public static TestStruct FromBinaryReaderBlock(BinaryReader br) { //Read byte array byte[] buff = br.ReadBytes(Marshal.SizeOf(typeof(TestStruct))); ? //Make sure that the Garbage Collector doesn't move our buffer ? GCHandle handle = GCHandle.Alloc(buff, GCHandleType.Pinned); ? //Marshal the bytes TestStruct s = (TestStruct)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(TestStruct)); ? handle.Free();//Give control of the buffer back to the GC ? return s; } 想用這段程序,但結(jié)構(gòu)是直接指定的,如果結(jié)構(gòu)是個變量應(yīng)該怎么寫?