IE中不支持js classList和target.matches。我列出了您可以使用的代码：
我有两个弹出菜单，基本上在点击时打开和关闭。我写了一个小代码，当用户点击两个菜单中的一个之外的任何地方时，都会关闭任何显示菜单。代码在Chrome和Firefox中运行得很好，但在IE中，菜单只有在点击时才会关闭。我对Javascript很陌生，所以我很确定有更好的方法可以做到这一点。这是我的代码：
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" href="img/">
<link rel="stylesheet" type="text/css" href="css/style.css">
</head>
<body>
<!-- Main Header -->
<header id="header">
<nav class="container">
<img onclick="navFunction(this)" id="navMenuImg" src="img/menu.png">
<img onclick="settingFunction(this)" id="navSettingImg" src="img/setting.png">
<div id="navMenuSetting">
<ul id="navMenu" class="navMenu">
<li><a class="navMenuLink" href="#">Videos</a></li>
<li><a class="navMenuLink" href="#">Pictures</a></li>
<li><a class="navMenuLink" href="#">Profiles</a></li>
</ul>
<ul id="navSetting" class="navSetting">
<li><a class="navMenuLink" href="">Account</a></li>
<li><a class="navMenuLink" href="deconnection.php">Log out</a></li>
</ul>
</div>
</nav>
</header>
<!-- Scripts -->
<script type="text/javascript">
function navFunction() {
document.getElementById("navMenu").classList.toggle("navMenuShow");
}
function settingFunction(){
document.getElementById("navSetting").classList.toggle("navMenuShow");
}
document.onclick = function(e) {
if (!e.target.matches('#navMenuImg') && !e.target.matches('#navSettingImg')) {
var navMenu = document.getElementById("navMenu");
var navSetting = document.getElementById("navSetting");
navMenu.classList.remove('navMenuShow');
navSetting.classList.remove('navMenuShow');
}
}
</script>
<!-- CSS -->
<style type="text/css">
#navMenuImg{
width: 55px;
height: 35px;
margin-top: 10px;
cursor: pointer;
}
.navMenu{
z-index: 1;
list-style-type: none;
padding: 0;
margin-top: 10px;
margin-right: 10px;
border-bottom:1px solid #ccc;
display: none;
}
#navSettingImg{
float: right;
width: 30px;
height: 30px;
margin-top: 12px;
margin-right: 12px;
cursor: pointer;
}
.navSetting{
position: relative;
right: 0;
z-index: 1;
list-style-type: none;
padding: 0;
margin-top: 10px;
border-bottom:1px solid #ccc;
display: none;
}
#navMenuSetting{
position: relative;
width: 100%;
background-color: red;
}
.navMenuShow{
display: block;
position: absolute;
float: right;
}
</style>
</body>
提前谢谢！
function navFunction() {
document.getElementById("navMenu").className+=" navMenuShow";
}
function settingFunction(){
document.getElementById("navSetting").className+=" navMenuShow";
}
document.onclick = function(event) {
var matchesOne = event.target.matches ? event.target.matches('#navMenuImg') : event.target.msMatchesSelector('#navMenuImg');
var matchesTwo = event.target.matches ? event.target.matches('#navSettingImg') : event.target.msMatchesSelector('#navSettingImg');
if (!matchesOne&&!matchesTwo) {
var navMenu = document.getElementById("navMenu");
var navSetting = document.getElementById("navSetting");
navMenu.className=navMenu.className.replace(/navMenuShow/g,"");
navSetting.className=navSetting.className.replace(/navMenuShow/g,"");
}
}
该代码经过测试，并在IE和Chrome中100%运行。