html和javascript中常用的数学及特殊符号标记

时间:2022-11-02 13:03:52

 

chr  HexCode   Numeric   HTML entity  escape(chr)  encodeURI(chr)   Description

" \x22 " " %22 %22 quotation mark
& \x26 & & %26 & ampersand
< \x3C &#60; &lt; %3C %3C less-than sign
> \x3E &#62; &gt; %3E %3E greater-than sign
  \xA0 &#160; &nbsp; %A0 %C2%A0 non-breaking space
¡ \xA1 &#161; &iexcl; %A1 %C2%A1 inverted exclamation mark
¢ \xA2 &#162; &cent; %A2 %C2%A2 cent sign
£ \xA3 &#163; &pound; %A3 %C2%A3 pound sign
¤ \xA4 &#164; &curren; %A4 %C2%A4 currency sign
¥ \xA5 &#165; &yen; %A5 %C2%A5 yen sign = yuan sign
¦ \xA6 &#166; &brvbar; %A6 %C2%A6 broken vertical bar
§ \xA7 &#167; &sect; %A7 %C2%A7 section sign
¨ \xA8 &#168; &uml; %A8 %C2%A8 diaeresis = spacing diaeresis
© \xA9 &#169; &copy; %A9 %C2%A9 copyright sign
ª \xAA &#170; &ordf; %AA %C2%AA feminine ordinal indicator
« \xAB &#171; &laquo; %AB %C2%AB left-pointing double angle quotation mark = left pointing guillemet
¬ \xAC &#172; &not; %AC %C2%AC not sign
  \xAD &#173; &shy; %AD %C2%AD soft hyphen = discretionary hyphen
® \xAE &#174; &reg; %AE %C2%AE registered sign = registered trademark sign
¯ \xAF &#175; &macr; %AF %C2%AF macron = spacing macron = overline = APL overbar
° \xB0 &#176; &deg; %B0 %C2%B0 degree sign
± \xB1 &#177; &plusmn; %B1 %C2%B1 plus-minus sign = plus-or-minus sign
² \xB2 &#178; &sup2; %B2 %C2%B2 superscript two = superscript digit two = squared
³ \xB3 &#179; &sup3; %B3 %C2%B3 superscript three = superscript digit three = cubed
´ \xB4 &#180; &acute; %B4 %C2%B4 acute accent = spacing acute
µ \xB5 &#181; &micro; %B5 %C2%B5 micro sign
\xB6 &#182; &para; %B6 %C2%B6 pilcrow sign = paragraph sign
· \xB7 &#183; &middot; %B7 %C2%B7 middle dot = Georgian comma = Greek middle dot
¸ \xB8 &#184; &cedil; %B8 %C2%B8 cedilla = spacing cedilla
¹ \xB9 &#185; &sup1; %B9 %C2%B9 superscript one = superscript digit one
º \xBA &#186; &ordm; %BA %C2%BA masculine ordinal indicator
» \xBB &#187; &raquo; %BB %C2%BB right-pointing double angle quotation mark = right pointing guillemet
¼ \xBC &#188; &frac14; %BC %C2%BC vulgar fraction one quarter = fraction one quarter
½ \xBD &#189; &frac12; %BD %C2%BD vulgar fraction one half = fraction one half
¾ \xBE &#190; &frac34; %BE %C2%BE vulgar fraction three quarters = fraction three quarters
¿ \xBF &#191; &iquest; %BF %C2%BF inverted question mark = turned question mark
× \xD7 &#215; &times; %D7 %C3%97 multiplication sign
÷ \xF7 &#247; &divide; %F7 %C3%B7 division sign
ƒ \u0192 &#402; &fnof; %u0192 %C6%92 latin small f with hook = function = florin
ˆ \u02C6 &#710; &circ; %u02C6 %CB%86 modifier letter circumflex accent
˜ \u02DC &#732; &tilde; %u02DC %CB%9C small tilde
\u2002 &#8194; &ensp; %u2002 %E2%80%82 en space
\u2003 &#8195; &emsp; %u2003 %E2%80%83 em space
\u2009 &#8201; &thinsp; %u2009 %E2%80%89 thin space
  \u200C &#8204; &zwnj; %u200C %E2%80%8C zero width non-joiner
  \u200D &#8205; &zwj; %u200D %E2%80%8D zero width joiner
  \u200E &#8206; &lrm; %u200E %E2%80%8E left-to-right mark
  \u200F &#8207; &rlm; %u200F %E2%80%8F right-to-left mark
\u2013 &#8211; &ndash; %u2013 %E2%80%93 en dash
\u2014 &#8212; &mdash; %u2014 %E2%80%94 em dash
\u2018 &#8216; &lsquo; %u2018 %E2%80%98 left single quotation mark
\u2019 &#8217; &rsquo; %u2019 %E2%80%99 right single quotation mark
\u201A &#8218; &sbquo; %u201A %E2%80%9A single low-9 quotation mark
\u201C &#8220; &ldquo; %u201C %E2%80%9C left double quotation mark
\u201D &#8221; &rdquo; %u201D %E2%80%9D right double quotation mark
\u201E &#8222; &bdquo; %u201E %E2%80%9E double low-9 quotation mark
\u2020 &#8224; &dagger; %u2020 %E2%80%A0 dagger
\u2021 &#8225; &Dagger; %u2021 %E2%80%A1 double dagger
\u2022 &#8226; &bull; %u2022 %E2%80%A2 bullet = black small circle
\u2026 &#8230; &hellip; %u2026 %E2%80%A6 horizontal ellipsis = three dot leader
\u2030 &#8240; &permil; %u2030 %E2%80%B0 per mille sign
\u2032 &#8242; &prime; %u2032 %E2%80%B2 prime = minutes = feet
\u2033 &#8243; &Prime; %u2033 %E2%80%B3 double prime = seconds = inches
\u2039 &#8249; &lsaquo; %u2039 %E2%80%B9 single left-pointing angle quotation mark
\u203A &#8250; &rsaquo; %u203A %E2%80%BA single right-pointing angle quotation mark
\u203E &#8254; &oline; %u203E %E2%80%BE overline = spacing overscore
\u2044 &#8260; &frasl; %u2044 %E2%81%84 fraction slash
\u20AC &#8364; &euro; %u20AC %E2%82%AC euro sign
\u2111 &#8465; &image; %u2111 %E2%84%91 blackletter capital I = imaginary part
\u2113 &#8467;   %u2113 %E2%84%93 script small L
\u2116 &#8470;   %u2116 %E2%84%96 numero sign
\u2118 &#8472; &weierp; %u2118 %E2%84%98 script capital P = power set = Weierstrass p
\u211C &#8476; &real; %u211C %E2%84%9C blackletter capital R = real part symbol
\u2122 &#8482; &trade; %u2122 %E2%84%A2 trademark sign
\u2135 &#8501; &alefsym; %u2135 %E2%84%B5 alef symbol = first transfinite cardinal
\u2190 &#8592; &larr; %u2190 %E2%86%90 leftwards arrow
\u2191 &#8593; &uarr; %u2191 %E2%86%91 upwards arrow
\u2192 &#8594; &rarr; %u2192 %E2%86%92 rightwards arrow
\u2193 &#8595; &darr; %u2193 %E2%86%93 downwards arrow
\u2194 &#8596; &harr; %u2194 %E2%86%94 left right arrow
\u21B5 &#8629; &crarr; %u21B5 %E2%86%B5 downwards arrow with corner leftwards = carriage return
\u21D0 &#8656; &lArr; %u21D0 %E2%87%90 leftwards double arrow
\u21D1 &#8657; &uArr; %u21D1 %E2%87%91 upwards double arrow
\u21D2 &#8658; &rArr; %u21D2 %E2%87%92 rightwards double arrow
\u21D3 &#8659; &dArr; %u21D3 %E2%87%93 downwards double arrow
\u21D4 &#8660; &hArr; %u21D4 %E2%87%94 left right double arrow
\u2200 &#8704; &forall; %u2200 %E2%88%80 for all
\u2202 &#8706; &part; %u2202 %E2%88%82 partial differential
\u2203 &#8707; &exist; %u2203 %E2%88%83 there exists
\u2205 &#8709; &empty; %u2205 %E2%88%85 empty set = null set = diameter
\u2207 &#8711; &nabla; %u2207 %E2%88%87 nabla = backward difference
\u2208 &#8712; &isin; %u2208 %E2%88%88 element of
\u2209 &#8713; &notin; %u2209 %E2%88%89 not an element of
\u220B &#8715; &ni; %u220B %E2%88%8B contains as member
\u220F &#8719; &prod; %u220F %E2%88%8F n-ary product = product sign
\u2211 &#8721; &sum; %u2211 %E2%88%91 n-ary sumation
\u2212 &#8722; &minus; %u2212 %E2%88%92 minus sign
\u2217 &#8727; &lowast; %u2217 %E2%88%97 asterisk operator
\u221A &#8730; &radic; %u221A %E2%88%9A square root = radical sign
\u221D &#8733; &prop; %u221D %E2%88%9D proportional to
\u221E &#8734; &infin; %u221E %E2%88%9E infinity
\u2220 &#8736; &ang; %u2220 %E2%88%A0 angle
\u2227 &#8743; &and; %u2227 %E2%88%A7 logical and = wedge
\u2228 &#8744; &or; %u2228 %E2%88%A8 logical or = vee
\u2229 &#8745; &cap; %u2229 %E2%88%A9 intersection = cap
\u222A &#8746; &cup; %u222A %E2%88%AA union = cup
\u222B &#8747; &int; %u222B %E2%88%AB integral
\u2234 &#8756; &there4; %u2234 %E2%88%B4 therefore
\u223C &#8764; &sim; %u223C %E2%88%BC tilde operator = varies with = similar to
\u2245 &#8773; &cong; %u2245 %E2%89%85 approximately equal to
\u2248 &#8776; &asymp; %u2248 %E2%89%88 almost equal to = asymptotic to
\u2260 &#8800; &ne; %u2260 %E2%89%A0 not equal to
\u2261 &#8801; &equiv; %u2261 %E2%89%A1 identical to
\u2264 &#8804; &le; %u2264 %E2%89%A4 less-than or equal to
\u2265 &#8805; &ge; %u2265 %E2%89%A5 greater-than or equal to
\u2282 &#8834; &sub; %u2282 %E2%8A%82 subset of
\u2283 &#8835; &sup; %u2283 %E2%8A%83 superset of
\u2284 &#8836; &nsub; %u2284 %E2%8A%84 not a subset of
\u2286 &#8838; &sube; %u2286 %E2%8A%86 subset of or equal to
\u2287 &#8839; &supe; %u2287 %E2%8A%87 superset of or equal to
\u2295 &#8853; &oplus; %u2295 %E2%8A%95 circled plus = direct sum
\u2297 &#8855; &otimes; %u2297 %E2%8A%97 circled times = vector product
\u22A5 &#8869; &perp; %u22A5 %E2%8A%A5 up tack = orthogonal to = perpendicular
\u22C5 &#8901; &sdot; %u22C5 %E2%8B%85 dot operator
\u2308 &#8968; &lceil; %u2308 %E2%8C%88 left ceiling = apl upstile
\u2309 &#8969; &rceil; %u2309 %E2%8C%89 right ceiling
\u230A &#8970; &lfloor; %u230A %E2%8C%8A left floor = apl downstile
\u230B &#8971; &rfloor; %u230B %E2%8C%8B right floor
\u2329 &#9001; &lang; %u2329 %E2%8C%A9 left-pointing angle bracket = bra
\u232A &#9002; &rang; %u232A %E2%8C%AA right-pointing angle bracket = ket
\u25CA &#9674; &loz; %u25CA %E2%97%8A lozenge
\u2660 &#9824; &spades; %u2660 %E2%99%A0 black spade suit
\u2663 &#9827; &clubs; %u2663 %E2%99%A3 black club suit = shamrock
\u2665 &#9829; &hearts; %u2665 %E2%99%A5 black heart suit = valentine
\u2666 &#9830; &diams; %u2666 %E2%99%A6 black diamond suit