<div class="banner plr10" >
<swiper :options="swiperOption" ref="mySwiper" v-if='showBanner'>
<swiper-slide v-for='(item,index) in banner' :key='index'>
<img :src="item" alt="">
</swiper-slide>
</swiper>
</div>
在 循环的父元素上面 加上 v-if 就好了
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