我正在尝试制作一个自动幻灯片显示,该幻灯片显示整个页面并每4秒钟更改一次照片,我为此代码笔进行了设置以进行测试,但我不知道它有什么问题。 我目前正在使用5张图片,如果可能的话,我希望它每隔几秒钟更改一次,我在ASP.NET项目上使用了bootstrap 3,但它不会干扰我对幻灯片所做的任何操作
https://codepen.io/xElectric/pen/poomKQw
var slideIndex = 0;
showSlides();
function showSlides() {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slideIndex++;
if (slideIndex > slides.length) {slideIndex = 1}
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";
setTimeout(showSlides, 2000); // Change image every 2 seconds
}
* {box-sizing: border-box;}
body {font-family: Verdana, sans-serif;}
.mySlides {display: none;}
img {}
/* Slideshow container */
.slideshow-container {
position: relative;
margin: auto;
}
.active {
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}
}
/* On smaller screens, decrease text size */
@media only screen and (max-width: 300px) {
.text {font-size: 11px}
}
<div style="max-height: 100vh; overflow: hidden;">
<div class="slideshow-container">
<div class="mySlides fade">
<img src="https://i.imgur.com/vX8LONV.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/a9bx26U.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/PijASuc.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/vX8LONV.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/c8AjEXg.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/srhebZH.jpg" style="width:100vw;">
</div>
</div>
</div>
答案 0 :(得分:0)
您在代码段中编写了一些无用的代码,这些代码不需要HTML代码中不需要的点,点div等。
var slideIndex = 0;
showSlides();
function showSlides() {
var i;
var slides = document.getElementsByClassName("mySlides");
var dots = document.getElementsByClassName("dot");
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
slideIndex++;
if (slideIndex > slides.length) {slideIndex = 1}
slides[slideIndex-1].style.display = "block";
setTimeout(showSlides, 2000); // Change image every 2 seconds
}
* {box-sizing: border-box;}
body {font-family: Verdana, sans-serif;}
.mySlides {display: none;}
img {}
/* Slideshow container */
.slideshow-container {
position: relative;
margin: auto;
}
.active {
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}
}
/* On smaller screens, decrease text size */
@media only screen and (max-width: 300px) {
.text {font-size: 11px}
}
<div style="max-height: 100vh; overflow: hidden;">
<div class="slideshow-container">
<div class="mySlides fade">
<img src="https://i.imgur.com/vX8LONV.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/a9bx26U.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/PijASuc.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/vX8LONV.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/c8AjEXg.jpg" style="width:100vw;">
</div>
<div class="mySlides fade">
<img src="https://i.imgur.com/srhebZH.jpg" style="width:100vw;">
</div>
</div>
</div>
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