bug fixes

package.json

 {
   "name": "@ezijing/vue-form",
-  "version": "2.2.0",
+  "version": "2.2.1",
   "private": false,
   "description": "基于Vue Element-UI的表单",
   "scripts": {

src/packages/upload/src/main.vue

@@ -65,7 +65,7 @@ export default {
   computed: {
     fileList() {
       return this.files.map(item => {
-        return { id: item.id, url: item.oss_sign_url }
+        return { id: item.id, url: item.url || item.oss_sign_url }
       })
     },
     attrs() {