ASCII 码表
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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