初始化项目，自 v1.7.1 版本开始

src/layout/components/Collapse/index.ts

@@ -0,0 +1,3 @@
+import Collapse from './src/Collapse.vue'
+
+export { Collapse }

src/layout/components/Collapse/src/Collapse.vue

@@ -0,0 +1,34 @@
+<script setup lang="ts">
+import { useAppStore } from '@/store/modules/app'
+import { propTypes } from '@/utils/propTypes'
+import { useDesign } from '@/hooks/web/useDesign'
+
+const { getPrefixCls } = useDesign()
+
+const prefixCls = getPrefixCls('collapse')
+
+defineProps({
+  color: propTypes.string.def('')
+})
+
+const appStore = useAppStore()
+
+const collapse = computed(() => appStore.getCollapse)
+
+const toggleCollapse = () => {
+  const collapsed = unref(collapse)
+  appStore.setCollapse(!collapsed)
+}
+</script>
+
+<template>
+  <div :class="prefixCls">
+    <Icon
+      :size="18"
+      :icon="collapse ? 'ep:expand' : 'ep:fold'"
+      :color="color"
+      class="cursor-pointer"
+      @click="toggleCollapse"
+    />
+  </div>
+</template>