|  | @@ -1,5 +1,5 @@
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				|  |  |  import { NTabPane, NTabs } from 'naive-ui';
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				|  |  | -import { defineComponent, onMounted, ref, toRefs } from 'vue';
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				|  |  | +import { defineComponent, nextTick, onMounted, ref, toRefs } from 'vue';
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				|  |  |  import styles from './index.module.less';
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				|  |  |  import SelectItem from './select-item';
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				|  |  |  import { useResizeObserver } from '@vueuse/core';
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				|  | @@ -25,20 +25,22 @@ export default defineComponent({
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				|  |  |      const catchStore = useCatchStore();
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				|  |  |  
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				|  |  |      onMounted(async () => {
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				|  |  | -      useResizeObserver(
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				|  |  | -        document.querySelector(
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				|  |  | -          '.select-resource .n-tabs-nav--top'
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				|  |  | -        ) as HTMLElement,
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				|  |  | -        (entries: any) => {
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				|  |  | -          const entry = entries[0];
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				|  |  | -          const { height } = entry.contentRect;
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				|  |  | -          console.log(height, 'height - 11');
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				|  |  | -          document.documentElement.style.setProperty(
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				|  |  | -            '--modal-lesson-tab-height',
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				|  |  | -            height + 'px'
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				|  |  | -          );
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				|  |  | -        }
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				|  |  | -      );
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				|  |  | +      nextTick(() => {
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				|  |  | +        useResizeObserver(
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				|  |  | +          document.querySelector(
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				|  |  | +            '.select-resource .n-tabs-nav--top'
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				|  |  | +          ) as HTMLElement,
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				|  |  | +          (entries: any) => {
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				|  |  | +            const entry = entries[0];
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				|  |  | +            const { height } = entry.contentRect;
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				|  |  | +            console.log(height, 'height - 11');
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				|  |  | +            document.documentElement.style.setProperty(
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				|  |  | +              '--modal-lesson-tab-height',
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				|  |  | +              height + 'px'
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				|  |  | +            );
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				|  |  | +          }
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				|  |  | +        );
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				|  |  | +      });
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				|  |  |        // 获取教材分类列表
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				|  |  |        await catchStore.getMusicSheetCategory(true);
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				|  |  |      });
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