HTML 字符实体备忘清单 & html-char cheatsheet & LeoStar

HTML 特殊字符

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`"`	"	`"`	引号	u+0022 ISOnum	\0022	\42
`&num;`	#	`#`	数字符号	u+0023 ISOnum	\0023	\43
`&dollar;`	$	`$`	美元符号	u+0024 ISOnum	\0024	\44
`&percnt;`	%	`%`	百分号	u+0025 ISOnum	\0025	\45
`&`	&	`&`	和号	u+0026 ISOnum	\0026	\46
`'`	'	`'`	撇号	u+0027 ISOnum	\0027	\47
`(`	(	`(`	左括号	u+0028 ISOnum	\0028	\50
`)`	)	`)`	右括号	u+0029 ISOnum	\0029	\51
`&ast;`	*	`*`	星号	u+002A ISOnum	\002a	\52
`+`	+	`+`	加号	u+002B ISOnum	\002b	\53
`,`	,	`,`	逗号	u+002C ISOnum	\002c	\54
`−`	-	`-`	连字符减号	u+002D ISOnum	\002d	\55
`&period;`	.	`.`	句号	u+002E ISOnum	\002e	\56
`/`	/	`/`	固相线	u+002F ISOnum	\002f	\57
`&colon;`	:	`:`	冒号	u+003A ISOnum	\003a	\72
`&semi;`	;	`;`	分号	u+003B ISOnum	\003b	\73
`<`	<	`<`	少于	u+003C ISOnum	\003c	\74
`=`	=	`=`	等于	u+003D ISOnum	\003d	\75
`>`	>	`>`	大于号	u+003E ISOnum	\003e	\76
`&quest;`	?	`?`	问号	u+003F ISOnum	\003f	\77
`&commat;`	@	`@`	在标志处	u+0040 ISOnum	\0040	\100
`[`	[	`[`	左方括号	u+005B ISOnum	\005b	\133
`\`	\	`\`	反斜杠	u+005C ISOnum	\005c	\134
`]`	]	`]`	右方括号	u+005D ISOnum	\005d	\135
`&Hat;`	^	`^`	抑扬顿挫	u+005E ISOnum	\005e	\136
`&lowbar;`	_	`_`	低线	u+005F ISOnum	\005f	\137
`&grave;`	`	```	重音	u+0060 ISOnum	\0060	\u0060
`{`	{	`{`	左大括号	u+007b ISOnum	\007b	\173
`\|`	\|	`\|`	竖线	u+007c ISOnum	\007c	\174
`}`	}	`}`	右大括号	u+007d ISOnum	\007d	\175
	~	`~`	波浪号	u+007e ISOnum	\007e	\176

HTML 拉丁语

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
` `		` `	no-break space	%A0	\00a0	\240
`¡`	¡	`¡`	inverted exclamation mark	%A1	\00a1	\241
`¢`	¢	`¢`	cent sign	%A2	\00a2	\242
`£`	£	`£`	pound sterling sign	%A3	\00a3	\243
`¤`	¤	`¤`	general currency sign	%A4	\00a4	\244
`¥`	¥	`¥`	yen sign	%A5	\00a5	\245
`₹`	₹	`₹`	Indian Rupee (INR) sign	U+20B9	\20B9	\u20B9
`¦`	¦	`¦`	broken (vertical) bar	%A6	\00a6	\246
`§`	§	`§`	section sign	%A7	\00a7	\247
`¨`	¨	`¨`	umlaut (dieresis)	%A8	\00a8	\250
`©`	©	`©`	copyright sign	%A9	\00a9	\251
`ª`	ª	`ª`	ordinal indicator, feminine	%AA	\00aa	\252
`«`	«	`«`	angle quotation mark, left	%AB	\00ab	\253
`¬`	¬	`¬`	not sign	%AC	\00ac	\254
``		``	soft hyphen	%AD	\00ad	\255
`®`	®	`®`	registered sign	%AE	\00ae	\256
`¯`	¯	`¯`	macron	%AF	\00af	\257
`°`	°	`°`	degree sign	%B0	\00b0	\260
`±`	±	`±`	plus-or-minus sign	%B1	\00b1	\261
`²`	²	`²`	superscript two	%B2	\00b2	\262
`³`	³	`³`	superscript three	%B3	\00b3	\263
`´`	´	`´`	acute accent	%B4	\00b4	\264
`µ`	µ	`µ`	micro sign	%B5	\00b5	\265
`¶`	¶	`¶`	pilcrow (paragraph sign)	%B6	\00b6	\266
`·`	·	`·`	middle dot	%B7	\00b7	\267
`¸`	¸	`¸`	cedilla	%B8	\00b8	\270
`¹`	¹	`¹`	superscript one	%B9	\00b9	\271
`º`	º	`º`	ordinal indicator, masculine	%BA	\00ba	\272
`»`	»	`»`	angle quotation mark, right	%BB	\00bb	\273
`¼`	¼	`¼`	fraction one-quarter	%BC	\00bc	\274
`½`	½	`½`	fraction one-half	%BD	\00bd	\275
`¾`	¾	`¾`	fraction three-quarters	%BE	\00be	\276
`¿`	¿	`¿`	inverted question mark	%BF	\00bf	\277
`À`	À	`À`	capital A, grave accent	%C0	\00c0	\300
`Á`	Á	`Á`	capital A, acute accent	%C1	\00c1	\301
`Â`	Â	`&#194 ;`	capital A, circumflex accent	%C2	\00c2	\302
`Ã`	Ã	`Ã`	capital A, tilde	%C3	\00c3	\303
`Ä`	Ä	`Ä`	capital A, dieresis or umlaut mark	%C4	\00c4	\304
`Å`	Å	`Å`	capital A, ring	%C5	\00c5	\305
`Æ`	Æ	`Æ`	capital AE diphthong (ligature)	%C6	\00c6	\306
`Ç`	Ç	`Ç`	capital C, cedilla	%C7	\00c7	\307
`È`	È	`È`	capital E, grave accent	%C8	\00c8	\310
`É`	É	`É`	capital E, acute accent	%C9	\00c9	\311
`Ê`	Ê	`Ê`	capital E, circumflex accent	%CA	\00ca	\312
`Ë`	Ë	`Ë`	capital E, dieresis or umlaut mark	%CB	\00cb	\313
`Ì`	Ì	`Ì`	capital I, grave accent	%CC	\00cc	\314
`Í`	Í	`Í`	capital I, acute accent	%CD	\00cd	\315
`Î`	Î	`Î`	capital I, circumflex accent	%CE	\00ce	\316
`Ï`	Ï	`Ï`	capital I, dieresis or umlaut mark	%CF	\00cf	\317
`Ð`	Ð	`Ð`	capital Eth, Icelandic	%D0	\00d0	\320
`Ñ`	Ñ	`Ñ`	capital N, tilde	%D1	\00d1	\321
`Ò`	Ò	`Ò`	capital O, grave accent	%D2	\00d2	\322
`Ó`	Ó	`Ó`	capital O, acute accent	%D3	\00d3	\323
`Ô`	Ô	`Ô`	capital O, circumflex accent	%D4	\00d4	\324
`Õ`	Õ	`Õ`	capital O, tilde	%D5	\00d5	\325
`Ö`	Ö	`Ö`	capital O, dieresis or umlaut mark	%D6	\00d6	\326
`×`	×	`×`	multiply sign	%D7	\00d7	\327
`Ø`	Ø	`Ø`	capital O, slash	%D8	\00d8	\330
`Ù`	Ù	`Ù`	capital U, grave accent	%D9	\00d9	\331
`Ú`	Ú	`Ú`	capital U, acute accent	%DA	\00da	\332
`Û`	Û	`Û`	capital U, circumflex accent	%DB	\00db	\333
`Ü`	Ü	`Ü`	capital U, dieresis or umlaut mark	%DC	\00dc	\334
`Ý`	Ý	`Ý`	capital Y, acute accent	%DD	\00dd	\335
`Þ`	Þ	`Þ`	capital THORN, Icelandic	%DE	\00de	\336
`ß`	ß	`ß`	small sharp s, German (sz ligature)	%DF	\00df	\337
`à`	à	`à`	small a, grave accent	%E0	\00e0	\340
`á`	á	`á`	small a, acute accent	%E1	\00e1	\341
`â`	â	`â`	small a, circumflex accent	%E2	\00e2	\342
`ã`	ã	`ã`	small a, tilde	%E3	\00e3	\343
`ä`	ä	`ä`	small a, dieresis or umlaut mark	%E4	\00e4	\344
`å`	å	`å`	small a, ring	%E5	\00e5	\345
`æ`	æ	`æ`	small ae diphthong (ligature)	%E6	\00e6	\346
`ç`	ç	`ç`	small c, cedilla	%E7	\00e7	\347
`è`	è	`è`	small e, grave accent	%E8	\00e8	\350
`é`	é	`é`	small e, acute accent	%E9	\00e9	\351
`ê`	ê	`ê`	small e, circumflex accent	%EA	\00ea	\352
`ë`	ë	`ë`	small e, dieresis or umlaut mark	%EB	\00eb	\353
`ì`	ì	`ì`	small i, grave accent	%EC	\00ec	\354
`í`	í	`í`	small i, acute accent	%ED	\00ed	\355
`î`	î	`î`	small i, circumflex accent	%EE	\00ee	\356
`ï`	ï	`ï`	small i, dieresis or umlaut mark	%EF	\00ef	\357
`ð`	ð	`ð`	small eth, Icelandic	%F0	\00f0	\360
`ñ`	ñ	`ñ`	small n, tilde	%F1	\00f1	\361
`ò`	ò	`ò`	small o, grave accent	%F2	\00f2	\362
`ó`	ó	`ó`	small o, acute accent	%F3	\00f3	\363
`ô`	ô	`ô`	small o, circumflex accent	%F4	\00f4	\364
`õ`	õ	`õ`	small o, tilde	%F5	\00f5	\365
`ö`	ö	`ö`	small o, dieresis or umlaut mark	%F6	\00f6	\366
`÷`	÷	`÷`	divide sign	%F7	\00f7	\367
`ø`	ø	`ø`	small o, slash	%F8	\00f8	\370
`ù`	ù	`ù`	small u, grave accent	%F9	\00f9	\371
`ú`	ú	`ú`	small u, acute accent	%FA	\00fa	\372
`û`	û	`û`	small u, circumflex accent	%FB	\00fb	\373
`ü`	ü	`ü`	small u, dieresis or umlaut mark	%FC	\00fc	\374
`ý`	ý	`ý`	small y, acute accent	%FD	\00fd	\375
`þ`	þ	`þ`	small thorn, Icelandic	%FE	\00fe	\376
`ÿ`	ÿ	`ÿ`	small y, dieresis or umlaut mark	%FF	\00ff	\377

HTML 拉丁文扩展

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`&OElig;`	Œ	`Œ`	latin capital ligature oe	u+0152 ISOlat2	\0152	\u0152
`&oelig;`	œ	`œ`	latin small ligature oe	u+0153 ISOlat2	\0153	\u0153
`&Scaron;`	Š	`Š`	latin capital letter s with caron	u+0160 ISOlat2	\0160	\u0160
`&scaron;`	š	`š`	latin small letter s with caron	u+0161 ISOlat2	\0161	\u0161
`&Yuml;`	Ÿ	`Ÿ`	latin capital letter y with diaeresis	u+0178 ISOlat2	\0178	\u0178
`&fnof;`	ƒ	`ƒ`	latin small f with hook	u+0192 ISOtech	\0192	\u0192

HTML 间距修饰符字母

HTML	Symbol	Numeric	Description	Hex	CSS (ISO)	JS (Octal)
`&circ;`	ˆ		modifier letter circumflex accent	u+02C6 ISOpub	\02c6	\u02c6
`&tilde;`	˜		small tilde	u+02DC ISOdia	\02dc	\u02dc

HTML 希腊语

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`Α`	Α	`Α`	greek capital letter alpha	u+0391	\0391	\u0391
`Β`	Β	`Β`	greek capital letter beta	u+0392	\0392	\u0392
`Γ`	Γ	`Γ`	greek capital letter gamma	u+0393 ISOgrk3	\0393	\u0395
`Δ`	Δ	`Δ`	greek capital letter delta	u+0394 ISOgrk3	\0394	\u0394
`Ε`	Ε	`Ε`	greek capital letter epsilon	u+0395	\0395	\u0395
`Ζ`	Ζ	`Ζ`	greek capital letter zeta	u+0396	\0396	\u0396
`Η`	Η	`Η`	greek capital letter eta	u+0397	\0397	\u0397
`Θ`	Θ	`Θ`	greek capital letter theta	u+0398 ISOgrk3	\0398	\u0398
`Ι`	Ι	`Ι`	greek capital letter iota	u+0399	\0399	\u0399
`Κ`	Κ	`Κ`	greek capital letter kappa	u+039A	\039a	\u039a
`Λ`	Λ	`Λ`	greek capital letter lambda	u+039B ISOgrk3	\039b	\u039b
`Μ`	Μ	`Μ`	greek capital letter mu	u+039C	\039c	\u039c
`Ν`	Ν	`Ν`	greek capital letter nu	u+039D	\039d	\u039D
`Ξ`	Ξ	`Ξ`	greek capital letter xi	u+039E ISOgrk3	\039e	\u039e
`Ο`	Ο	`Ο`	greek capital letter omicron	u+039F	\039f	\u039f
`Π`	Π	`Π`	greek capital letter pi	u+03A0 ISOgrk3	\03a0	\u03a0
`Ρ`	Ρ	`Ρ`	greek capital letter rho	u+03A1	\03a1	\u03a1
`Σ`	Σ	`Σ`	greek capital letter sigma	u+03A3 ISOgrk3	\03a3	\u03A3
`Τ`	Τ	`Τ`	greek capital letter tau	u+03A4	\03a4	\u03A4
`Υ`	Υ	`Υ`	greek capital letter upsilon	u+03A5 ISOgrk3	\03a5	\u03A5
`Φ`	Φ	`Φ`	greek capital letter phi	u+03A6 ISOgrk3	\03a6	\u03A6
`Χ`	Χ	`Χ`	greek capital letter chi	u+03A7	\03a7	\u03A7
`Ψ`	Ψ	`Ψ`	greek capital letter psi	u+03A8 ISOgrk3	\03a8	\u03A8
`Ω`	Ω	`Ω`	greek capital letter omega	u+03A9 ISOgrk3	\03a9	\u03A9
`α`	α	`α`	greek small letter alpha	u+03B1 ISOgrk3	\03b1	\u03b1
`β`	β	`β`	greek small letter beta	u+03B2 ISOgrk3	\03b2	\u03b2
`γ`	γ	`γ`	greek small letter gamma	u+03B3 ISOgrk3	\03b3	\u03b3
`δ`	δ	`δ`	greek small letter delta	u+03B4 ISOgrk3	\03b4	\u03b4
`ε`	ε	`ε`	greek small letter epsilon	u+03B5 ISOgrk3	\03b5	\u03b5
`ζ`	ζ	`ζ`	greek small letter zeta	u+03B6 ISOgrk3	\03b6	\u03b6
`η`	η	`η`	greek small letter eta	u+03B7 ISOgrk3	\03b7	\u03b7
`θ`	θ	`θ`	greek small letter theta	u+03B8 ISOgrk3	\03b8	\u03b8
`ι`	ι	`ι`	greek small letter iota	u+03B9 ISOgrk3	\03b9	\u03b9
`κ`	κ	`κ`	greek small letter kappa	u+03BA ISOgrk3	\03ba	\u03ba
`λ`	λ	`λ`	greek small letter lambda	u+03BB ISOgrk3	\03bb	\u03bb
`μ`	μ	`μ`	greek small letter mu	u+03BC ISOgrk3	\03bc	\u03bc
`ν`	ν	`ν`	greek small letter nu	u+03BD ISOgrk3	\03bd	\u03bd
`ξ`	ξ	`ξ`	greek small letter xi	u+03BE ISOgrk3	\03be	\u03be
`ο`	ο	`ο`	greek small letter omicron	u+03BF NEW	\03bf	\u03bf
`π`	π	`π`	greek small letter pi	u+03C0 ISOgrk3	\03c0	\u03c0
`ρ`	ρ	`ρ`	greek small letter rho	u+03C1 ISOgrk3	\03c1	\u03c1
`&sigmaf;`	ς	`ς`	greek small letter final sigma	u+03C2 ISOgrk3	\03C2	\u03c2
`σ`	σ	`σ`	greek small letter sigma	u+03C3 ISOgrk3	\03C3	\u03c3
`τ`	τ	`τ`	greek small letter tau	u+03C4 ISOgrk3	\03C4	\u03c4
`υ`	υ	`υ`	greek small letter upsilon	u+03C5 ISOgrk3	\03C5	\u03c5
`φ`	φ	`φ`	greek small letter phi	u+03C6 ISOgrk3	\03C6	\03c6
`χ`	χ	`χ`	greek small letter chi	u+03C7 ISOgrk3	\03C7	\u03c7
`ψ`	ψ	`ψ`	greek small letter psi	u+03C8 ISOgrk3	\03C8	\u03c8
`ω`	ω	`ω`	greek small letter omega	u+03C9 ISOgrk3	\03C9	\u03c9
`&thetasym;`	ϑ	`ϑ`	greek small letter theta symbol	u+03D1 NEW	\03D1	\u03D1
`&upsih;`	ϒ	`ϒ`	greek upsilon with hook symbol	u+03D2 NEW	\03D2	\u03D2
`ϖ`	ϖ	`ϖ`	greek pi symbol	u+03D6 ISOgrk3	\03D6	\u03D6

HTML Punctuation

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`&ensp;`		` `	en space	u+2002 ISOpub	\2002	\u2002
`&emsp;`		` `	em space	u+2003 ISOpub	\2003	\u2003
` `		` `	thin space	u+2009 ISOpub	\2009	\u2009
`&zwnj;`	‌	`‌`	zero width non-joiner	u+200C NEW RFC 2070	\200C	\u200C
`&zwj;`	‍	`‍`	zero width joiner	u+200D NEW RFC 2070	\200D	\u200d
`&lrm;`	‎	`‎`	left-to-right mark	u+200E NEW RFC 2070	\200E	\u200e
`&rlm;`	‏	`‏`	right-to-left mark	u+200F NEW RFC 2070	\200F	\u200f
`–`	–	`–`	en dash	u+2013 ISOpub	\2013	\u2013
`—`	—	`—`	em dash	u+2014 ISOpub	\2014	\u2014
`‘`	‘	`‘`	left single quotation mark	u+2018 ISOnum	\2018	\u2018
`’`	’	`’`	right single quotation mark	u+2019 ISOnum	\2019	\u2019
`&sbquo;`	‚	`‚`	single low-9 quotation mark	u+201A NEW	\201A	\u201a
`“`	“	`“`	left double quotation mark	u+201C ISOnum	\201C	\u201c
`”`	”	`”`	right double quotation mark	u+201D ISOnum	\201D	\u201d
`&bdquo;`	„	`„`	double low-9 quotation mark	u+201E NEW	\201E	\u201e
`&dagger;`	†	`†`	dagger	u+2020 ISOpub	\2020	\u2020
`&Dagger;`	‡	`‡`	double dagger	u+2021 ISOpub	\2021	\u2021
`&permil;`	‰	`‰`	per mille sign	u+2030 ISOtech	\2030	\u2030
`&lsaquo;`	‹	`‹`	single left-pointing angle quotation mark	u+2039 ISO proposed	\2039	\u2039
`&rsaquo;`	›	`›`	single right-pointing angle quotation mark	u+203A ISO proposed	\203A	\u203a
`•`	•	`•`	bullet, aka. black small circle	u+2022 ISOpub	\2022	\u2219
`…`	…	`…`	horizontal ellipsis, aka three dot leader	u+2026 ISOpub	\2026	\u2026
`′`	′	`′`	prime, aka minutes, aka feet	u+2032 ISOtech	\2032	\u2032
`″`	″	`″`	double prime, aka seconds, aka inches	u+2033 ISOtech	\2033	\u2033
`&oline;`	‾	`‾`	overline, aka spacing overscore	u+203E NEW	\203E	\u203e
`&frasl;`	⁄	`⁄`	fraction slash	u+2044 NEW	\2044	\u8260

HTML Letter-like Symbols

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`&weierp;`	℘	`℘`	script capital P, aka power set, aka Weierstrass p	u+2118 ISOamso	\2118	\u2118
`&image;`	ℑ	`ℑ`	blackletter capital I, aka imaginary part	u+2111 ISOamso	\2111	\u2111
`&real;`	ℜ	`ℜ`	blackletter capital R, aka real part symbol	u+211C ISOamso	\211C	\u211c
`™`	™	`™`	trade mark sign	u+2122 ISOnum	\2122	\u2122
`&alefsym;`	ℵ	`ℵ`	alef symbol	u+2135 NEW	\2135	\u

HTML Arrows

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`←`	←	`←`	leftwards arrow	u+2190 ISOnum	\2190	\u2190
`↑`	↑	`↑`	upwards arrow	u+2191 ISOnum	\2191	\u2191
`→`	→	`→`	rightwards arrow	u+2192 ISOnum	\2192	\u2192
`↓`	↓	`↓`	downwards arrow	u+2193 ISOnum	\2193	\u2193
`↔`	↔	`↔`	left right arrow	u+2194 ISOamsa	\2194	\u2194
`&crarr;`	↵	`↵`	downwards arrow with corner leftwards, aka carriage return	u+21B5 NEW	\21B5	\u21b5
`⇐`	⇐	`⇐`	leftwards double arrow can be used for ‘is implied by’	u+21D0 ISOtech	\21D0	\u21d0
`&uArr;`	⇑	`⇑`	upwards double arrow	u+21D1 ISOamsa	\21D1	\u21d1
`⇒`	⇒	`⇒`	rightwards double arrow	u+21D2 ISOtech	\21D2	\u21d2
`&dArr;`	⇓	`⇓`	downwards double arrow	u+21D3 ISOamsa	\21D3	\ud1d3
`⇔`	⇔	`⇔`	left right double arrow	u+21D4 ISOamsa	\21D4	\u21d4
	◄	`◄`	black left pointing triangle	U+25C0	\25C0	\u25c0
	►	`►`	black right pointing triangle	u+25B6	\25b6	\u25b6
	▲	`▲`	black up pointing triangle	u+25B2	\25b2	\25b2
	▼	`▼`	black down pointing triangle	u+25BC	\25bc	\25bc

HTML 数学运算符

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`∀`	∀	`∀`	for all	u+2200 ISOtech	\2200	\u2200
`∂`	∂	`∂`	partial differential	u+2202 ISOtech	\2202	\u2202
`∃`	∃	`∃`	there exists	u+2203 ISOtech	\2203	\u2203
`∅`	∅	`∅`	empty set, aka null set, aka diameter	u+2205 ISOamso	\2205	\u2205
`∇`	∇	`∇`	nabla, aka bakad difference	u+2207 ISOtech	\2207	\u2207
`∈`	∈	`∈`	element of	u+2208 ISOtech	\2208	\u2208
`∉`	∉	`∉`	not an element of	u+2209 ISOtech	\2209	\u2209
`&ni;`	∋	`∋`	contains as member	u+220B ISOtech	\220B	\u220b
`∏`	∏	`∏`	n-ary product, aka product sign	u+220F ISOamsb	\220F	\u03a0
`∑`	∑	`∑`	n-ary sumation	u+2211 ISOamsb	\2211	\u03a3
`−`	−	`−`	minus sign	u+2212 ISOtech	\2212	\u2212
`&lowast;`	∗	`∗`	asterisk operator	u+2217 ISOtech	\2217	\u2217
`√`	√	`√`	square root, aka radical sign	u+221A ISOtech	\221A	\u221a
`&prop;`	∝	`∝`	proportional to	u+221D ISOtech	\221D	\u221d
`∞`	∞	`∞`	infinity	u+221E ISOtech	\221E	\u221e
`&ang;`	∠	`∠`	angle	u+2220 ISOamso	\2220	\u2220
`&and;`	⊥	`⊥`	logical and, aka wedge	u+2227 ISOtech	\2227	\u2227
`&or;`	⊦	`⊦`	logical or, aka vee	u+2228 ISOtech	\2228	\u2228
`∩`	∩	`∩`	intersection, aka cap	u+2229 ISOtech	\2229	\u2229
`∪`	∪	`∪`	union, aka cup	u+222A ISOtech	\222A	\u222a
`∫`	∫	`∫`	integral	u+222B ISOtech	\222B	\u222b
`&there4;`	∴	`∴`	therefore	u+2234 ISOtech	\2234	\u2234
`&sim;`	∼	`∼`	tilde	u+223C ISOtech	\223C	\u223c
`&cong;`	≅	`≅`	approximately equal to	u+2245 ISOtech	\2245	\u2245
`≈`	≈	`≈`	almost equal to, aka asymptotic to	u+2248 ISOamsr	\2248	\u2248
`≠`	≠	`≠`	not equal to	u+2260 ISOtech	\2260	\u2260
`&equiv;`	≡	`≡`	identical to	u+2261 ISOtech	\2261	\u2261
`≤`	≤	`≤`	less-than or equal to	u+2264 ISOtech	\2264	\u2264
`≥`	≥	`≥`	greater-than or equal to	u+2265 ISOtech	\2265	\u2265
`⊂`	⊂	`⊂`	subset of	u+2282 ISOtech	\2282	\u2282
`⊃`	⊃	`⊃`	superset of	u+2283 ISOtech	\2283	\u2283
`&nsub;`	⊄	`⊄`	not a subset of	u+2284 ISOamsn	\2284	\u2284
`&sube;`	⊆	`⊆`	subset of or equal to	u+2286 ISOtech	\2286	\u2286
`&supe;`	⊇	`⊇`	superset of or equal to	u+2287 ISOtech	\2287	\u2287
`&oplus;`	⊕	`⊕`	circled plus, aka direct sum	u+2295 ISOamsb	\2295	\u2295
`&otimes;`	⊗	`⊗`	circled times, aka vector product	u+2297 ISOamsb	\2297	\u2297
`&perp;`	⊥	`⊥`	up tack	u+22A5 ISOtech	\22A5	\u22a5
`⋅`	⋅	`⋅`	dot operator	u+22C5 ISOamsb	\22C5	\u22c5

HTML 技术

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`&lceil;`	⌈	`⌈`	left ceiling, aka apl upstile	u+2308 ISOamsc	\2308	\u2308
`&rceil;`	⌉	`⌉`	right ceiling	u+2309 ISOamsc	\2309	\u2309
`&lfloor;`	⌊	`⌊`	left floor, aka apl downstile	u+230A ISOamsc	\230A	\u230a
`&rfloor;`	⌋	`⌋`	right floor	u+230B ISOamsc	\230B	\u230b
`&lang;`	〈	`〈`	left-pointing angle bracket	u+2329 ISOtech	\2329	\u2329
`&rang;`	〉	`〉`	right-pointing angle bracket	u+232A ISOtech	\232A	\u232a

HTML 杂项

HTML	Symbol	Numeric	描述	Hex	CSS (ISO)	JS (Octal)
`&loz;`	◊	`◊`	菱形	u+25CA ISOpub	\25CA	\u25ca
`&spades;`	♠	`♠`	黑桃	u+2660 ISOpub	\2660	\u2660
`&clubs;`	♣	`♣`	梅花	u+2663 ISOpub	\2663	\u2663
`&hearts;`	♥	`♥`	黑心套装，又名情人节	u+2665 ISOpub	\2665	\u2665
`&diams;`	♦	`♦`	方块	u+2666 ISOpub	\2666	\u2666

HTML 字符实体备忘清单

HTML 字符实体引用

HTML 特殊字符

HTML 拉丁语

HTML 拉丁文扩展

HTML 间距修饰符字母

HTML 希腊语

HTML Punctuation

HTML Letter-like Symbols

HTML Arrows

HTML 数学运算符

HTML 技术

HTML 杂项

另见