search
HomeCommon ProblemWhat does double byte mean?

Double-byte characters occupy two bytes, that is, double-byte characters contain two bytes and a total of 16 bits, while Chinese characters occupy two bytes; single-byte characters only occupy one word , are English characters.

What does double byte mean?

#The operating environment of this article: Windows 7 system, Dell G3 computer.

What does double byte mean?

Single byte refers to only one word, which is an English character. Double words occupy two bytes, and Chinese characters occupy two bytes.

The English word for a single byte is byte; the bit is the smallest numerical unit, and its English word is bit.

A byte contains 8 bits. Usually the ASCII code that computer beginners come into contact with is a single-byte character. Since the computer is binary, 1 bit can only be expressed as 0 or 1. , those 8 bits (generally from right to left) can be represented by different values ​​from 0 to 127 (2 to the 8th power minus 1).

Double-byte characters contain two bytes for a total of 16 bits.

Generally, it is easy to understand that English letters are single-byte characters, while Chinese characters are double-byte characters. Because English letters, numbers, symbols, etc. can be represented by 128 different numerical values, but too many Chinese characters cannot be represented, so it needs to be expanded to double bytes.

For more related knowledge, please visit the FAQ column!

The above is the detailed content of What does double byte mean?. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function