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HTML 中的 ASCII码
HTML and XHTML uses standard 7-BIT ASCII when transmitting data over the Web.
HTML与XHTML都是使用标准的7-位 ASCII码来进行页面间数据的传输的
7-BIT ASCII represents 128 different character values (0-127).
7-位ASCII码代表了128个不同的字符值(0-127)
7-BIT Printable ASCII Characters
可打印的7-BIT ASCII字符
| 结果 | 描述 | 实体数 |
|---|---|---|
| space 间隙 |   | |
| ! | exclamation mark 感叹号 | ! |
| " | quotation mark 双引号 | " |
| # | number sign 井号 | # |
| $ | dollar sign 美圆符 | $ |
| % | percent sign 百分符 | % |
| & | ampersand | & |
| ' | apostrophe 单引 | ' |
| ( | left parenthesis | ( |
| ) | right parenthesis | ) |
| * | asterisk | * |
| + | plus sign | + |
| , | comma | , |
| - | hyphen | - |
| . | period | . |
| / | slash | / |
| 0 | digit 0 | 0 |
| 1 | digit 1 | 1 |
| 2 | digit 2 | 2 |
| 3 | digit 3 | 3 |
| 4 | digit 4 | 4 |
| 5 | digit 5 | 5 |
| 6 | digit 6 | 6 |
| 7 | digit 7 | 7 |
| 8 | digit 8 | 8 |
| 9 | digit 9 | 9 |
| : | colon | : |
| ; | semicolon | ; |
| < | less-than | < |
| = | equals-to | = |
| > | greater-than | > |
| ? | question mark | ? |
| @ | at sign | @ |
| A | uppercase A | A |
| B | uppercase B | B |
| C | uppercase C | C |
| D | uppercase D | D |
| E | uppercase E | E |
| F | uppercase F | F |
| G | uppercase G | G |
| H | uppercase H | H |
| I | uppercase I | I |
| J | uppercase J | J |
| K | uppercase K | K |
| L | uppercase L | L |
| M | uppercase M | M |
| N | uppercase N | N |
| O | uppercase O | O |
| P | uppercase P | P |
| Q | uppercase Q | Q |
| R | uppercase R | R |
| S | uppercase S | S |
| T | uppercase T | T |
| U | uppercase U | U |
| V | uppercase V | V |
| W | uppercase W | W |
| X | uppercase X | X |
| Y | uppercase Y | Y |
| Z | uppercase Z | Z |
| [ | left square bracket | [ |
| backslash | \ | |
| ] | right square bracket | ] |
| ^ | caret | ^ |
| _ | underscore | _ |
| ` | grave accent | ` |
| a | lowercase a | a |
| b | lowercase b | b |
| c | lowercase c | c |
| d | lowercase d | d |
| e | lowercase e | e |
| f | lowercase f | f |
| g | lowercase g | g |
| h | lowercase h | h |
| i | lowercase i | i |
| j | lowercase j | j |
| k | lowercase k | k |
| l | lowercase l | l |
| m | lowercase m | m |
| n | lowercase n | n |
| o | lowercase o | o |
| p | lowercase p | p |
| q | lowercase q | q |
| r | lowercase r | r |
| s | lowercase s | s |
| t | lowercase t | t |
| u | lowercase u | u |
| v | lowercase v | v |
| w | lowercase w | w |
| x | lowercase x | x |
| y | lowercase y | y |
| z | lowercase z | z |
| { | left curly brace | { |
| | | vertical bar | | |
| } | right curly brace | } |
| ~ | tilde | ~ |
7-BIT ASCII Device Control Characters
7位ASCII设备控制字符
ASCII device control characters were originally designed to control hardware devices like printers and tape drives. These characters have nothing to do inside any HTML document.
ASCII设备控制字符最初是用于控制硬件设备的，如：打印机、录音设备。这个字符不属于HTML文档。
| 结果 | 描述 | 实体数 |
|---|---|---|
| NUL | null character | � |
| SOH | start of header |  |
| STX | start of text |  |
| ETX | end of text |  |
| EOT | end of transmission |  |
| ENQ | enquiry |  |
| ACK | acknowledge |  |
| BEL | bell (ring) |  |
| BS | backspace |  |
| HT | horizontal tab | 	 |
| LF | line feed | |
| VT | vertical tab |  |
| FF | form feed |  |
| CR | carriage return | |
| SO | shift out |  |
| SI | shift in |  |
| DLE | data link escape |  |
| DC1 | device control 1 |  |
| DC2 | device control 2 |  |
| DC3 | device control 3 |  |
| DC4 | device control 4 |  |
| NAK | negative acknowledge |  |
| SYN | synchronize |  |
| ETB | end transmission block |  |
| CAN | cancel |  |
| EM | end of medium |  |
| SUB | substitute |  |
| ESC | escape |  |
| FS | file separator |  |
| GS | group separator |  |
| RS | record separator |  |
| US | unit separator |  |
| DEL | delete (rubout) |  |
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