diff --git a/package.json b/package.json
index 492b83b..1abd1ad 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-waterfall-mini",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "author": {
     "name": "Dave_12138",
     "email": "dave-12138@outlook.com",
diff --git a/src/App.vue b/src/App.vue
index b7856b0..4edd513 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,10 +1,10 @@
 <script setup lang="ts">
-import { reactive, } from 'vue';
+import { reactive } from 'vue';
 import { Waterfall } from './main';
 import BSInput from './components/BSInput.vue';
 const c = Array.from<string>("0123456789ABCDEF")
 const d = () => c[(c.length * Math.random()) | 0]
-const _createItem = () => ({ id: crypto.randomUUID(), h: 3 + (Math.random() * 30) | 0, c: '#' + d() + d() + d() });
+const _createItem = () => ({ id: crypto.randomUUID(), h: (3 + (Math.random() * 30) | 0) + 'rem', c: '#' + d() + d() + d() });
 const createItem = () => {
     const e = _createItem();
     try {
@@ -91,7 +91,7 @@ const settings = reactive({
     <div class=" container">
         <Waterfall :list="list" #="{ item, index }" :="props" :style="{ ...settings.style }">
             <div class="my-item" @click="list.splice(index, 1)" :style="{ backgroundColor: item.c }">
-                <div :style="{ height: item.h + 'rem' }">
+                <div :style="{ height: item.h }">
                     <div>{{ item[settings.key1] }}</div>
                     <div v-html="item[settings.key2]"></div>
                 </div>
diff --git a/src/components/Waterfall.vue b/src/components/Waterfall.vue
index 5cee3ae..a7913a9 100644
--- a/src/components/Waterfall.vue
+++ b/src/components/Waterfall.vue
@@ -1,8 +1,9 @@
-<script lang="ts">
-import { computed, defineComponent, provide, reactive, ref, watch } from 'vue';
-import type { PropType, CSSProperties } from 'vue';
+<script lang="ts" setup>
+import { computed, provide, reactive, ref, watch } from 'vue';
+import type { CSSProperties } from 'vue';
 import { useDebounceFn, useResizeObserver } from "@vueuse/core";
 type ColCount = number;
+type Item = Record<string, any>;
 /**
  * @member x 第几列 
  * @member y 高度，单位是px
@@ -17,116 +18,100 @@ function toCss(obj: Record<string, any>, forceCustomName: boolean = false): CSSP
     .map((k) => ({ [k.replace(prevReg, "--$1").replace(/\B([A-Z])/g, "-$1").toLowerCase()]: obj[k] }))
     .reduce((o, p) => Object.assign(o, p), {})
 }
-type Item = Record<string, any>;
-export default defineComponent({
-  props: {
-    list: {
-      type: Array as PropType<Item[]>,
-      default: () => []
-    },
-    breakPoint: {
-      type: Function as PropType<(wapperWidth: number) => ColCount>,
-      default: (w: number) => Math.floor(w / 200)
-    },
-    rowKey: {
-      type: Function as PropType<(element: Item) => PropertyKey>,
-      default: (e: { id: string }) => e.id
-    },
-    transition: {
-      type: Number,
-      default: 300
-    },
-    joinDuration: {
-      type: Number,
-      default: 300
-    },
-    animate: {
-      type: String,
-      default: "fade-in"
-    }
-  },
-  setup(props, { expose }) {
-    const wtfElement = ref<HTMLDivElement | null>(null);
-    const wapperWidth = ref<number>(0);
-    const borderOffset = reactive({ OffsetX: 0, OffsetY: 0, });
-    useResizeObserver(wtfElement, ([entry]) => {
-      const { width, top, left } = entry.contentRect;
-      borderOffset.OffsetX = left;
-      borderOffset.OffsetY = top;
-      wapperWidth.value = width;
-    })
-    // 有几列(桶)
-    const colCount = computed(() => Math.max(1, props.breakPoint(wapperWidth.value)));
-    // 列(桶)宽
-    const itemFlexWidth = computed(() => Math.floor(wapperWidth.value / colCount.value));
-    // 所有item高度表
-    function getItemHeights() {
-      return props.list.map((_, i) => wtfElement.value?.children[i]?.getBoundingClientRect().height ?? 1 << 28).map(n => Math.round(n));
-    }
-    // 位置表
-    const itemPosList = reactive<Record<string, ItemPos>>({});
-    // waterfall容器 高度
-    const wapperHeight = ref(0);
-    // waterfall容器style
-    const wtfCss = computed<CSSProperties>(() => ({
-      height: `${wapperHeight.value}px`,
-      ...toCss({
-        ItemWidth: itemFlexWidth.value,
-        Transition: props.transition,
-        JoinDuration: props.joinDuration,
-        ...borderOffset
-      }),
-    }))
-    const listed = reactive<Record<string, boolean>>({});
-    /**
-     * Get String Key 获取key，但是string
-     * @param item 
-     */
-    function gsk(item: Item): string {
-      return props.rowKey(item)?.toString() ?? props.list.indexOf(item).toString();
-    }
-    // 计算所有item位置
-    function render() {
-      if (!wapperWidth.value) {
-        return;
-      }
-      // 列(桶)高度
-      const bucketHeights = Array.from<number>({ length: colCount.value }).fill(0);
-      // itemPosList.splice(0);
-      const heights = getItemHeights();
-      heights.forEach((itemHeight, index) => {
-        // 当前最短的列(桶)
-        const minBuckIndex = bucketHeights.reduce((pv, v, i, arr) => arr[pv] > v ? i : pv, 0);
-        itemPosList[gsk(props.list[index])] = ({ x: minBuckIndex, y: bucketHeights[minBuckIndex] });
-        bucketHeights[minBuckIndex] += itemHeight;
-      });
-      wapperHeight.value = Math.max(...bucketHeights) + borderOffset.OffsetY;
-      setTimeout(() => {
-        props.list.forEach((e, i) => {
-          listed[gsk(e)] = true;
-        });
-      }, Math.max(20, props.transition));
-    }
-    // 防抖
-    const rerender = useDebounceFn(render, () => 100);
-    // 提供给子组件的重排接口
-    provide("imgLoaded", rerender);
-    watch([colCount, wapperWidth, () => props.list], () => {
-      rerender();
-    }, { deep: true, immediate: false });
-    function cssPos(item: Item): CSSProperties {
-      const { x, y } = itemPosList[gsk(item)] ?? { x: 0, y: 9000 };
-      return toCss({ x, y }, true);
-    }
-    function joined(item: Item): boolean {
-      return listed[gsk(item)] === true;
-    }
-    // 仅暴露重排函数
-    expose<{ rerender: () => void }>({ rerender });
-
-    return { wtfElement, wtfCss, cssPos, joined };
-  }
+interface Props {
+  list: Item[];
+  breakPoint: (wapperWidth: number) => ColCount;
+  rowKey: (element: Item) => PropertyKey;
+  transition: number;
+  joinDuration: number;
+  animate: string;
+}
+const props = withDefaults(defineProps<Props>(), {
+  list: () => [],
+  breakPoint: (w: number) => Math.floor(w / 200),
+  rowKey: (e: Item | { id: PropertyKey }): PropertyKey => e.id,
+  transition: 300,
+  joinDuration: 300,
+  animate: "fade-in"
+});
+const wtfElement = ref<HTMLDivElement | null>(null);
+const wapperWidth = ref<number>(0);
+const borderOffset = reactive({ OffsetX: 0, OffsetY: 0, });
+useResizeObserver(wtfElement, ([entry]) => {
+  const { width, top, left } = entry.contentRect;
+  borderOffset.OffsetX = left;
+  borderOffset.OffsetY = top;
+  wapperWidth.value = width;
 })
+// 有几列(桶)
+const colCount = computed(() => Math.max(1, props.breakPoint(wapperWidth.value)));
+// 列(桶)宽
+const itemFlexWidth = computed(() => Math.floor(wapperWidth.value / colCount.value));
+// 所有item高度表
+function getItemHeights() {
+  return props.list.map((_, i) => wtfElement.value?.children[i]?.getBoundingClientRect().height ?? 1 << 28).map(n => Math.round(n));
+}
+// 位置表
+const itemPosList = reactive<Record<string, ItemPos>>({});
+// waterfall容器 高度
+const wapperHeight = ref(0);
+// waterfall容器style
+const wtfCss = computed<CSSProperties>(() => ({
+  height: `${wapperHeight.value}px`,
+  ...toCss({
+    ItemWidth: itemFlexWidth.value,
+    Transition: props.transition,
+    JoinDuration: props.joinDuration,
+    ...borderOffset
+  }),
+}))
+const listed = reactive<Record<string, boolean>>({});
+/**
+ * Get String Key 获取key，但是string
+ * @param item 
+ */
+function gsk(item: Item): string {
+  return props.rowKey(item)?.toString() ?? props.list.indexOf(item).toString();
+}
+// 计算所有item位置
+function render() {
+  if (!wapperWidth.value) {
+    return;
+  }
+  // 列(桶)高度
+  const bucketHeights = Array.from<number>({ length: colCount.value }).fill(0);
+  // itemPosList.splice(0);
+  const heights = getItemHeights();
+  heights.forEach((itemHeight, index) => {
+    // 当前最短的列(桶)
+    const minBuckIndex = bucketHeights.reduce((pv, v, i, arr) => arr[pv] > v ? i : pv, 0);
+    itemPosList[gsk(props.list[index])] = ({ x: minBuckIndex, y: bucketHeights[minBuckIndex] });
+    bucketHeights[minBuckIndex] += itemHeight;
+  });
+  wapperHeight.value = Math.max(...bucketHeights) + borderOffset.OffsetY;
+  setTimeout(() => {
+    props.list.forEach((e, i) => {
+      listed[gsk(e)] = true;
+    });
+  }, Math.max(20, props.transition));
+}
+// 防抖
+const rerender = useDebounceFn(render, () => 100);
+// 提供给子组件的重排接口
+provide("imgLoaded", rerender);
+watch([colCount, wapperWidth, () => props.list], () => {
+  rerender();
+}, { deep: true, immediate: false });
+function cssPos(item: Item): CSSProperties {
+  const { x, y } = itemPosList[gsk(item)] ?? { x: 0, y: 9000 };
+  return toCss({ x, y }, true);
+}
+function joined(item: Item): boolean {
+  return listed[gsk(item)] === true;
+}
+// 仅暴露重排函数
+defineExpose<{ rerender: () => void }>({ rerender });
+
 </script>
 <template>
   <div class="waterfall-list" :style="wtfCss" ref="wtfElement">