参考文章:https://www.jb51.net/javascript/284643cld.htm
解决方法
官网 https://vitejs.cn/guide/assets.html#the-public-directory
<div class="picfloat"><img :src="oneNews.floatPic" alt="1">
</div>
import { reactive } from 'vue';let oneNews = reactive({floatPic: new URL('@/assets/home-cake3.jpg',import.meta.url).href,
})