发现页面

lib/models/upload_model.dart

@@ -0,0 +1,20 @@
+class UploadModel {
+  final bool exists;
+  final int size;
+  final String path;
+  final String url;
+
+  UploadModel({
+    required this.exists,
+    required this.size,
+    required this.path,
+    required this.url,
+  });
+
+  factory UploadModel.fromJson(Map<String, dynamic> json) => UploadModel(
+        exists: json['exists'],
+        size: json['size'],
+        path: json['path'],
+        url: json['url'],
+      );
+}