我正在使用弹出菜单，将鼠标悬停在弹出菜单上之前，该菜单应保持可见状态，直到单击下拉菜单外部的某个位置为止。我在下面有标记，还有一些jQuery函数可以用来测试该理论，但无法正常工作。整个需求是，当您将鼠标悬停在父菜单上并且出现主下拉菜单时，它将一直保持该状态，直到您在下拉区域之外单击或转到另一个类别为止。封装的子菜单也应如此。感谢您的协助。
<ul class="mainDropDown">
<li class="dropdown-submenu" role="menu">
<a tabindex="1" href="searchResults.html" id="shoppingMenuLabel">
<div class="fa fa-tags"> </div>Shopping
</a>
<ul class="dropdown-menu">
<li class="dropdown-submenu" role="menu">
<a tabindex="1" href="searchResults.html" id="appleStoreMenuLabel">
Apple Store</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">iPods </a></li>
<li><a href="searchResults.html">iPod Accessories </a></li>
<li><a href="searchResults.html">Watches</a></li>
<li><a href="searchResults.html">Mac Systems</a></li>
<li><a href="searchResults.html">iPads</a></li>
<li><a href="searchResults.html">Shop All Apple Store</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu">
<a tabindex="1" href="searchResults.html" id="babyMenuLabel">
Baby</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Clothing</a></li>
<li><a href="searchResults.html">Feeding</a></li>
<li><a href="searchResults.html">Gear </a></li>
<li><a href="searchResults.html">Maternity</a></li>
<li><a href="searchResults.html">Nursery </a></li>
<li><a href="searchResults.html">Care & Safety</a></li>
<li><a href="searchResults.html">Shop All Baby</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu">
<a tabindex="1" href="searchResults.html" id="booksMenuLabel">
Books</a>
<ul class="dropdown-menu dropup">
<li><a href="searchResults.html">Autobiography & Biography</a></li>
<li><a href="searchResults.html">Cooking </a></li>
<li><a href="searchResults.html">Health & Fitness</a></li>
<li><a href="searchResults.html">History</a></li>
<li><a href="searchResults.html">Humor </a></li>
<li><a href="searchResults.html">Juvenile NonFiction</a></li>
<li><a href="searchResults.html">Juvenile Fiction</a></li>
<li><a href="searchResults.html">Religion</a></li>
<li><a href="searchResults.html">Social Science</a></li>
<li><a href="searchResults.html">Sports & Recreation</a></li>
<li><a href="searchResults.html">Shop All Books</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu">
<a tabindex="1" href="searchResults.html" id="electronicsMenuLabel">
Electronics</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu" id="fashionAccMenuLabel">
<a tabindex="1" href="searchResults.html">
Fashion Accessories</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu" id="giftBasketsMenuLabel">
<a tabindex="1" href="searchResults.html">
Gift Baskets</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu" id="homeGardenMenuLabel">
<a tabindex="1" href="searchResults.html">
Home & Garden</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu" id="jewelryMenuLabel">
<a tabindex="1" href="searchResults.html">
Jewelry</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu" id="moviesMenuLabel">
<a tabindex="1" href="searchResults.html">
Movies</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu" id="musicMenuLabel">
<a tabindex="1" href="searchResults.html">
Music</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu">
<a tabindex="1" href="searchResults.html" id="officeProductsMenuLabel">
Office Products</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
<li class="dropdown-submenu" role="menu" id="onSaleNowMenuLabel">
<a tabindex="1" href="searchResults.html">
On Sale Now!</a>
<ul class="dropdown-menu">
<li><a href="searchResults.html">Link 1</a></li>
<li><a href="searchResults.html">Link 2 </a></li>
<li><a href="searchResults.html">Link 3</a></li>
</ul>
</li>
</ul>
</li>
</ul>
jQuery
var timer;
$(".dropdown-submenu").on("mouseover", function () {
clearTimeout(timer);
openSubmenu();
}).on("mouseleave", function () {
timer = setTimeout(
closeSubmenu, 3000);
});
function openSubmenu() {
$(".dropdown-menu").addClass("open");
}
function closeSubmenu() {
$(".dropdown-menu").removeClass("open");
}
CSS：
<style>
.dropdown-submenu {
position: initial;
}
ul.dropdown-menu li a{
transition-timing-function: ease-in-out;
-moz-transition-timing-function: ease-in-out;
-o-transition-timing-function: ease-in-out;
-webkit-transition-timing-function: ease-in-out;
transition-duration: 5s;
}
ul.dropdown-menu li.dropdown-submenu{
transition-timing-function: ease-in-out;
-moz-transition-timing-function: ease-in-out;
-o-transition-timing-function: ease-in-out;
-webkit-transition-timing-function: ease-in-out;
transition-duration: 5s;
}
li.dropdown-submenu a ul.dropdown-menu{
transition: ease-out;
}
.dropdown-content a:hover{
background: transparent;
}
.dropdown-submenu>.dropdown-menu {
top: 0;
left: 95%;
margin-top: -6px;
margin-left: -1px;
border: 0;
}
.dropdown-submenu:hover>.dropdown-menu {
display: block;
}
.dropdown-submenu>a:after {
display: block;
content: " ";
float: right;
width: 0;
height: 0;
border-color: transparent;
border-style: solid;
border-width: 5px 0 5px 5px;
border-left-color: searchResults.htmlccc;
margin-top: 5px;
margin-right: -10px;
}
.dropdown-submenu:hover>a:after {
border-left-color: searchResults.htmlfff;
}
.dropdown-submenu.pull-left {
float: none;
}
.dropdown-submenu.pull-left>.dropdown-menu {
left: -100%;
margin-left: 10px;
border: 0;
}
ul.mainDropDown {
margin: 0;
padding: 0;
}
ul.mainDropDown li {
list-style: none;
}
ul.dropdown-menu {
width: 285px;
}
li.dropdown-submenu a {
display: block;
}
@media only screen and (max-width: 800px) {
ul.dropdown-menu {
width: 150px;
}
}
.dropup {
list-style: none;
/*position: relative;
display: inline-block;*/
}
.dropup-content {
display: none;
position: absolute;
background-color: #f1f1f1;
min-width: 160px;
bottom: 50px;
z-index: 1;
}
.dropup-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropup-content a:hover {
background-color: #ccc
}
.dropup:hover .dropup-content {
display: block;
}
.dropup:hover .dropbtn {
background-color: #3e8e41;
}
</style>