表1、ASCII码的编码方案
高位
低位
000 001 010 011 100 101 110 111
-----------------------------------------
0000 NUL DEL SP 0 @ P ` p
0001 SOH DC1 ! 1 A Q a q
0010 STX DC2 “ 2 B R b r
0011 ETX DC3 # 3 C S c s
0100 EOT DC4 $ 4 D T d t
0101 ENQ NAK % 5 E U e u
0110 ACK SYN & 6 F V f v
0111 BEL ETB ‘ 7 G W g w
1000 BS CAN ( 8 H X h x
1001 HT EM ) 9 I Y i y
1010 LF SUB * : J Z j z
1011 VT ESC + ; K [ k {
1100 FF FS < L \ l |
1101 CR GS - = M ] m }
1110 SO RS . > N ^ n ~
1111 SI US / ? O _ o Del
表2、字母和空格按键的编码表
按 键 单 键 SHIFT CTRL ALT
扫描码 ASCII码 扫描码 ASCII码 扫描码 ASCII码 扫描码 ASCII码
------------------------------------------------------------------
a and A 1E 61 1E 41 1E 01 1E 00
b and B 30 62 30 42 30 02 30 00
c and C 2E 63 2E 43 2E 03 2E 00
d and D 20 64 20 44 20 04 20 00
e and E 12 65 12 45 12 05 12 00
f and F 21 66 21 46 21 06 21 00
g and G 22 67 22 47 22 07 22 00
h and H 23 68 23 48 23 08 23 00
i and I 17 69 17 49 17 09 17 00
j an1 J 24 6A 24 4A 24 0A 24 00
k and K 25 6B 25 4B 25 0B 25 00
l and L 26 6C 26 4C 26 0C 26 00
m and M 32 6D 32 4D 32 0D 32 00
n and N 31 6E 31 4E 31 0E 31 00
o and O 18 6F 18 4F 18 0F 18 00
p and P 19 70 19 50 19 10 19 00
q and Q 10 71 10 51 10 11 10 00
r and R 13 72 13 52 13 12 13 00
s and S 1F 73 1F 53 1F 13 1F 00
t and T 14 74 14 54 14 14 14 00
u and U 16 75 16 55 16 15 16 00
v and V 2F 76 2F 56 2F 16 2F 00
w and W 11 77 11 57 11 17 11 00
x and X 2D 78 2D 58 2D 18 2D 00
y and Y 15 79 15 59 15 19 15 00
z and Z 2C 7A 2C 5A 2C 1A 2C 00
SpaceBar 39 20 39 20 39 20 39 20