What is the difference between a character and a byte

(i) Definition of "byte"

byte is a unit of measurement that represents the amount of data, a unit of measurement used by computer information technology to measure storage capacity.

(ii) Definition of "character"

characters are words and symbols used in the computer, such as 1, 2, 3, A, B, C, ~ #￥%......-* ()--+, and so on.

(iii) "byte" and "character"

They are completely not a concept of the plane, so there is no "difference" between the two. In different encodings, the correspondence between characters and bytes is different:

① In ASCII code, an English letter (case-insensitive) occupies a byte of space, a Chinese character occupies two bytes of space. A binary number sequence, in the computer as a digital unit, generally 8-bit binary number, converted to decimal. The minimum value is 0, the maximum value is 255.

② In UTF-8 encoding, an English character is equal to one byte, and one Chinese (including traditional) is equal to three bytes.

③ In Unicode encoding, one English is equal to two bytes, and one Chinese (including traditional) equals two bytes.

Symbol: English punctuation is a byte, Chinese punctuation is two bytes. Example: English period "." The size of 1 bytes, the Chinese period. "Takes up 2 bytes of size.

④ In UTF-16 encoding, an alphabetic character or a Chinese character store requires 2 bytes (some Chinese characters stored in a Unicode expansion area need 4 bytes).

⑤ In UTF-32 encoding, the storage of any character in the world requires 4 bytes.