我输入的代码可以工作,但是我想使用以前创建的箭头类,而不是以这种方式li.parent
使用$('.Arrow').click(function ()...
,但是它对我不起作用,可以实现吗?
$('ul#nav li.parent').before('<a class="arrow" href="#"></a>');
$(document).ready(function() {
$('.parent').click(function() {
$('.parent').not(this).find('.sub-nav.visible').removeClass('visible');
$('.sub-nav', this).toggleClass('visible'); //find .sub-nav of clicked .parent
});
});
#nav ul.sub-nav {
display: none;
}
#nav ul.visible {
display: block;
}
.arrow {
width: 10px;
height: 10px;
background: red;
display: inline-block;
float: right;
position: relative;
right: 50%;
margin-top: 5px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul id="nav">
<li class="parent">Home
<ul class="sub-nav">
<li>One</li>
<li>Two</li>
<li>Three</li>
</ul>
</li>
<li class="parent">About
<ul class="sub-nav">
<li>First</li>
<li>Second</li>
<li>Third</li>
</ul>
</li>
<li class="parent">Contact</li>
</ul>
答案 0 :(得分:0)
$('.sub-nav').before('<a class="arrow" href="#"></a>');
$(document).ready(function() {
$('.arrow').click(function() {
var list = $(this).parent()
var subList = $(list).children('.sub-nav')
if(!$(subList).hasClass('visible')) {
$('.parent').not(this).find('.sub-nav.visible').removeClass('visible');
}
$(subList).toggleClass('visible');
});
});
#nav ul.sub-nav {
display: none;
}
#nav ul.visible {
display: block;
}
.arrow {
width: 10px;
height: 10px;
background: red;
display: inline-block;
float: right;
position: relative;
right: 50%;
margin-top: 5px;
cursor: pointer;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul id="nav">
<li class="parent">Home
<ul class="sub-nav">
<li>One</li>
<li>Two</li>
<li>Three</li>
</ul>
</li>
<li class="parent">About
<ul class="sub-nav">
<li>First</li>
<li>Second</li>
<li>Third</li>
</ul>
</li>
<li class="parent">Contact</li>
<li class="parent">Help
<ul class="sub-nav">
<li>First</li>
<li>Second</li>
<li>Third</li>
</ul>
</li>
<li class="parent">Argon
<ul class="sub-nav">
<li>First</li>
<li>Second</li>
<li>Third</li>
</ul>
</li>
</ul>
稍微整理一下代码库,但这应该可以为您提供所需的东西。
编辑
在JS文件中添加了if语句,该语句将处理重复单击列表的操作,以切换列表。