ArcGIS Engine如何将内存中的raster保存为硬盘中的

解决了，奉献上核心接口IConversionOp converop = new RasterConversionOpClass();
                IWorkspaceFactory wf=new RasterWorkspaceFactoryClass();
                IWorkspace wk=wf.OpenFromFile(fpath,0);
                converop.ToRasterDataset(dt, "tiff", wk, fname);