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lib/component/form/cascader/cascader.vue

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+<template>
+  <a-cascader :load-data="loadData" :options="options" change-on-select>
+    <template #[item]="data" v-for="item in Object.keys($slots)" :key="item">
+      <slot :name="item" v-bind="data || {}"> </slot>
+    </template>
+  </a-cascader>
+</template>
+<script lang="ts">
+  import { defineComponent, ref } from 'vue';
+  import type { CascaderProps } from 'ant-design-vue';
+  export default defineComponent({
+    name: 'NsCascader',
+    setup(props, { attrs }) {
+      let options = ref<any[]>(attrs['options'] || []);
+      let loadData: CascaderProps['loadData'] | null = (selectOptions) => {
+        attrs['loadData'](selectOptions, options, attrs);
+      };
+      if (attrs['loadData']) {
+        loadData(options);
+      } else {
+        loadData = null;
+      }
+
+      return {
+        loadData,
+        options,
+      };
+    },
+  });
+</script>
+<style lang="less" scoped></style>

lib/component/form/cascader/index.ts

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+import cascader from './cascader.vue';
+
+import { withInstall } from '/nerv-lib/util';
+
+export const NsCascader = withInstall(cascader);