twitter-bootstrap – 默认情况下,Bootstrap折叠面板关闭

我使用一个引导面板,我添加了一个跨度可点击图标：加上当面板主体打开时减去面板主体关闭时,我现在的问题是如何将其设置为默认关闭(加上图标默认显示当我点击它面板体将打开)

在我的代码之上做这件事,在此先感谢您的帮助.

<html>

<head>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">

<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<script>
$(document).on('click','.panel-heading span.clickable',function (e) {
    var $this = $(this);
    if (!$this.hasClass('panel-collapsed')) {

        $this.parents('.panel').find('.panel-body').slideUp();
        $this.addClass('panel-collapsed');
        $this.find('i').removeClass('glyphicon-minus').addClass('glyphicon-plus');
    } else {
    console.log($this);

        $this.parents('.panel').find('.panel-body').slideDown();
        $this.removeClass('panel-collapsed');
        $this.find('i').removeClass('glyphicon-plus').addClass('glyphicon-minus');
    }
});
</script>
<style>

.clickable
{
    cursor: pointer;
}

.clickable .glyphicon
{
    background: rgba(0,0.15);
    display: inline-block;
    padding: 6px 12px;
    border-radius: 4px
}

.panel-heading span
{
    margin-top: -23px;
    font-size: 15px;
    margin-right: -9px;
}
</style>
</head>
 <body>
 <div class="container">
    <div class="row">
        <div class="col-md-6">
            <div class="panel panel-primary">
                <div class="panel-heading">
                    <h3 class="panel-title">
                        Panel 1</h3>
                    <span class="pull-right clickable panel-collapsed in"><i class="glyphicon glyphicon-plus"></i></span>
                </div>
                <div class="panel-body">
                    Panel content</div>
            </div>
        </div>

        </div>
    </div>
 </body>

</html>

解决方法

你只需要改变这个：

<div class="panel-body">

对此：

<div class="panel-body"  style="display:none;">

并通过slideDown()更改slideUp(),并通过slideUp()更改slideDown().

也改变这个：

<span class="pull-right clickable collapse in"><i class="glyphicon glyphicon-plus"></i></span>

对此：

<span class="pull-right clickable collapse in"><i class="glyphicon glyphicon-minus"></i></span>

一切都应该像你现在在你的问题中提到的那样工作.

这是一个JSFiddle链接：Try It

twitter-bootstrap – 默认情况下,Bootstrap折叠面板关闭

解决方法

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