图示：
第一步：
<el-carousel :class="changeIndex==0?'leftBtnNone':changeIndex==imgDataList.length-1? 'rightBtnNone':''" height="546px" :autoplay="false" @change="changeNext"><el-carousel-item v-for="(item,index) in imgDataList" :key="index">//内容</el-carousel-item>
</el-carousel>
第二步：
data() {return {imgDataList: []，changeIndex:' '}},
第三步
methods：{changeNext(e){this.changeIndex=e},}
第四步
<style scoped>
/deep/.leftBtnNone {.el-carousel__arrow--left {display: none !important;}
}
/deep/.rightBtnNone {.el-carousel__arrow--right {display: none !important;}
}
</style>
)
