what is a character set
- The way the computer records the text is recorded by the character set serial number;
- The storage of each character is realized by its serial number in the character set, including spaces, line breaks, punctuation, etc.;
- The earliest character set is ASCII, which only includes upper and lower case letters, Arabic numerals, and some basic symbols;
- With the popularization of computers in various countries around the world, due to the multitude of languages in the world, various character sets adapted to different languages have been born;
- Character sets specially adapted to Chinese include GBK, GB2312, etc. For example, the Chinese version of Windows operating system uses the GBK character set;
- But no matter what character set, ASCII is completely included in the first 128 bits by default;
- Due to the different character sets used in different hosts, serious data transmission garbled problems are caused;
- The UTF-8 character set contains common characters in various languages of the world, and is gradually becoming a tacit industry standard in a sense;
ASCII character set
- American Standard Code for Information Interchange;
- Including the most basic 128 characters, it is the earliest and most basic character set;
- The content includes upper and lower case letters, Arabic numerals, and some common symbols;
- The exchange of serial number and character can use two built-in functions of chr(order) and ord(character);
- ASCII code table
