下表列出了ASCII字符集。每一个字符有它的十进制值,十六进制值,终端上的显示结果,ASCII助记名,和ASCII控制字符定义。
十进制数值 | 十六进制值 | 终端显示 | ASCII助记名 | 备注 |
0 | 00 | ^@ | NUL | 空 |
1 | 01 | ^A | SOH | 文件头的开始 |
2 | 02 | ^B | STX | 文本的开始 |
3 | 03 | ^C | ETX | 文本的结束 |
4 | 04 | ^D | EOT | 传输的结束 |
5 | 05 | ^E | ENQ | 询问 |
6 | 06 | ^F | ACK | 确认 |
7 | 07 | ^G | BEL | 响铃 |
8 | 08 | ^H | BS | 后退 |
9 | 09 | ^I | HT | 水平跳格 |
10 | 0A | ^J | LF | 换行 |
11 | 0B | ^K | VT | 垂直跳格 |
12 | 0C | ^L | FF | 格式馈给 |
13 | 0D | ^M | CR | 回车 |
14 | 0E | ^N | SO | 向外移出 |
15 | 0F | ^O | SI | 向内移入 |
16 | 10 | ^P | DLE | 数据传送换码 |
17 | 11 | ^Q | DC1 | 设备控制1 |
18 | 12 | ^R | DC2 | 设备控制2 |
19 | 13 | ^S | DC3 | 设备控制3 |
20 | 14 | ^T | DC4 | 设备控制4 |
21 | 15 | ^U | NAK | 否定 |
22 | 16 | ^V | SYN | 同步空闲 |
23 | 17 | ^W | ETB | 传输块结束 |
24 | 18 | ^X | CAN | 取消 |
25 | 19 | ^Y | EM | 媒体结束 |
26 | 1A | ^Z | SUB | 减 |
27 | 1B | ^[ | ESC | 退出 |
28 | 1C | ^* | FS | 域分隔符 |
29 | 1D | ^] | GS | 组分隔符 |
30 | 1E | ^^ | RS | 记录分隔符 |
31 | 1F | ^_ | US | 单元分隔符 |
32 | 20 | (Space) | Space | |
33 | 21 | | | | | |
34 | 22 | ` | ` | |
35 | 23 | # | # | |
36 | 24 | $ | | |
37 | 25 | % | | |
38 | 26 | & | | |
39 | 27 | ‘ | | |
40 | 28 | ( | | |
41 | 29 | ) | | |
42 | 2A | * | | |
43 | 2B | + | | |
44 | 2C | , | | |
45 | 2D | - | | |
46 | 2E | . | | |
47 | 2F | / | | |
48 | 30 | 0 | | |
49 | 31 | 1 | | |
50 | 32 | 2 | | |
51 | 33 | 3 | | |
52 | 34 | 4 | | |
53 | 35 | 5 | | |
54 | 36 | 6 | | |
55 | 37 | 7 | | |
56 | 38 | 8 | | |
57 | 39 | 9 | | |
58 | 3A | : | | |
59 | 3B | ; | | |
60 | 3C | < | | |
61 | 3D | = | | |
62 | 3E | | | |
63 | 3F | | | |
64 | 40 | @ | | |
65 | 41 | A | | |
66 | 42 | B | | |
67 | 43 | C | | |
68 | 44 | D | | |
69 | 45 | E | | |
70 | 46 | F | | |
71 | 47 | G | | |
72 | 48 | H | | |
73 | 49 | I | | |
74 | 4A | J | | |
75 | 4B | K | | |
76 | 4C | L | | |
77 | 4D | M | | |
78 | 4E | N | | |
79 | 4F | O | | |
80 | 50 | P | | |
81 | 51 | Q | | |
82 | 52 | R | | |
83 | 53 | S | | |
84 | 54 | T | | |
85 | 55 | U | | |
86 | 56 | V | | |
87 | 57 | W | | |
88 | 58 | X | | |
89 | 59 | Y | | |
90 | 5A | Z | | |
91 | 5B | [ | | |
92 | 5C | “ | | |
93 | 5D | ] | | |
94 | 5E | ^ | | |
95 | 5F | _ | | |
96 | 60 | ‘ | | |
97 | 61 | a | | |
98 | 62 | b | | |
99 | 63 | c | | |
100 | 64 | d | | |
101 | 65 | e | | |
102 | 66 | f | | |
103 | 67 | g | | |
104 | 68 | h | | |
105 | 69 | i | | |
106 | 6A | j | | |
107 | 6B | k | | |
108 | 6C | l | | |
109 | 6D | m | | |
110 | 6E | n | | |
111 | 6F | o | | |
112 | 70 | p | | |
113 | 71 | q | | |
114 | 72 | r | | |
115 | 73 | s | | |
116 | 74 | t | | |
117 | 75 | u | | |
118 | 76 | v | | |
119 | 77 | w | | |
120 | 78 | x | | |
121 | 79 | y | | |
122 | 7A | z | | |
123 | 7B | { | | |
124 | 7C | | | | |
125 | 7D | } | | |
126 | 7E | | | |
127 | 7F | | DEL | Delete |
注意:
ASCII字符60—7Fh不能被存储到内存单元或数据记录文件。这些
值被转变到40h - 5Fh范围内的等价大写形式。这些字符可以被存到缓冲
区,并且在通讯时被发送和接收。
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