/// <summary>
 /// 构造函数。
 /// </summary>
 public WorkThumbnailsService()
 {
     ModuleConfiguration cfg = new ModuleConfiguration();
     this.imageCacheRoot = cfg.WorkTempImageCache;
     this.imageDefaultPath = cfg.WorkTempDefaultImagePath;
     this.workDownloadService = new WorkDownloadService();
 }
 /// <summary>
 /// 构造函数。
 /// </summary>
 public AccessoriesDownload()
 {
     this.workDownloadService = new WorkDownloadService();
 }