jQuery属性操作、循环

1.html()取出或设置html内容

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2.prop（）取出或设置某个属性的值

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>属性操作</title>
<script type="text/javascript" src="../jQuery库/jquery-3.3.1.min.js"></script>
<script type="text/javascript">

$(function(){
    var $a = $('.link');
    var $img = $('#img');
    /*取出某个属性*/
    console.log($a.prop('class'))
    /*绝对地址*/
    console.log($img.prop('src'));
    /*设置属性*/
    $a.prop({'href':'http://www.baidu.com','title':'百度网'});
    /*在标签内写内容*/
    $a.html('<em>3</em>');
})
</script>

</head>

<body>

<a href="#" class="link">链接</a>
<img src="../../js/images/小林子1.jpg" alt="nanzi" id="img">

</body>
</html>

例子二：手风琴

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>手风琴</title>
<script type="text/javascript" src="../jQuery库/jquery-3.3.1.min.js"></script>
<script typt="text/javascript">

$(function(){
    var $li = $('.accordion li');
    $li.click(function(){
        /*点击的li,左的位置*/
        $(this).animate({'left':21*$(this).index()});
        /*点击的li前面元素也跟着左移*/
        $(this).prevAll().each(function(){
            $(this).animate({'left':21*$(this).index()});
        });
        /*点击的li后面的元素左的位置*/
        $(this).nextAll().each(function(){
            $(this).animate({'left':497-21*(5-$(this).index())});
        })
    })
})
</script>

.accordion{
    width: 497px;
    height: 506px;
    float: left;
    overflow: hidden;
    position: relative;
    left: 50%;
    margin-left: -250px;

}
.accordion ul{
    list-style: none;
    padding: 0;
}
.accordion ul li{
    width: 413px;
    height: 506px;
    display: inline-block;
    float: left;
}
.accordion li span{
    display: inline-block;
    width: 20px;
    height: 506px;
    border-bottom: 1px solid #fff;
}
.accordion li img{
    display: inline-block;

}
/*位置一*/
.accordion .pick1{
    position: absolute;
    top: 0;
    background-color: #EF4B4E;
}
.accordion .pick1 span{
    position: absolute;
    top: 0;
}
.accordion .pick1 img{
    position: absolute;
    top: 0;
    left: 21px;
}
/*位置二*/
.accordion .pick2{
    position: absolute;
    top: 0;
    left: 413px;
    background-color: #EC3AF1;
}
.accordion .pick2 span{
    position: absolute;
    top: 0;
}
.accordion .pick2 img{
    position: absolute;
    left: 21px;
}
/*位置三*/
.accordion .pick3{
    position: absolute;
    top: 0;
    left: 434px;
    background-color: #4866F5;
}
.accordion .pick3 span{
    position: absolute;
    top: 0;
}
.accordion .pick3 img{
    position: absolute;
    left: 21px;
}
/*位置四*/
.accordion .pick4{
    position: absolute;
    top: 0;
    left: 455px;
    background-color: #4DC1F1;
}
.accordion .pick4 span{
    position: absolute;
    top: 0;

}
.accordion .pick4 img{
    position: absolute;
    left: 21px;
}
/*位置五*/
.accordion .pick5{
    position: absolute;
    top: 0;
    left: 476px;
    background-color: #4CF750;
}
.accordion .pick5 span{
    position: absolute;
    top: 0;

}
.accordion .pick5 img{
    position: absolute;
    left: 21px;
}

</style>

</head>

<body>

<div class="accordion">
    <ul>
        <li class="pick1">
            <span>小南子01</span><img src="../../js/images/小林子1.jpg" alt="nanzi">
        </li>
        <li class="pick2">
            <span>小南子02</span><img src="../../js/images/小林子2.png" alt="nanzi">
        </li>
        <li class="pick3">
            <span>小南子03</span><img src="../../js/images/小林子3.png" alt="nanzi">
        </li>
        <li class="pick4">
            <span>小南子04</span><img src="../../js/images/小林子4.png" alt="nanzi">
        </li>
        <li class="pick5">
            <span>小南子05</span><img src="../../js/images/小林子5.png" alt="nanzi">
        </li>
    </ul>
</div>

</body>
</html>

jQuery属性操作、循环

3.jQuery循环

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>循环</title>
<script type="text/javascript" src="../jQuery库/jquery-3.3.1.min.js"></script>
<script type="text/javascript">

$(function(a){
    var $li = $('ul li');
    /*循环each，获取每一个li*/
    $li.each(function(){
        if($(this).index()%2==0){
            $(this).css({'backgroundColor':'gold'});
        }
    })
})
</script>

</head>

<body>

<ul>
    <li>1</li>
    <li>2</li>
    <li>3</li>
    <li>4</li>
    <li>5</li>
    <li>6</li>
</ul>

</body>
</html>

jQuery属性操作、循环

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