<script lang="ts" setup name="searchItem"> const inputslot = ref<HTMLElement | null >(null) onMounted(() => { // 如果没有子元素,则控制显示为none, 不占位 const searchitem = inputslot.value if (searchitem && searchitem.childNodes && searchitem.childNodes.length === 0) { searchitem.style.display = 'none' } }) </script> <template> <div ref="inputslot" class="search-item"> <slot /> </div> </template> <style lang="scss" scoped> .search-item { display: inline-block; margin-bottom: 10px; vertical-align: top; margin-right: 5px; } .search-item:last-child { margin-right: 0; } </style>