<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
ul{
list-style: none
}
.lunbo{
height: 400px;
width: 400px;
}
.lunbo ul li{
float: left;
width: 30px;
height: 30px;
background-color: darkred;
color: white;
line-height: 30px;
text-align: center;
}
</style>
</head>
<body>
<div id="app">
{{time}}
<div class="lunbo">
<img :src="currentSrc" alt="">
<ul>
<li v-for="(item,i) in imgArr" @click='currentHandler(item)'>{{i+1}}</li>
</ul>
</div>
<button @click="nextImg">下一张</button>
</div>
<script src="./js/vue.js"></script>
<script>
var app=new Vue({
el:"#app",
data:{
msg:"hello world!",
currentSrc:"./img/1.jpg",
time:`页面加载于${new Date().toLocaleString()}`,
imgArr:[
{id:1,scr:"./img/1.jpg"},
{id:2,scr:"./img/2.jpg"},
{id:3,scr:"./img/3.jpg"},
{id:4,scr:"./img/4.jpg"}
],
currentIndex:0,
},
methods:{
currentHandler(item){
this.currentSrc=item.scr;
},
nextImg(){
if(this.currentIndex==this.imgArr.length-1){
this.currentIndex=-1;
}
this.currentIndex++;
//console.log(this.currentIndex);
this.currentSrc=this.imgArr[this.currentIndex].scr;
}
}
})
</script>
</body>
</html>
