> 上传文件组件

```vue
<def-upload v-model:fileList="fileList" v-bind="uploadOptions">
  <template #tip>提示文字</template>
</def-upload>
```

```js
const fileList = ref<UploadUserFile[]>()
const uploadOptions: IUpload = {
  disabled: false,
  listType: 'picture-card',
  limit: 3,
  hiddenTip: false
}
watch(() => fileList.value, val => {
  console.log('fileList is :', val)
})
```