HTML:非常简单,只需滑动带有按钮的幻灯片即可更改图像。
<img src="https://i.ytimg.com/vi/QJg2z3rRgSE/maxresdefault.jpg" id="myslides">
<ul id="mylist">
<li><button class="btns" id="btn1">Previous</button></li>
<li><button class="btns" id="btn2">Next</button></li>
</ul>
CSS:我在这里不需要帮助,我对设计的了解不多。
#myslides {
height: 100%;
width: 100%;
margin-left: auto;
margin-right: auto;
}
#mylist,
li {
display: inline-block;
position: relative;
top: -5px;
left: -20px
}
.btns {
height: 50px;
width: 200px;
background: #666666;
color: white;
font-size: 20px;
}
JQuery:我不知道我在做什么错。无法定义“ image”,因为它不是“ img”,所以为什么src更改不起作用?
$(docuent).ready(function() {
var slide = $("#myslides");
$("#btn2").click(function() {
if (slide.attr("src") == "https://i.ytimg.com/vi/QJg2z3rRgSE/maxresdefault.jpg") {
slide.attr("src", "https://techgage.com/wp-content/uploads/2015/11/The-Witcher-3-Wild-Hunt-at-3440x1440-Resolution.jpg");
}
});
});
$(docuent).ready(function() {
var slide = $("#myslides");
$("#btn2").click(function() {
if (slide.attr("src") == "https://i.ytimg.com/vi/QJg2z3rRgSE/maxresdefault.jpg") {
slide.attr("src", "https://techgage.com/wp-content/uploads/2015/11/The-Witcher-3-Wild-Hunt-at-3440x1440-Resolution.jpg");
}
});
});
#myslides {
height: 100%;
width: 100%;
margin-left: auto;
margin-right: auto;
}
#mylist,
li {
display: inline-block;
position: relative;
top: -5px;
left: -20px
}
.btns {
height: 50px;
width: 200px;
background: #666666;
color: white;
font-size: 20px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<img src="https://i.ytimg.com/vi/QJg2z3rRgSE/maxresdefault.jpg" id="myslides">
<ul id="mylist">
<li><button class="btns" id="btn1">Previous</button></li>
<li><button class="btns" id="btn2">Next</button></li>
</ul>
答案 0 :(得分:1)
您拼写错误的document
。如果您正在寻找制作滑块的更具扩展性的方法,则可以尝试执行以下操作:
$(document).ready(function () {
var visibleSlide = $("#myslides");
var slideList = [
"https://i.ytimg.com/vi/QJg2z3rRgSE/maxresdefault.jpg",
"https://techgage.com/wp-content/uploads/2015/11/The-Witcher-3-Wild-Hunt-at-3440x1440-Resolution.jpg"
];
var currentSlideIndex = 0;
$("#btn1").click(function () {
changeSlide('previous');
});
$("#btn2").click(function () {
changeSlide('next');
});
function changeSlide(direction) {
switch(direction) {
case 'previous':
if (currentSlideIndex > 0) {
currentSlideIndex--;
}
break;
case 'next':
if (currentSlideIndex < slideList.length - 1) {
currentSlideIndex++;
}
break;
default:
// no-op
}
visibleSlide.attr('src', slideList[currentSlideIndex]);
}
});
请参见CodePen。
如果您没有将jQuery加载到页面上,则将其添加到HTML的底部:
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
答案 1 :(得分:0)
您的代码可以正常工作,但是您只需将$(docuent)更改为$(document)
听到您可以看到Click to see
$(document).ready(function() {
您像下面这样写
$(docuent).ready(function() {