.</h3>
<!-- 控制按钮 -->
<input type="button" value="第一个div元素" id="but1" />
<input type="button" value="最后一个div元素" id="but2" />
<input type="button" value="不包含id=one的div元素" id="but3" />
<input type="button" value="索引是3的div元素" id="but4" />
<input type="button" value="索引是奇数div元素" id="but5" />
<input type="button" value="索引是偶数div元素" id="but6" />
<input type="button" value="标题元素" id="but7" />
<input type="button" value="动画元素" id="but8" />
<br /><br />
<!-- 测试的元素 -->
<div class="one" id="one" >
id为one,class为one的div
<div class="mini">class为mini</div>
</div>
<div class="one" id="two" title="test" >
id为two,class为one,title为test的div.
<div class="mini" title="other">class为mini,title为other</div>
<div class="mini" title="test">class为mini,title为test</div>
</div>
<div class="one">
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini"></div>
</div>
<div class="one">
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini" title="tesst">class为mini,title为tesst</div>
</div>
<div style="display:none;" class="none">
style的display为"none"的div
</div>
<div class="hide">class为"hide"的div</div>
<div>
包含input的type为"hidden"的div<input type="hidden" size="8"/>
</div>
<span id="mover">span元素.</span>
</body>
</html>
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5.html
<!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=utf-8" />
<title>层次选择器</title>
<link rel="stylesheet" type="text/css" href="style.css" />
<script type="text/javascript" src="jquery-1.7.2.js"></script>
<script type="text/javascript">
$(function () {
$("#but1").click(function() {
$("body div").css("background-color","#bfa");
});
$("#but2").click(function() {
$("body>div").css("background-color","#bfa");
});
$("#but3").click(function() {
$("#one + div").css("background-color","#bfa");
});
$("#but4").click(function() {
$("#one ~ div").css("background-color","#bfa");
});
})
</script>
</head>
<body>
<h3>层次选择器.</h3>
<!-- 控制按钮 -->
<input type="button" value="body下div元素" id="but1" />
<input type="button" value="body下div子元素" id="but2" />
<input type="button" value="id是one的后div元素" id="but3" />
<input type="button" value="id是one的后所有div元素" id="but4" />
<br /><br />
<!-- 测试的元素 -->
<div class="one" id="one" >
id为one,class为one的div
<div class="mini">class为mini</div>
</div>
<div class="one" id="two" title="test" >
id为two,class为one,title为test的div.
<div class="mini" title="other">class为mini,title为other</div>
<div class="mini" title="test">class为mini,title为test</div>
</div>
<div class="one">
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini"></div>
</div>
<div class="one">
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini">class为mini</div>
<div class="mini" title="tesst">class为mini,title为tesst</div>
</div>
<div style="display:none;" class="none">
style的display为"none"的div
</div>
<div class="hide">class为"hide"的div</div>
<div>
包含input的type为"hidden"的div<input type="hidden" size="8"/>
</div>
<span id="mover">span元素.</span>
</body>
</html>
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