标准ascii码字符集共有几个编码
标准ascii码字符集共有128个编码,范围从0到127。标准ASCII码是一种字符编码标准,定义了128个字符的编码,包括英文字母、数字、标点符号和一些控制字符等,每个字符都对应一个唯一的ASCII码值。0到31是控制字符,用于控制设备和通信协议,32到126是可打印字符,包括英文字母、数字、标点符号和一些特殊字符,127是删除字符,通常不被使用等等。
本教程操作系统:Windows10系统、Dell G3电脑。
标准ASCII码(American Standard Code for Information Interchange)是一种字符编码标准,定义了128个字符的编码,包括英文字母、数字、标点符号和一些控制字符等。每个字符都对应一个唯一的ASCII码值。
标准ASCII码字符集共有128个编码,范围从0到127。其中,0到31是控制字符,用于控制设备和通信协议。32到126是可打印字符,包括英文字母、数字、标点符号和一些特殊字符。127是删除字符,通常不被使用。
下面是标准ASCII码字符集的编码表:
二进制 | 十进制 | 十六进制 | 字符/缩写 | 解释 |
0 | 0 | 0 | NUL (NULL) | 空字符 |
1 | 1 | 1 | SOH (Start Of Headling) | 标题开始 |
10 | 2 | 2 | STX (Start Of Text) | 正文开始 |
11 | 3 | 3 | ETX (End Of Text) | 正文结束 |
100 | 4 | 4 | EOT (End Of Transmission) | 传输结束 |
101 | 5 | 5 | ENQ (Enquiry) | 请求 |
110 | 6 | 6 | ACK (Acknowledge) | 回应/响应/收到通知 |
111 | 7 | 7 | BEL (Bell) | 响铃 |
1000 | 8 | 8 | BS (Backspace) | 退格 |
1001 | 9 | 9 | HT (Horizontal Tab) | 水平制表符 |
1010 | 10 | 0A | LF/NL(Line Feed/New Line) | 换行键 |
1011 | 11 | 0B | VT (Vertical Tab) | 垂直制表符 |
1100 | 12 | 0C | FF/NP (Form Feed/New Page) | 换页键 |
1101 | 13 | 0D | CR (Carriage Return) | 回车键 |
1110 | 14 | 0E | SO (Shift Out) | 不用切换 |
1111 | 15 | 0F | SI (Shift In) | 启用切换 |
10000 | 16 | 10 | DLE (Data Link Escape) | 数据链路转义 |
10001 | 17 | 11 | DC1/XON | 设备控制1/传输开始 |
(Device Control 1/Transmission On) | ||||
10010 | 18 | 12 | DC2 (Device Control 2) | 设备控制2 |
10011 | 19 | 13 | DC3/XOFF | 设备控制3/传输中断 |
(Device Control 3/Transmission Off) | ||||
10100 | 20 | 14 | DC4 (Device Control 4) | 设备控制4 |
10101 | 21 | 15 | NAK (Negative Acknowledge) | 无响应/非正常响应/拒绝接收 |
10110 | 22 | 16 | SYN (Synchronous Idle) | 同步空闲 |
10111 | 23 | 17 | ETB (End of Transmission Block) | 传输块结束/块传输终止 |
11000 | 24 | 18 | CAN (Cancel) | 取消 |
11001 | 25 | 19 | EM (End of Medium) | 已到介质末端/介质存储已满/介质中断 |
11010 | 26 | 1A | SUB (Substitute) | 替补/替换 |
11011 | 27 | 1B | ESC (Escape) | 逃离/取消 |
11100 | 28 | 1C | FS (File Separator) | 文件分割符 |
11101 | 29 | 1D | GS (Group Separator) | 组分隔符/分组符 |
11110 | 30 | 1E | RS (Record Separator) | 记录分离符 |
11111 | 31 | 1F | US (Unit Separator) | 单元分隔符 |
100000 | 32 | 20 | (Space) | 空格 |
100001 | 33 | 21 | ! | |
100010 | 34 | 22 | " | |
100011 | 35 | 23 | # | |
100100 | 36 | 24 | $ | |
100101 | 37 | 25 | % | |
100110 | 38 | 26 | & | |
100111 | 39 | 27 | ' | |
101000 | 40 | 28 | ( | |
101001 | 41 | 29 | ) | |
101010 | 42 | 2A | * | |
101011 | 43 | 2B | + | |
101100 | 44 | 2C | , | |
101101 | 45 | 2D | - | |
101110 | 46 | 2E | . | |
101111 | 47 | 2F | / | |
110000 | 48 | 30 | 0 | |
110001 | 49 | 31 | 1 | |
110010 | 50 | 32 | 2 | |
110011 | 51 | 33 | 3 | |
110100 | 52 | 34 | 4 | |
110101 | 53 | 35 | 5 | |
110110 | 54 | 36 | 6 | |
110111 | 55 | 37 | 7 | |
111000 | 56 | 38 | 8 | |
111001 | 57 | 39 | 9 | |
111010 | 58 | 3A | : | |
111011 | 59 | 3B | ; | |
111100 | 60 | 3C | < | |
111101 | 61 | 3D | = | |
111110 | 62 | 3E | > | |
111111 | 63 | 3F | ? | |
1000000 | 64 | 40 | @ | |
1000001 | 65 | 41 | A | |
1000010 | 66 | 42 | B | |
1000011 | 67 | 43 | C | |
1000100 | 68 | 44 | D | |
1000101 | 69 | 45 | E | |
1000110 | 70 | 46 | F | |
1000111 | 71 | 47 | G | |
1001000 | 72 | 48 | H | |
1001001 | 73 | 49 | I | |
1001010 | 74 | 4A | J | |
1001011 | 75 | 4B | K | |
1001100 | 76 | 4C | L | |
1001101 | 77 | 4D | M | |
1001110 | 78 | 4E | N | |
1001111 | 79 | 4F | O | |
1010000 | 80 | 50 | P | |
1010001 | 81 | 51 | Q | |
1010010 | 82 | 52 | R | |
1010011 | 83 | 53 | S | |
1010100 | 84 | 54 | T | |
1010101 | 85 | 55 | U | |
1010110 | 86 | 56 | V | |
1010111 | 87 | 57 | W | |
1011000 | 88 | 58 | X | |
1011001 | 89 | 59 | Y | |
1011010 | 90 | 5A | Z | |
1011011 | 91 | 5B | [ | |
1011100 | 92 | 5C | \ | |
1011101 | 93 | 5D | ] | |
1011110 | 94 | 5E | ^ | |
1011111 | 95 | 5F | _ | |
1100000 | 96 | 60 | ` | |
1100001 | 97 | 61 | a | |
1100010 | 98 | 62 | b | |
1100011 | 99 | 63 | c | |
1100100 | 100 | 64 | d | |
1100101 | 101 | 65 | e | |
1100110 | 102 | 66 | f | |
1100111 | 103 | 67 | g | |
1101000 | 104 | 68 | h | |
1101001 | 105 | 69 | i | |
1101010 | 106 | 6A | j | |
1101011 | 107 | 6B | k | |
1101100 | 108 | 6C | l | |
1101101 | 109 | 6D | m | |
1101110 | 110 | 6E | n | |
1101111 | 111 | 6F | o | |
1110000 | 112 | 70 | p | |
1110001 | 113 | 71 | q | |
1110010 | 114 | 72 | r | |
1110011 | 115 | 73 | s | |
1110100 | 116 | 74 | t | |
1110101 | 117 | 75 | u | |
1110110 | 118 | 76 | v | |
1110111 | 119 | 77 | w | |
1111000 | 120 | 78 | x | |
1111001 | 121 | 79 | y | |
1111010 | 122 | 7A | z | |
1111011 | 123 | 7B | { | |
1111100 | 124 | 7C | | | |
1111101 | 125 | 7D | } | |
1111110 | 126 | 7E | ~ | |
1111111 | 127 | 7F | DEL (Delete) | 删除 |
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ASCII (American Standard Code for Information Interchange, American Standard Code for Information Interchange) is a set of character encodings based on Latin letters. It contains a total of 128 characters and can be stored in one byte. It is equivalent to the international standard ISO/IEC 646 . The ASCII specification was first published in 1967 and last updated in 1986.

The ASCII code value of d is 100; because the ASCII code value of a is the hexadecimal number 61H, that is, the decimal value is 97, and d is the last three digits of a, then the ASCII code value of d is "97+3=100" ;ASCII code uses a specified 7-bit or 8-bit binary number combination to represent 128 or 256 possible characters.

An ASCII code occupies one byte. ASCII code is a coding standard used to represent characters. It uses 7-bit binary numbers to represent 128 different characters, including letters, numbers, punctuation marks, special characters, etc. A byte is the basic unit of computer storage unit. It consists of 8 binary bits. Each binary bit can be 0 or 1. One byte can represent 256 different values, so it can represent all characters in the ASCII code.

ascii code is a computer coding system based on Latin letters; ascii code is the abbreviation of "American Standard Code for Information Interchange". It is mainly used to display modern English and other Western European languages. It is the most common information exchange standard, using the designated 7 bit or 8-bit binary number combination to represent 128 or 256 possible characters.

Yes, the ASCII code of one character occupies 1 byte of storage space. In the ASCII code table, the order from small to large code values is: control characters, numeric characters, uppercase English letters, and lowercase English letters. ASCII code is a Western encoding, mainly used to display modern English and other Western European languages. One code occupies one byte.

ASCII code is "American Standard Code for Information Interchange", American Standard Code for Information Interchange: 1, 0, NUL; 2, 1, SOH; 3, 2, STX; 4, 3, ETX, etc. ASCII code includes many other characters and symbols. Each character corresponds to a unique integer value, and these integer values are called ASCII codes.

The differences between unicode and ascii include different encoding ranges, different storage spaces, and different compatibility. Detailed introduction: 1. The encoding range is different. The encoding range of ASCII is 0-127, which is mainly used to represent English letters. The encoding range of Unicode is much wider and can represent almost all language characters; 2. The storage space is different. ASCII usually Use 1 byte to store a character, while unicode may use 2 or more bytes to store a character; 3. Different compatibility, etc.

The largest ascii code is 127. ASCII code is the American Standard Code for Information Interchange, a computer coding system based on the Latin alphabet, mainly used to display modern English and other Western European languages. The standard ASCII code uses 7 binary bits to represent one character, and there are 128 codes in total; 0 to 31 and 127 are control characters or special communication characters (the rest are displayable characters), 32 to 126 are characters, and 65 to 90 are There are 26 uppercase English letters, numbers 97 to 122 are lowercase English letters, and the rest are some punctuation marks, arithmetic symbols, etc.