我想在网页中的两个功能之间切换，但是我不知道如何...
码：
<html lang="en">
<head>
<meta charset="UTF-8"/>
<link rel="stylesheet" type="text/css" media="screen" href="/css/style.css"/>
<title>My Project</title>
<script>
function openNav() {
document.getElementById("mySidenav").style.width = "250px";
document.getElementById("main").style.marginLeft = "250px";
document.body.style.backgroundColor = "rgba(0,0,0,0.4)";
}
function closeNav() {
document.getElementById("mySidenav").style.width = "0";
document.getElementById("main").style.marginLeft = "0";
document.body.style.backgroundColor = "white";
}
</script>
</head>
<body>
<div id="main">
<div class="head">
<span class="openbtn" id="navbtn" onclick="openNav(); closeNav(); ">☰</span>
<p> Do Re Mi Fa So Laa</p>
</div>
</div>
<div id="mySidenav" class="sidenav">
<a href="javascript:void(0)" class="openbtn" onclick="closeNav()">☰xx</a>
<a href="#">About</a>
<a href="#">Services</a>
<a href="#">Clients</a>
<a href="#">Contact</a>
</div>
</body>
我想在navopen和navclose函数之间切换...
最佳答案
像这样吗
var nav = false;
function openNav() {
document.getElementById("mySidenav").style.width = "250px";
document.getElementById("main").style.marginLeft = "250px";
document.body.style.backgroundColor = "rgba(0,0,0,0.4)";
nav = true;
}
function closeNav() {
document.getElementById("mySidenav").style.width = "0";
document.getElementById("main").style.marginLeft = "0";
document.body.style.backgroundColor = "white";
nav = false;
}
function toggleNav() {
nav ? closeNav() : openNav();
}
然后只需在onClick（）中使用toggleNav（）