試卷上傳API Blob搬運源 先改回個人，之後用flag方式做判斷

TEAMModelOS/Controllers/Client/HiTeachController.cs

@@ -1196,12 +1196,12 @@ namespace TEAMModelOS.Controllers.Client
                         string targetScope = dbExamInfo.scope; //評測對象 school：校本班級  private：私人課程
                         var blobPrivateContainer = _azureStorage.GetBlobContainerClient(id);
                         string sourceBlobPath = recordPaperInfoDic["blob"];
+                        Azure.Pageable<BlobItem> sourceBlobs = blobPrivateContainer.GetBlobs(prefix: sourceBlobPath);
                         string destBlobPath = $"exam/{dbExamInfo.id}/paper/{recordPaperInfoDic["id"]}/"; //拷貝對象路徑 path:exam/{評測ID}/paper/{試卷ID}/
                         if (targetScope.Equals("school")) //校本
                         {
                             string schoolId = dbExamInfo.school;
                             var blobSchoolContainer = _azureStorage.GetBlobContainerClient(schoolId);
-                            Azure.Pageable<BlobItem> sourceBlobs = blobSchoolContainer.GetBlobs(prefix: sourceBlobPath);
                             if (sourceBlobs.Count() > 0)
                             {
                                 foreach (var blob in sourceBlobs)
@@ -1223,7 +1223,6 @@ namespace TEAMModelOS.Controllers.Client
                         }
                         else //私人
                         {
-                            Azure.Pageable<BlobItem> sourceBlobs = blobPrivateContainer.GetBlobs(prefix: sourceBlobPath);
                             if (sourceBlobs.Count() > 0)
                             {
                                 foreach (var blob in sourceBlobs)