修改bug：对象释放后访问对象的错误

FileService/Abstractions/IResumableCreator.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using Ufangx.FileServices.Models;
+
+namespace Ufangx.FileServices.Abstractions
+{
+    public interface IResumableCreator
+    {
+        Task<IResumableInfo> Create(string fileName, long fileSize, string fileType, long blobCount, int blobSize, string schemeName = null, string dir = null, string name = null);
+        Task<IResumableInfo> Get(string key);
+        FileValidateResult Validate(string fileName, long fileSize, string schemeName);
+
+    }
+}