hi,该问题是由于缺少Shared Access Signature的问题， 您可能需要在您的代码中加入类似于这样的一段代码：
//Create the shared access permissions and policy
BlobContainerPermissions containerPermissions = new BlobContainerPermissions();
string sas = container.GetSharedAccessSignature(new SharedAccessPolicy()
{
SharedAccessExpiryTime = DateTime.UtcNow.AddMinutes(30), Permissions =
SharedAccessPermissions.Write | SharedAccessPermissions.Read
});
//Turn off public access
containerPermissions.PublicAccess = BlobContainerPublicAccessType.Off;
container.SetPermissions(containerPermissions);
string uniqueBlobName = string.Format(@"<storagecontainername>/<filename>_{0}.config",
Guid.NewGuid().ToString());
//assign the shared access policy
CloudBlobClient blobClient = new CloudBlobClient(account.BlobEndpoint, new
StorageCredentialsSharedAccessSignature(sas));
CloudBlob blb = blobClient.GetBlobReference(uniqueBlobName);
在代码中您可以获取SharedAccessSignature并且指定给blobclient。您可以参考这个case，出现同样的错误（
http://blogs.msdn.com/b/skaufman/archive/2012/10/15/blob-storage-and-shared-access-signatures.aspx ）。同时为了更好的理解这个问题，建议您看这个blog （http://blogs.msdn.com/b/windowsazurestorage/archive/2012/06/12/introducing-table-sas-shared-access-signature-queue-sas-and-update-to-blob-sas.aspx）
希望对您有所帮助。
Regards，
Will
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