[KEY WORDS] ASCII
Dec | Hex | Char | Dec | Hex | Char | Dec | Hex | Char | Dec | Hex | Char |
0 | 0 | NUL(null) | 32 | 20 | SP | 64 | 40 | @ | 96 | 60 | ` |
1 | 1 | SOH(start of heading) | 33 | 21 | ! | 65 | 41 | A | 97 | 61 | a |
2 | 2 | STX(start of text) | 34 | 22 | " | 66 | 42 | B | 98 | 62 | b |
3 | 3 | ETX(end of text) | 35 | 23 | # | 67 | 43 | C | 99 | 63 | c |
4 | 4 | EOT(end of transmission) | 36 | 24 | $ | 68 | 44 | D | 100 | 64 | d |
5 | 5 | ENQ(enquiry) | 37 | 25 | % | 69 | 45 | E | 101 | 65 | e |
6 | 6 | ACK(acknowledge) | 38 | 26 | & | 70 | 46 | F | 102 | 66 | f |
7 | 7 | BEL(bell) | 39 | 27 | 71 | 47 | G | 103 | 67 | g | |
8 | 8 | BS(backspace) | 40 | 28 | ( | 72 | 48 | H | 104 | 68 | h |
9 | 9 | HT(horizontal tab) | 41 | 29 | ) | 73 | 49 | I | 105 | 69 | i |
10 | a | LF(NL line feed, new line) | 42 | 2a | * | 74 | 4a | J | 106 | 6a | j |
11 | b | VT(vertical tab) | 43 | 2b | + | 75 | 4b | K | 107 | 6b | k |
12 | c | FF(NP form feed, new page) | 44 | 2c | , | 76 | 4c | L | 108 | 6c | l |
13 | d | CR(carriage return) | 45 | 2d | - | 77 | 4d | M | 109 | 6d | m |
14 | e | SO(shift out) | 46 | 2e | . | 78 | 4e | N | 110 | 6e | n |
15 | f | SI(shift in) | 47 | 2f | / | 79 | 4f | O | 111 | 6f | o |
16 | 10 | DLE(data link escape) | 48 | 30 | 0 | 80 | 50 | P | 112 | 70 | p |
17 | 11 | DC1(device control 1) | 49 | 31 | 1 | 81 | 51 | Q | 113 | 71 | q |
18 | 12 | DC2(device control 2) | 50 | 32 | 2 | 82 | 52 | R | 114 | 72 | r |
19 | 13 | DC3(device control 3) | 51 | 33 | 3 | 83 | 53 | S | 115 | 73 | s |
20 | 14 | DC4(device control 4) | 52 | 34 | 4 | 84 | 54 | T | 116 | 74 | t |
21 | 15 | NAK(negative acknowledge) | 53 | 35 | 5 | 85 | 55 | U | 117 | 75 | u |
22 | 16 | SYN(synchronous idle) | 54 | 36 | 6 | 86 | 56 | V | 118 | 76 | v |
23 | 17 | ETB(end of trans. block) | 55 | 37 | 7 | 87 | 57 | W | 119 | 77 | w |
24 | 18 | CAN(cancel) | 56 | 38 | 8 | 88 | 58 | X | 120 | 78 | x |
25 | 19 | EM(end of medium) | 57 | 39 | 9 | 89 | 59 | Y | 121 | 79 | y |
26 | 1a | SUB(substitute) | 58 | 3a | : | 90 | 5a | Z | 122 | 7a | z |
27 | 1b | ESC(escape) | 59 | 3b | ; | 91 | 5b | [ | 123 | 7b | { |
28 | 1c | FS(file separator) | 60 | 3c | < | 92 | 5c | \ | 124 | 7c | | |
29 | 1d | GS(group separator) | 61 | 3d | = | 93 | 5d | ] | 125 | 7d | } |
30 | 1e | RS(record separator) | 62 | 3e | > | 94 | 5e | ^ | 126 | 7e | ~ |
31 | 1f | US(unit separator) | 63 | 3f | ? | 95 | 5f | _ | 127 | 7f | DEL |
\n | 0x0a | 换行 |
\r | 0x0d | 回车 |
\t | 0x09 | 水平指标 |
\b | 0x08 | 退格 |
\a | 0x07 | 响铃 |
\v | 0x0b | 垂直指标 |
\' | 0x27 | 单引号 |
\" | 0x22 | 双引号 |
\\ | 0x5c | 反斜线 |
\f | 0x0c | 换页 |
\ooo | 用1-3个八进制数字指定ASCII码 |
\0 | 代表ASCII码为0的控制符 |
\033 | 代表ASCII码为八进制033的控制符(Esc按键产生的码) |
规律:
控制字符 ASCII码的1/2/3……分别对应键盘的Ctrl+A、Ctrl+B、Ctrl+C……。Ctrl+Z的ASCII码为26。参照大写字母之后的编码,Ctrl+[=27、Ctrl+\=28、Ctrl+]=29、Ctrl+^=30。常用控制字符有:退格8,制表符9,换行10,回车13,Esc27。流量控制字符Xoff17、Xon19对应的键盘按键分别是Ctrl+Q、Ctrl+S。