ASCII码对照表如下：
| 十进制 | 十六进制 | 字符 |
| ------ | -------- | ---- |
| 0 | 00 | NUL |
| 1 | 01 | SOH |
| 2 | 02 | STX |
| 3 | 03 | ETX |
| 4 | 04 | EOT |
| 5 | 05 | ENQ |
| 6 | 06 | ACK |
| 7 | 07 | BEL |
| 8 | 08 | BS |
| 9 | 09 | HT |
| 10 | 0A | LF |
| 11 | 0B | VT |
| 12 | 0C | FF |
| 13 | 0D | CR |
| 14 | 0E | SO |
| 15 | 0F | SI |
| 16 | 10 | DLE |
| 17 | 11 | DC1 |
| 18 | 12 | DC2 |
| 19 | 13 | DC3 |
| 20 | 14 | DC4 |
| 21 | 15 | NAK |
| 22 | 16 | SYN |
| 23 | 17 | ETB |
| 24 | 18 | CAN |
| 25 | 19 | EM |
| 26 | 20 | SUB |
| 27 | 21 | ESC |
| 28 | 22 | FS |
| 29 | 23 | GS |
| 30 | 24 | RS |
| 31 | 25 | US |
| 32 | 20 | 空格 |
| 33 | 21 | !|
| 34 | 22 | "|
| 35 | 23 | |
| 36 | 24 | $|
| 37 | 25 | %|
| 38 | 26 | &|
| 39 | 27 | '|
| 40 | 28 | （|
| 41 | 29 | ）|
| 42 | 30 | *|
| 43 | 31 | +|
| 44 | 32 | ,|
| 45 | 33 | -|
| 46 | 34 | .|
| 47 | 35 | /|
| 48 | 36 | 0|
| 49 | 37 | 1|
| 50 | 38 | 2|
| 51 | 39 | 3|
| 52 | 40 | 4|
| 53 | 41 | 5|
| 54 | 42 | 6|
| 55 | 43 | 7|
| 56 | 44 | 8|
| 57 | 45 | 9|
| 58 | 46 | :|
| 59 | 47 | ；|
| 60 | 48 | <|
| 61 | 49 | =|
| 62 | 50 | >|
| 63 | 51 | ？|
| 64 | 52 | @|
| 65 | 53 | A