解决办法
v-if来重新渲染 swiperVisible
<swiper class="swiper" :options="swiperOptionTop" ref="swiper1" v-if='swiperVisible'><swiper-slide class="slide-1" v-for='item in imgList'><img :src='item' /></swiper-slide>
</swiper>export default {data() {return {swiperVisible:true,swiperOptionTop: slidesPerView: 3,spaceBetween: 10,}}},mounted(){this.swiperOptionTop.spaceBetween=20;//修改options配置this.swiperVisible=false;//通过v-if切换，重新渲染swiperthis.$nextTick(()=>{this.swiperVisible=false;});}
}