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				@@ -9,6 +9,7 @@ import { 
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				 } from 'vue'; 
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				 import styles from './index.module.less'; 
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				 import { useRect } from '@vant/use'; 
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				+import { useResizeObserver } from '@vueuse/core'; 
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				 export default defineComponent({ 
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				   name: 'm-sticky', 
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				@@ -62,11 +63,16 @@ export default defineComponent({ 
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				       } else { 
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				         forms.divStyle.bottom = props.offsetBottom || '0px'; 
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				       } 
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				-      const resize = new ResizeObserver(() => { 
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				-        const { height } = useRect(div2Ref.value); 
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				+      // const resize = new ResizeObserver(() => { 
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				+      //   const { height } = useRect(div2Ref.value); 
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				+      //   __initHeight(height); 
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				+      // }); 
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				+      // resize.observe(divRef.value); 
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				+      useResizeObserver(divRef.value, (entries: any) => { 
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				+        const entry = entries[0]; 
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				+        const { height } = entry.contentRect; 
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				         __initHeight(height); 
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				       }); 
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				-      resize.observe(divRef.value); 
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				       // nextTick(() => { 
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				       //   // 为了处理刚开始头部高度为0的情况 
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