The ASCII code with the largest value is ??????
The largest ASCII value is y.
ASCII uses a specified combination of 7- or 8-bit binary numbers to represent 128 or 256 possible characters. The standard ASCII code, also called the base ASCII code, uses a 7-bit binary number (with the remaining 1 bit of binary as 0) to represent all upper- and lower-case letters, the numbers 0 through 9, punctuation marks, and special control characters used in American English.
Which:
0 to 31 and 127 (a total of 33) are control characters or communication-specific characters (the rest are displayable characters), such as the control characters: LF (Line Feed), CR (Carriage Return), FF (Form Feed), DEL (Delete), BS (Backspace), and BEL (Ringing Bell).
32 to 126 (a total of 95) are characters (32 is a space), of which 48 to 57 are 0 to 9 ten Arabic numerals.
65 to 90 are 26 uppercase letters of the alphabet, 97 to 122 are 26 lowercase letters of the alphabet, and the rest are some punctuation marks, arithmetic symbols and so on.
Extended information:
In standard ASCII, its highest bit (b7) is used as the parity bit. The so-called parity check is a method used to check for errors during code transmission, and is generally divided into two types: odd and even.
Odd-check rule: the correct code in a byte of the number of 1 must be odd, if not odd, in the highest bit b7 add 1; even-check rule: the correct code in a byte of the number of 1 must be even, if not even, in the highest bit b7 add 1.
The last 128 is known as the Extended ASCII code. Many x86-based systems support the use of extended (or “high”) ASCII. extended ASCII allows bit 8 of each character to be used to determine an additional 128 special symbol characters, foreign letters, and graphic symbols.
ASCII is primarily used to display modern English and other Western European languages. It is the most common single-byte coding system in use today and is equivalent to the international standard ISO/IEC646.
Baidu Encyclopedia-ASCII
Keyboard keys corresponding to the ASCII code value (including the mouse and keyboard all the keys)
Keyboard keys corresponding to the ASCII code value (including the mouse and keyboard all the keys)
Keyboard and mouse keys corresponding to the ASCII code value is as follows:
This is the keyboard and the mouse on the keys corresponding to the ASCII code, some of the support for macro programming of the keyboard and the mouse above the keys do not have an exclusive ASCII code, the specific corresponding to the ASCII code depends on the programming object. The ASCII code for each key depends on the object being programmed.
Expanded information:
These are the ASCII codes for the keys on some keyboards and mice that support macro programming.
What are the ascii code values for upper and lower case letters and numbers
a-z: 97-122
A-Z: 65-90
0-9: 48-57
SCII (AmericanStandardCodeforInformationInterchange, the American Standard Code for Information Interchange) is a system of computer coding based on the Latin alphabet, primarily used to display modern English and other Western European languages. It is the most common single-byte coding system in use today, and is equivalent to the international standard ISO/IEC646.
ASCII table: