本小节学会使用v-show和@click 、v-bind，v-bind可以简写为:
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title>
</head>
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script><body><div id="app"><button v-show="index>0" @click="index--">上一页</button><div><img :src="list[index]"></div><button v-show="index < list.length-1" @click="index++">下一页</button></div><script>const app = new Vue({el: '#app',data: {index: 0,list: ['./imgs/001.png','./imgs/002.png','./imgs/003.png','./imgs/004.png']}})</script>
</body></html>
)
![[Shell] ${} 的多种用法](http://pic.xiahunao.cn/[Shell] ${} 的多种用法)
