feat: added file download examples (#4853)

playground/src/views/demos/features/file-download/index.vue

@@ -0,0 +1,74 @@
+<script setup lang="ts">
+import { Page } from '@vben/common-ui';
+import {
+  downloadFileFromBase64,
+  downloadFileFromBlobPart,
+  downloadFileFromImageUrl,
+  downloadFileFromUrl,
+} from '@vben/utils';
+
+import { Button, Card } from 'ant-design-vue';
+
+import imageBase64 from './base64';
+</script>
+
+<template>
+  <Page title="文件下载示例">
+    <Card title="根据文件地址下载文件">
+      <Button
+        type="primary"
+        @click="
+          downloadFileFromUrl({
+            source:
+              'https://codeload.github.com/vbenjs/vue-vben-admin-doc/zip/main',
+            target: '_self',
+          })
+        "
+      >
+        Download File
+      </Button>
+    </Card>
+
+    <Card class="my-5" title="根据地址下载图片">
+      <Button
+        type="primary"
+        @click="
+          downloadFileFromImageUrl({
+            source:
+              'https://unpkg.com/@vbenjs/static-source@0.1.7/source/logo-v1.webp',
+            fileName: 'vben-logo.png',
+          })
+        "
+      >
+        Download File
+      </Button>
+    </Card>
+
+    <Card class="my-5" title="base64流下载">
+      <Button
+        type="primary"
+        @click="
+          downloadFileFromBase64({
+            source: imageBase64,
+            fileName: 'image.png',
+          })
+        "
+      >
+        Download Image
+      </Button>
+    </Card>
+    <Card class="my-5" title="文本下载">
+      <Button
+        type="primary"
+        @click="
+          downloadFileFromBlobPart({
+            source: 'text content',
+            fileName: 'test.txt',
+          })
+        "
+      >
+        Download TxT
+      </Button>
+    </Card>
+  </Page>
+</template>