Unicode的空白字符有哪些

Unicode characters with White_Space property

name	Hex	Dec	Script	Block	General category	Notes
character tabulation	U+0009	9	Common	Basic Latin	Other, control	HT, Horizontal Tab. HTML/XML named entity: , LaTeX: ‘\tab’
line feed	U+000A	10	Common	Basic Latin	Other, control	LF, Line feed. HTML/XML named entity:
line tabulation	U+000B	11	Common	Basic Latin	Other, control	VT, Vertical Tab
form feed	U+000C	12	Common	Basic Latin	Other, control	FF, Form feed
carriage return	U+000D	13	Common	Basic Latin	Other, control	CR, Carriage return
space	U+0020	32	Common	Basic Latin	Separator, space	Most common (normal ASCII space)
next line	U+0085	133	Common	Latin-1 Supplement	Other, control	NEL, Next line
no-break space	U+00A0	160	Common	Latin-1 Supplement	Separator, space	Non-breaking space: identical to U+0020, but not a point at which a line may be broken. HTML/XML named entity:  , LaTeX: '\ ’
ogham space mark	U+1680	5760	Ogham	Ogham	Separator, space	Used for interword separation in Ogham text. Normally a vertical line in vertical text or a horizontal line in horizontal text, but may also be a blank space in “stemless” fonts. Requires an Ogham font.
en quad	U+2000	8192	Common	General Punctuation	Separator, space	Width of one en. U+2002 is canonically equivalent to this character; U+2002 is preferred.
em quad	U+2001	8193	Common	General Punctuation	Separator, space	Also known as “mutton quad”. Width of one em. U+2003 is canonically equivalent to this character; U+2003 is preferred.
en space	U+2002	8194	Common	General Punctuation	Separator, space	Also known as “nut”. Width of one en. U+2000 En Quad is canonically equivalent to this character; U+2002 is preferred. HTML/XML named entity:  , LaTeX: ‘\enspace’
em space	U+2003	8195	Common	General Punctuation	Separator, space	Also known as “mutton”. Width of one em. U+2001 Em Quad is canonically equivalent to this character; U+2003 is preferred. HTML/XML named entity:  , LaTeX: ‘\quad’
three-per-em space	U+2004	8196	Common	General Punctuation	Separator, space	Also known as “thick space”. One third of an em wide. HTML/XML named entity:
four-per-em space	U+2005	8197	Common	General Punctuation	Separator, space	Also known as “mid space”. One fourth of an em wide. HTML/XML named entity:
six-per-em space	U+2006	8198	Common	General Punctuation	Separator, space	One sixth of an em wide. In computer typography, sometimes equated to U+2009.
figure space	U+2007	8199	Common	General Punctuation	Separator, space	Figure space. In fonts with monospaced digits, equal to the width of one digit. HTML/XML named entity:
punctuation space	U+2008	8200	Common	General Punctuation	Separator, space	As wide as the narrow punctuation in a font, i.e. the advance width of the period or comma.[2] HTML/XML named entity:
thin space	U+2009	8201	Common	General Punctuation	Separator, space	One-fifth (sometimes one-sixth) of an em wide. Recommended for use as a thousands separator for measures made with SI units. Unlike U+2002 to U+2008, its width may get adjusted in typesetting.[3] HTML/XML named entity:  ; LaTeX: ‘,’
hair space	U+200A	8202	Common	General Punctuation	Separator, space	Thinner than a thin space. HTML/XML named entity:   (does not work in all browsers)
line separator	U+2028	8232	Common	General Punctuation	Separator, line
paragraph separator	U+2029	8233	Common	General Punctuation	Separator, paragraph
narrow no-break space	U+202F	8239	Common	General Punctuation	Separator, space	Narrow no-break space. Similar in function to U+00A0 No-Break Space. When used with Mongolian, its width is usually one third of the normal space; in other context, its width sometimes resembles that of the Thin Space (U+2009).
medium mathematical space	U+205F	8287	Common	General Punctuation	Separator, space	MMSP. Used in mathematical formulae. Four-eighteenths of an em.[4] In mathematical typography, the widths of spaces are usually given in integral multiples of an eighteenth of an em, and 4/18 em may be used in several situations, for example between the a and the + and between the + and the b in the expression a + b.[5] HTML/XML named entity:
ideographic space	U+3000	12288	Common	CJK Symbols and Punctuation	Separator, space	As wide as a CJK character cell (fullwidth). Used, for example, in tai tou.

Related Unicode characters without White_Space property

name	Hex	Dec	Script	Block	General category	Notes
mongolian vowel separator	U+180E	6158	Mongolian	Mongolian	Other, Format	MVS. A narrow space character, used in Mongolian to cause the final two characters of a word to take on different shapes.[6] It is no longer classified as space character (i.e. in Zs category) in Unicode 6.3.0, even though it was in previous versions of the standard.
zero width space	U+200B	8203	?	General Punctuation	Other, Format	ZWSP, zero-width space. Used to indicate word boundaries to text processing systems when using scripts that do not use explicit spacing. It is similar to the soft hyphen, with the difference that the latter is used to indicate syllable boundaries, and should display a visible hyphen when the line breaks at it. HTML/XML named entity: ​
zero width non-joiner	U+200C	8204	?	General Punctuation	Other, Format	ZWNJ, zero-width non-joiner. When placed between two characters that would otherwise be connected, a ZWNJ causes them to be printed in their final and initial forms, respectively. HTML/XML named entity: ‌
zero width joiner	U+200D	8205	?	General Punctuation	Other, Format	ZWJ, zero-width joiner. When placed between two characters that would otherwise not be connected, a ZWJ causes them to be printed in their connected forms. HTML/XML named entity: ‍
word joiner	U+2060	8288	?	General Punctuation	Other, Format	WJ, word joiner. Similar to U+200B, but not a point at which a line may be broken. HTML/XML named entity: ⁠
zero width non-breaking space	U+FEFF	65279	?	Arabic Presentation Forms-B	Other, Format	Zero-width non-breaking space. Used primarily as a Byte Order Mark. Use as an indication of non-breaking is deprecated as of Unicode 3.2; see U+2060 instead.