我已经在我的页面中为幻灯片创建了一个部分!我也为它编写了HTML,CSS和Javascript,但是当我在chrome中运行它时,我得到了这个javascript错误:
未捕获的TypeError:无法读取属性' style'未定义的
showSlides @ slideshow.js:24
(匿名函数)@ slideshow.js:2
幻灯片显示框架正常工作且可见,但幻灯片显示的第一张图像未自动显示。我必须单击前进或后退按钮才能实际查看图片!!我猜它是因为这个javascript错误
任何人都可以帮我解决这个Javascript错误吗?
以下是我的HTML,CSS和Javascript文件的代码:
HTML部分:
const coinA = 2
const coinB = 5
const sum = 13
var arr = [];
arr[0] =0;
console.log(getMyTip(coinA, coinB, sum));
function getMyTip(){
for(var i=1; i<= sum; i++){
var minA, minB;
if( i < coinA){
minA = coinA - i;
}else{
minA = arr[i - coinA];
}
if( i < coinB){
minB = coinB - i;
}else{
minB = arr [i - coinB]
}
arr[i] = Math.min(minA, minB);
}
return arr[sum];
}
CSS部分:
<div class="slideShow" style="height: 700px;">
<script type="text/javascript" src="../Data/Scripts/Java/slideshow.js"></script>
<div class="slideshow-container">
<div class="mySlides fade">
<div class="numbertext">1 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_01.jpg">
</center>
<div class="text">Caption Text</div>
</div>
<div class="mySlides fade">
<div class="numbertext">2 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_02.jpg">
</center>
<div class="text">Caption Two</div>
</div>
<div class="mySlides fade">
<div class="numbertext">3 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_03.jpg">
</center>
<div class="text">Caption Three</div>
</div>
<div class="mySlides fade">
<div class="numbertext">4 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_04.jpg">
</center>
<div class="text">Caption Four</div>
</div>
<div class="mySlides fade">
<div class="numbertext">5 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_05.jpg">
</center>
<div class="text">Caption Five</div>
</div>
<div class="mySlides fade">
<div class="numbertext">6 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_06.jpg">
</center>
<div class="text">Caption Six</div>
</div>
<div class="mySlides fade">
<div class="numbertext">7 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_07.jpg">
</center>
<div class="text">Caption Seven</div>
</div>
<div class="mySlides fade">
<div class="numbertext">8 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_08.jpg">
</center>
<div class="text">Caption Eight</div>
</div>
<div class="mySlides fade">
<div class="numbertext">9 / 9</div>
<center>
<img src="../Data/Images/iphone7_plusReview/img_09.png">
</center>
<div class="text">Caption Nine</div>
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
</div>
<br>
<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>
<span class="dot" onclick="currentSlide(4)"></span>
<span class="dot" onclick="currentSlide(5)"></span>
<span class="dot" onclick="currentSlide(6)"></span>
<span class="dot" onclick="currentSlide(7)"></span>
<span class="dot" onclick="currentSlide(8)"></span>
<span class="dot" onclick="currentSlide(9)"></span>
</div>
</div>
我的slideshow.js Javascript文件据说有错误,如Chrome所示
* {box-sizing:border-box}
body {font-family: Verdana,sans-serif;margin:0}
.mySlides {display:none}
/* Slideshow container */
.slideshow-container {
max-width: 1010px;
min-height: 500px;
position: relative;
margin-top: 50px;
margin-bottom: auto;
margin-left: auto;
margin-right: auto;
}
/* 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: 15px;
padding: 8px 12px;
position: absolute;
top: 0;
}
/* The dots/bullets/indicators */
.dot {
cursor:pointer;
height: 13px;
width: 13px;
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}
}
Chrome说我在第一行有错误。 2&amp; 24,但我不明白错误是什么? 有人可以帮我修复此错误吗?我们很乐意接受任何帮助:)
答案 0 :(得分:0)
我实际上没有找到解决方案,但我的主要问题是,幻灯片的所有图像都应该在页面加载时自动加载,而不是使用上一个和下一个按钮!!
我发现在加载页面时我的函数没有自动加载,需要调用加载它们,例如使用上一个和下一个按钮。
所以我用
修复了它<body onLoad="showSlides(); viewSlides();">
onLoad属性从一开始就加载我的函数,所有图像都会在此之后自动加载。
我仍然无法解决这个问题&#34; Uncaught TypeError:无法读取属性&#39; style&#39;未定义&#34; javascript错误,但我的幻灯片和他们的脚本运行正常,所以我满意它
感谢所有试图帮助我的人,不过我的问题却有所不同,并且有不同的解决方案。