代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<title>图片切换</title>
<style type="text/css">
*{
padding: 0;
margin: 0;
}
#app{
position: absolute;
width: 100px;
height: 100px;
top: 100px;
left: 400px;
}
#left{
position: relative;
top:-240px;
left: -45px;
font-size: 50px;
}
#right{
position: relative;
top: -300px;
left: 595px;
font-size: 50px;
}
a{
color: black;
text-decoration: none;
}
</style>
</head>
<body>
<div id="app">
<!-- 要轮询的图片 -->
<img :src="imgArr[index]"/>
<!-- 左箭头 -->
<a href="javascript:void(0)" id="left" @click="prev" v-show="index!=0">《</a>
<!-- 右箭头 -->
<a href="javascript:void(0)" id="right" @click="next" v-show="index<imgArr.length-1">》</a>
</div>
<script>
var app = new Vue({
el: "#app",
data: {
imgArr:[
"img/1.jpg",
"img/2.jpg",
"img/3.jpg",
"img/4.jpg",
"img/5.jpg",
],
index: 0,
},
methods: {
prev: function(){
this.index--;
},
next: function(){
this.index++;
},
}
})
</script>
</body>
</html>
总结：
