我在javascript中通过id传递一个值，如果它获得id，它必须隐藏li但问题是它只隐藏第一个li第二个li仍然显示
$(function() {
$("#0").hide();
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<li id="0" class="treeview">
<a href="#">
<i class="fa fa-files-o"></i>
<span>Header Options<i class="fa fa-angle-left pull-right"></i></span>
</a>
<ul class="treeview-menu">
<li><a href="addlogo.php"><i class="fa fa-circle-o"></i>Add logo</a></li>
<li><a href="addmenu.php"><i class="fa fa-circle-o"></i>Add Main Menu</a></li>
<li><a href="addslider.php"><i class="fa fa-circle-o"></i>Add slider img</a></li>
</ul>
</li>
<li id="0" class="treeview">
<a href="#">
<i class="fa fa-files-o"></i>
<span>Home Content<i class="fa fa-angle-left pull-right"></i></span>
</a>
<ul class="treeview-menu">
<li><a href="home_content.php"><i class="fa fa-circle-o"></i>Add
Content</a></li>
</ul>
</li>那就试试这个。
$(function() {
$("li").each(function(index, item) {
var li = $(item);
if(li.attr('id') == "0")
li.hide();
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<li id="0" class="treeview">
<a href="#">
<i class="fa fa-files-o"></i>
<span>Header Options<i class="fa fa-angle-left pull-right"></i></span>
</a>
<ul class="treeview-menu">
<li><a href="addlogo.php"><i class="fa fa-circle-o"></i>Add logo</a></li>
<li><a href="addmenu.php"><i class="fa fa-circle-o"></i>Add Main Menu</a></li>
<li><a href="addslider.php"><i class="fa fa-circle-o"></i>Add slider img</a></li>
</ul>
</li>
<li id="0" class="treeview">
<a href="#">
<i class="fa fa-files-o"></i>
<span>Home Content<i class="fa fa-angle-left pull-right"></i></span>
</a>
<ul class="treeview-menu">
<li><a href="home_content.php"><i class="fa fa-circle-o"></i>Add
Content</a></li>
</ul>
</li>更好的主意是使用data属性。例子：
$(function() {
$("li[data-id='0']").hide();
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<li data-id="0" class="treeview">
<a href="#">
<i class="fa fa-files-o"></i>
<span>Header Options<i class="fa fa-angle-left pull-right"></i></span>
</a>
<ul class="treeview-menu">
<li><a href="addlogo.php"><i class="fa fa-circle-o"></i>Add logo</a></li>
<li><a href="addmenu.php"><i class="fa fa-circle-o"></i>Add Main Menu</a></li>
<li><a href="addslider.php"><i class="fa fa-circle-o"></i>Add slider img</a></li>
</ul>
</li>
<li data-id="0" class="treeview">
<a href="#">
<i class="fa fa-files-o"></i>
<span>Home Content<i class="fa fa-angle-left pull-right"></i></span>
</a>
<ul class="treeview-menu">
<li><a href="home_content.php"><i class="fa fa-circle-o"></i>Add
Content</a></li>
</ul>
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我来说两句