Ibuffer转byte[] byte[] bytes=WindowsRuntimeBufferExtensions.ToArray(buffer,0,(int)buffer.Length); Byte[]转Ibuffer WindowsRuntimeBufferExtensions.AsBuffer(bytes,0,bytes.Length);
IRandomAccessStream转 Stream
Stream
stream=WindowsRuntimeStreamExtensions.AsStreamForRead(randomStream.GetInputStreamAt(0));Ibuffer转Stream
Stream stream =
WindowsRuntimeBufferExtensions.AsStream(buffer);Stream
stream = new MemoryStream(bytes);FileInputStream
inputStream=randomStream.GetInputStreamAt(0) as FileInputStream;FileOutputStream outStream=
randomStream.GetOutputStreamAt(0) as
FileOutputStream;原文：http://www.cnblogs.com/wangjinming/p/3584170.html