我已经搜索了我的问题的解决方案的高低 - 我是新编码并试图使用javascript将幻灯片插入我的网站...一切正常，只是第一张图片无论出于何种原因都没有显示？我假设答案是在我的css文件中做一些事情，但我可能是错的？当我点击页面底部的点时幻灯片显示工作和图像启动，它只是让第一张图像显示问题。
任何帮助将不胜感激 ：）
var slideIndex = 1;
showSlides(slideIndex);
// Next/previous controls
function plusSlides(n) {
showSlides(slideIndex += n);
}
// Thumbnail image controls
function currentSlide(n) {
showSlides(slideIndex = n);
}
function showSlides(n) {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
if (n > slides.length) {slideIndex = 1;}
if (n < 1) {slideIndex = slides.length;}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
} * {box-sizing:border-box}
/* Slideshow container */
.slideshow-container {
max-width: 1000px;
position: relative;
margin: auto;
}
/* Hide the images by default */
.mySlides {
display:none;
}
/* Next & previous buttons */
.prev, .next {
cursor: pointer;
position: absolute;
top: 50%;
width: auto;
margin-top: -22px;
padding: 16px;
color: white;
font-weight: bold;
font-size: 18px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
}
/* Position the "next button" to the right */
.next {
right: 0;
border-radius: 3px 0 0 3px;
}
/* On hover, add a black background color with a little bit see-
through */
.prev:hover, .next:hover {
background-color: rgba(0,0,0,0.8);
}
/* Caption text */
.text {
color: #f2f2f2;
font-size: 15px;
padding: 8px 12px;
position: absolute;
bottom: 8px;
width: 100%;
text-align: center;
}
/* Number text (1/3 etc) */
.numbertext {
color: #f2f2f2;
font-size: 12px;
padding: 8px 12px;
position: absolute;
top: 0;
}
/* The dots/bullets/indicators */
.dot {
cursor:pointer;
height: 15px;
width: 15px;
margin: 0 2px;
background-color: #bbb;
border-radius: 50%;
display: inline-block;
transition: background-color 0.6s ease;
}
.active, .dot:hover {
background-color: #717171;
}
/* Fading animation */
.fade {
-webkit-animation-name: fade;
-webkit-animation-duration: 1.5s;
animation-name: fade;
animation-duration: 1.5s;
}
@-webkit-keyframes fade {
from {opacity: .4}
to {opacity: 1}
}
@keyframes fade {
from {opacity: .4}
to {opacity: 1}
} <html>
<head>
<script src="slideshow-container.js"></script>
<link href="css/styles.css" "slider.css" rel="stylesheet"
type="text/css" media="screen" >
<link href="css/slideshow-container.css" rel="stylesheet"
type="text/css">
</head>
<body>
<div id="wrapper">
<div id="logo">
<li>
<div id="links">
<ul>
<li></li>
<li></li>
<li><a href="index.html">Welcome </a></li>
<li><a href="about.html">About</a></li>
<li><a href="gallery.html">Treatments</a></li>
<li><a href="contact.html">Contact</a></li>
</ul>
</div>
<a href="maintest.html"><img src= "Images/untitled folder/My
Choice Logo.jpg" width="350" class="fade">
</a></li>
</div>
<p> </p>
<p> </p>
<!-- Slideshow container -->
<div class="slideshow-container">
<!-- Full-width images with number and caption text -->
<div id="slide1" class="mySlides fade">
<img src="Images/untitled folder/My Choice Logo.jpg"
style="width:100%">
</div>
<div class="mySlides fade">
<img src="Images/untitled folder/Natural-Dog-Law-2-To-dojhgs,-energy-
is-everything.jpg" style="width:100%">
</div>
<div class="mySlides fade">
<img src= "Images/untitled folder/Treatment room.jpg"
style="width:100%">
</div>
<!-- Next and previous buttons -->
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<!-- The dots/circles -->
<div style="text-align:center">
<span class="dot" onclick="currentSlide(1)"></span>
<span class="dot" onclick="currentSlide(2)"></span>
<span class="dot" onclick="currentSlide(3)"></span>
</div>我设法解决了这个问题。不知道修复这个有多好但是有点玩css的其他功能以及我对html和css的基本理解我只为幻灯片创建了一个新的并且关闭了css中的命令，图像显示为一个块...因为它本身并没有像通常那样将它放在其他图像之上
新的HTML
<!-- Full-width images with number and caption text -->
<div id="slide1" class="mySlides fade" >
<img src="Images/untitled folder/MyChoiceLogo.jpg"
style="width:100%">
</div>
<div class="mySlides fade">
<img src="Images/untitled folder/Natural-Dog-Law-2-To-dojhgs-
energy-is-everything.jpg" style="width:100%">
</div>
新css（已添加）
.mySlides {
display:none;
}
#slide1 {display:block}
感谢看了这个的人，我希望我的解决方案不会造成任何问题？希望这可以帮助任何像我一样挣扎的人，我对如何解决的任何其他想法持开放态度:)再次感谢
调用该函数
currentSlide(1);
在你的js中，这将使第一张幻灯片在页面加载时可见。