/// <summary>
 /// 增加<see cref="MultipartUpload"/>事件
 /// </summary>
 /// <param name="multipartUpload">事件信息</param>
 internal void AddMultipartUpload(MultipartUpload multipartUpload)
 {
     _multipartUploads.Add(multipartUpload);
 }
 /// <summary>
 /// 增加<see cref="MultipartUpload"/>事件
 /// </summary>
 /// <param name="multipartUpload">事件信息</param>
 internal void AddMultipartUpload(MultipartUpload multipartUpload)
 {
     _multipartUploads.Add(multipartUpload);
 }