---------------+---------------+---------------+---------------+
HEX DEC keys   |HEX DEC keys   |HEX DEC keys   |HEX DEC keys   |
---------------+---------------+---------------+---------------+
            |10  16  Q      |20  32  D      |30  48  B      |
01   1  ESC    |11  17  W      |21  33  F      |31  49  N      |
02   2  1      |12  18  E      |22  34  G      |32  50  M      |
03   3  2      |13  19  R      |23  35  H      |33  51  ,      |
04   4  3      |14  20  T      |24  36  J      |34  52  .      |
05   5  4      |15  21  Y      |25  37  K      |35  53  /      |
06   6  5      |16  22  U      |26  38  L      |36  54  R Shift|
07   7  6      |17  23  I      |27  39  ;      |37  55  PrtSc  |
08   8  7      |18  24  O      |28  40  '      |38  56  Alt    |
09   9  8      |19  25  P      |29  41  `      |39  57  Space  |
0A  10  9      |1A  26  [      |2A  42  L Shift|3A  58  Caps   |
0B  11  0      |1B  27  ]      |2B  43  \      |3B  59  F1     |
0C  12  -      |1C  28         |2C  44  Z      |3C  60  F2     |
0D  13  =      |1D  29  CTRL   |2D  45  X      |3D  61  F3     |
0E  14  bs     |1E  30  A      |2E  46  C      |3E  62  F4     |
0F  15  Tab    |1F  31  S      |2F  47  V      |3F  63  F5     |
---------------+---------------+---------------+---------------+
40  64  F6     |50  80  Down   |               |               |
41  65  F7     |51  81  PgDn   |               |               |
42  66  F8     |52  82  Ins    |               |               |
43  67  F9     |53  83  Del    |               |               |
44  68  F10    |               |               |               |
45  69  Num    |               |               |               |
46  70  Scroll |               |               |               |
47  71  Home   |               |               |               |
48  72  Up     |               |               |               |
49  73  PgUp   |               |               |               |
4A  74  -      |               |               |               |
4B  75  Left   |               |               |               |
4C  76  Center |               |               |               |
4D  77  Right  |               |               |               |
4E  78  +      |               |               |               |
4F  79  End    |               |               |               |
---------------+---------------+---------------+---------------+

左 Crtl 扫描码是 1D ，表示 1D 00    右 Ctrl 键扫描码是 E0 1D，表示 1D E0

左 ALT 扫描码是  38 ，表示 38 00    右 ALT 键扫描码是  E0 38，表示 38 E0

左 Shift 扫描码是2A ，表示 2A 00    右 Shift 键扫描码是   36，表示 36 00