It is convenient to query the characters corresponding to the ASCII code: create a new text document, press and hold ALT + the code value to be queried (note, here is a decimal), and release it to display the corresponding characters. For example: Press and hold ALT+97, it will display 'a'.
Standard ASCII table
| Bin | Dec | Hex | Abbreviation/Character | explain |
| 00000000 | 0 | 00 | NUL(null) | null character |
| 00000001 | 1 | 01 | SOH(start of headling) | title starts |
| 00000010 | 2 | 02 | STX (start of text) | text begins |
| 00000011 | 3 | 03 | ETX (end of text) | end of text |
| 00000100 | 4 | 04 | EOT (end of transmission) | end of transmission |
| 00000101 | 5 | 05 | ENQ (enquiry) | ask |
| 00000110 | 6 | 06 | ACK (acknowledge) | get notified |
| 00000111 | 7 | 07 | BEL (bell) | bell |
| 00001000 | 8 | 08 | BS (backspace) | backspace |
| 00001001 | 9 | 09 | HT (horizontal tab) | horizontal tab |
| 00001010 | 10 | 0A | LF (NL line feed, new line) | newline key |
| 00001011 | 11 | 0B | VT (vertical tab) | vertical tab |
| 00001100 | 12 | 0C | FF (NP form feed, new page) | form key |
| 00001101 | 13 | 0D | CR (carriage return) | enter |
| 00001110 | 14 | 0E | SO (shift out) | no need to switch |
| 00001111 | 15 | 0F | SI (shift in) | Enable toggle |
| 00010000 | 16 | 10 | DLE (data link escape) | data link escape |
| 00010001 | 17 | 11 | DC1 (device control 1) | Device Control 1 |
| 00010010 | 18 | 12 | DC2 (device control 2) | Device Control 2 |
| 00010011 | 19 | 13 | DC3 (device control 3) | Device Control 3 |
| 00010100 | 20 | 14 | DC4 (device control 4) | Device Control 4 |
| 00010101 | 21 | 15 | NAK (negative acknowledge) | refuse to accept |
| 00010110 | 22 | 16 | SYN (synchronous idle) | Sync idle |
| 00010111 | 23 | 17 | ETB (end of trans. block) | end of transfer block |
| 00011000 | 24 | 18 | CAN (cancel) | Cancel |
| 00011001 | 25 | 19 | EM (end of medium) | media interruption |
| 00011010 | 26 | 1A | SUB (substitute) | substitute |
| 00011011 | 27 | 1B | ESC (escape) | overflow |
| 00011100 | 28 | 1C | FS (file separator) | file separator |
| 00011101 | 29 | 1D | GS (group separator) | grouping character |
| 00011110 | 30 | 1E | RS (record separator) | record separator |
| 00011111 | 31 | 1F | US (unit separator) | unit separator |
| 00100000 | 32 | 20 | (space) | space |
| 00100001 | 33 | 21 | ! | |
| 00100010 | 34 | 22 | " | |
| 00100011 | 35 | 23 | # | |
| 00100100 | 36 | 24 | $ | |
| 00100101 | 37 | 25 | % | |
| 00100110 | 38 | 26 | & | |
| 00100111 | 39 | 27 | ' | |
| 00101000 | 40 | 28 | ( | |
| 00101001 | 41 | 29 | ) | |
| 00101010 | 42 | 2A | * | |
| 00101011 | 43 | 2B | + | |
| 00101100 | 44 | 2C | , | |
| 00101101 | 45 | 2D | - | |
| 00101110 | 46 | 2E | . | |
| 00101111 | 47 | 2F | / | |
| 00110000 | 48 | 30 | 0 |