代码中
- v-show = "index>0",是表示下标只有大于零时上一页按钮才会显示
- v-show = "index<list.length-1",是表示下标只有小于list数组的最大值才会显示，反之隐藏。
- @click = "index--"和@click = "index++",是点击按钮后加减数组的下标，达到切换页面的效果
- lis[]就是数组
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style></style>
</head><body><div id="app"><button v-show="index > 0" @click="index--">上一页</button><img v-bind:src="list[index]" alt=""><button v-show="index <list.length-1" @click="index++">下一页</button></div><!-- 引入是开发版本的包 --><script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script><script>const app = new Vue({el: '#app',data: {index: 0,list: ['./img/img01.png','./img/img02.png','./img/img03.png']},methods: {},})</script>
</body></html>
