struct和byte[]相互转换（用Marshal类实现）

相当于序列化与反序列化，但是不用借助外部文件

1、struct转换为byte[]
static byte[] StructToBytes(object structObj)
{
int size = Marshal.SizeOf(structObj);
IntPtr buffer = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structObj, buffer, false);
byte[] bytes = new byte[size];
Marshal.Copy(buffer, bytes, 0, size);
return bytes;
}
finally
{
Marshal.FreeHGlobal(buffer);
}

}
2、byte[]转换为struct
static object BytesToStruct(byte[] bytes, Type strcutType)
{
int size = Marshal.SizeOf(strcutType);
IntPtr buffer = Marshal.AllocHGlobal(size);
try
{
Marshal.Copy(bytes, 0, buffer, size);
return Marshal.PtrToStructure(buffer, strcutType);
}
finally
{
Marshal.FreeHGlobal(buffer);
}
}