Javascript 使用JS代码访问Slider的HTML代码中的图像
我正在尝试创建一个网站。在FTP中,我创建了js、css、img、字体和错误文件夹。我想把JS代码放到JS/slider.JS中,代码是slider.JS文件 当我这样做时,滑块不能正常工作 我认为问题在于你的能力Javascript 使用JS代码访问Slider的HTML代码中的图像,javascript,html,Javascript,Html,我正在尝试创建一个网站。在FTP中,我创建了js、css、img、字体和错误文件夹。我想把JS代码放到JS/slider.JS中,代码是slider.JS文件 当我这样做时,滑块不能正常工作 我认为问题在于你的能力 <script type="text/javascript" src="js/slider.js"></script> 我试过了,但仍然不起作用: var x = document.getElementsByClassName("mySlides").src
<script type="text/javascript" src="js/slider.js"></script>
我试过了,但仍然不起作用:
var x = document.getElementsByClassName("mySlides").src = "~/index.html/;
在javascript代码中,它还调用HTML代码中定义的“mySlides”。所以我希望调用和访问html类信息来检索这些数据
所需的index.html文件:
<!DOCTYPE html>
<html>
<title>COMING Soon!</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<body>
<h2 class="w3-center">COMING Soon! Temporary Cover</h2>
<script type="text/javascript" src="js/slider.js"></script>
<div id="navbar" class="navbar-collapse collapse navbar_area">
<ul class="nav navbar-nav navbar-right custom_nav">
<li class="active"><a href="index.html">Home</a></li>
<li><a href="contact.html">Contact Us</a></li>
<li><a href="about.html">About Us</a></li>
<li><a href="location.html">Location</a></li>
<li><a href="product.html">Our Products</a></li>
</ul>
</div><!--/.nav-collapse -->
<div class="w3-content w3-display-container">
<img class="mySlides" src="img/1.jpg" style="width:100%">
<img class="mySlides" src="img/2.jpg" style="width:100%">
<img class="mySlides" src="img/3.jpg" style="width:100%">
<img class="mySlides" src="img/4.jpg" style="width:100%">
<button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)">❮</button>
<button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)">❯</button>
</div>
</body>
</html>
马上就来!
马上就来!临时保险
❮
❯
slider.js文件:
var slideIndex = 1;
showDivs(slideIndex);
function plusDivs(n) {
showDivs(slideIndex += n);
}
function showDivs(n) {
var i;
var x = document.getElementsByClassName("mySlides");
if (n > x.length) {slideIndex = 1}
if (n < 1) {slideIndex = x.length}
for (i = 0; i < x.length; i++) {
x[i].style.display = "none";
}
x[slideIndex-1].style.display = "block";
x[slideIndex-1].style.height = "500px";
}
var slideIndex=1;
showDivs(slideIndex);
函数plusDivs(n){
showDivs(slideIndex+=n);
}
函数showDivs(n){
var i;
var x=document.getElementsByClassName(“mySlides”);
如果(n>x.length){slideIndex=1}
如果(n<1){slideIndex=x.length}
对于(i=0;i
index.html文件:
<!DOCTYPE html>
<html>
<title>COMING Soon!</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<body>
<h2 class="w3-center">COMING Soon! Temporary Cover</h2>
<div id="navbar" class="navbar-collapse collapse navbar_area">
<ul class="nav navbar-nav navbar-right custom_nav">
<li class="active"><a href="index.html">Home</a></li>
<li><a href="contact.html">Contact Us</a></li>
<li><a href="about.html">About Us</a></li>
<li><a href="location.html">Location</a></li>
<li><a href="product.html">Our Products</a></li>
</ul>
</div><!--/.nav-collapse -->
<div class="w3-content w3-display-container">
<img class="mySlides" src="img/1.jpg" style="width:100%">
<img class="mySlides" src="img/2.jpg" style="width:100%">
<img class="mySlides" src="img/3.jpg" style="width:100%">
<img class="mySlides" src="img/4.jpg" style="width:100%">
<button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)">❮</button>
<button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)">❯</button>
</div>
<script>
var slideIndex = 1;
showDivs(slideIndex);
function plusDivs(n) {
showDivs(slideIndex += n);
}
function showDivs(n) {
var i;
var x = document.getElementsByClassName("mySlides");
if (n > x.length) {slideIndex = 1}
if (n < 1) {slideIndex = x.length}
for (i = 0; i < x.length; i++) {
x[i].style.display = "none";
}
x[slideIndex-1].style.display = "block";
x[slideIndex-1].style.height = "500px";
}
</script>
</body>
</html>
马上就来!
马上就来!临时保险
❮
❯
var slideIndex=1;
showDivs(slideIndex);
函数plusDivs(n){
showDivs(slideIndex+=n);
}
函数showDivs(n){
var i;
var x=document.getElementsByClassName(“mySlides”);
如果(n>x.length){slideIndex=1}
如果(n<1){slideIndex=x.length}
对于(i=0;i
你检查过浏览器控制台上的错误报告了吗?一切看起来都很好,我想只有一个问题是你的js文件定位。尝试将脚本标记放在body标记的底部。问题可能是在DOM准备就绪之前调用函数名showDiv,参数为1。
<!DOCTYPE html>
<html>
<title>COMING Soon!</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<body>
<h2 class="w3-center">COMING Soon! Temporary Cover</h2>
<div id="navbar" class="navbar-collapse collapse navbar_area">
<ul class="nav navbar-nav navbar-right custom_nav">
<li class="active"><a href="index.html">Home</a></li>
<li><a href="contact.html">Contact Us</a></li>
<li><a href="about.html">About Us</a></li>
<li><a href="location.html">Location</a></li>
<li><a href="product.html">Our Products</a></li>
</ul>
</div><!--/.nav-collapse -->
<div class="w3-content w3-display-container">
<img class="mySlides" src="img/1.jpg" style="width:100%">
<img class="mySlides" src="img/2.jpg" style="width:100%">
<img class="mySlides" src="img/3.jpg" style="width:100%">
<img class="mySlides" src="img/4.jpg" style="width:100%">
<button class="w3-button w3-black w3-display-left" onclick="plusDivs(-1)">❮</button>
<button class="w3-button w3-black w3-display-right" onclick="plusDivs(1)">❯</button>
</div>
<script>
var slideIndex = 1;
showDivs(slideIndex);
function plusDivs(n) {
showDivs(slideIndex += n);
}
function showDivs(n) {
var i;
var x = document.getElementsByClassName("mySlides");
if (n > x.length) {slideIndex = 1}
if (n < 1) {slideIndex = x.length}
for (i = 0; i < x.length; i++) {
x[i].style.display = "none";
}
x[slideIndex-1].style.display = "block";
x[slideIndex-1].style.height = "500px";
}
</script>
</body>
</html>