这篇为自己用，方便自己写tab切换，以及动画效果。可以根据自身的场景来修改
template中

<template>
    <div>
        <div class="span">
            <span v-for="(item,index) in list"
                  :class="{active : listActive === index}"
                  @click="changeActive(index)"
                  :key="index"
            >{{item}}</span>
        </div>
        <div class="ul">
            <ul :style="{width:`${list.length*600}px`,transform: `translateX(${-listActive*600}px)`}">
                <li v-for="(item,index) in list"
                    :key="index"
                >{{item}}
                </li>
            </ul>
        </div>
    </div>
</template>

script中

<script>
    export default {
        name: "Tabs",
        props:[ 'list' , 'active' ],//list为tabs数组：['content1', 'content2', 'content3'] , active:选中的tab
        data(){
            return{
                listActive : this.active
            }
        },
        methods:{
            changeActive(index){
                this.listActive = index ;
                this.$emit('changeActive',index)
            }
        }
    }
</script>

style中

<style scoped lang="less">
    .span {
        display: flex;
        width: 600px;
        margin: 20px auto;
        span {
            flex: 1;
            background-color: cornflowerblue;
            color: #fff;
            text-align: center;
            cursor: pointer;
            transition: .2s linear;
            &:hover, &.active {
                background-color: lightblue;
            }
        }
    }

    .ul {
        width: 600px;
        margin: 10px auto;
        overflow: hidden;

        ul {
            height: 100px;
            transform: translateX(0);
            transition: .2s ease-in-out;

            li {
                display: inline-block;
                line-height: 100px;
                width: 600px;
                background-color: #eee;
                text-align: center;
            }
        }
    }
</style>