Home Common Problem Several common encoding methods

Several common encoding methods

Oct 24, 2023 am 10:09 AM
coding

Common encoding methods include ASCII encoding, Unicode encoding, UTF-8 encoding, UTF-16 encoding, GBK encoding, etc. Detailed introduction: 1. ASCII encoding is the earliest character encoding standard, using 7-bit binary numbers to represent 128 characters, including English letters, numbers, punctuation marks, control characters, etc.; 2. Unicode encoding is a method used to represent all characters in the world The standard encoding method of characters, which assigns a unique digital code point to each character; 3. UTF-8 encoding, etc.

Several common encoding methods

Common encoding methods include:

  1. ASCII encoding (American Standard Code for Information Interchange): ASCII encoding is The earliest character encoding standard uses 7-bit binary numbers to represent 128 characters, including English letters, numbers, punctuation marks, and control characters.

  2. Unicode encoding: Unicode encoding is a standard encoding used to represent all characters in the world. It assigns a unique numerical code point to each character. Unicode encoding can use different storage methods, such as UTF-8, UTF-16, and UTF-32.

  3. UTF-8 encoding (Unicode Transformation Format 8-bit): UTF-8 is a variable-length Unicode encoding method that uses 8-bit binary numbers to represent characters and can represent the world all characters on. UTF-8 encoding is widely used on the Internet. It is compatible with ASCII encoding. It uses one byte to represent English letters and common symbols, and uses multiple bytes to represent other characters.

  4. UTF-16 encoding: UTF-16 is a fixed-length Unicode encoding that uses 16-bit binary numbers to represent characters. UTF-16 encoding can represent all characters within the Unicode code point range, but some less commonly used characters need to be represented by multiple bytes.

  5. GBK encoding (Guo Biao Kuai Jie Ma): GBK is the Chinese character set encoding method developed by the China National Bureau of Standards. It is compatible with ASCII encoding and uses two bytes to represent Chinese characters. .

These encoding methods are used in different scenarios and needs. The specific encoding method chosen depends on the application requirements and compatibility. When using encoding methods, ensure that the encoding methods are unified to avoid garbled characters or character conversion errors.

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