添加项目文件。

FileService.Domain/FileState.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FileService.Domain
+{
+    public enum FileState
+    {
+        Created = 0,
+        Uploading = 1,
+        Uploaded = 2,
+        Failed = 3,
+        Deleted = 4
+    }
+}