添加项目文件。

FileService.Domain/UploadTaskState.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FileService.Domain
+{
+    public enum UploadTaskState
+    {
+        Created = 0,
+        Failed = 1,
+        Uploading = 2,
+        Uploaded = 4,
+        Merging = 5,
+        Completed = 6,
+    }
+}