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© 2025 Sprout Blog | Theme Miracles

本文编写于 2888 天前，最后修改于 1819 天前，其中某些信息可能已经过时。

实体字符

一些字符在 HTML 中是预留的，拥有特殊的含义，比如小于号'<'用于定义 HTML 标签的开始。如果我们希望浏览器正确地显示这些字符，我们必须在 HTML 源码中插入字符实体。

字符实体有三部分：一个和号'&'和一个实体名称（或者一个'#' 和一个实体编号），以及一个分号';'。

要在 HTML 文档中显示小于号，我们需要这样写：&lt; 或者'<'最后的效果则是<

使用实体名称而不是实体编号的好处在于，名称相对来说更容易记忆。而这么做的坏处是，并不是所有的浏览器都支持最新的实体名称，然而几乎所有的浏览器对实体编号的支持都很好。

注意：实体对大小写敏感。

常用的字符实体

显示结果描述实体名称实体编码
 空格&nbsp;&#160;
<小于号&lt;&#60;
>大于号&gt;&#62;
&和号&amp;&#38;
"引号&quot;&#34;
'撇号&apos;(IE不支持)&#39;

其他常用的字符实体

显示结果描述实体名称实体编码
¢分&cent;&#162;
£镑&pound;&#163;
€欧元&euro;&#8364;
¥日圆&yen;&#165;
§节&sect;&#167;
©版权&copy;&#169;
®注册商标&reg;&#174;
×乘号&times;&#215;
÷除号&divide;&#247;
|竖线 &#124;
·圆点&middot;&#183;

ISO 8859-1 符号实体

显示结果实体名称实体编码显示结果实体名称实体编码
 &nbsp;&#160;¡&iexcl;&#161;
¢&cent;&#162;£&pound;&#163;
¤&curren;&#164;¥&yen;&#165;
¦&brvbar;&#166;§&sect;&#167;
¨&uml;&#168;©&copy;&#169;
ª&ordf;&#170;«&laquo;&#171;
¬&not;&#172;­&shy;&#173;
®&reg;&#174;¯&macr;&#175;
°&deg;&#176;±&plusmn;&#177;
²&sup2;&#178;³&sup3;&#179;
´&acute;&#180;µ&micro;&#181;
&para;&#182;·&middot;&#183;
¸&cedil;&#184;¹&sup1;&#185;
º&ordm;&#186;»&raquo;&#187;
¼&frac14;&#188;½&frac12;&#189;
¾&frac34;&#190;¿&iquest;&#191;
À&Agrave;&#192;Á&Aacute;&#193;
Â&Acirc;&#194;Ã&Atilde;&#195;
Ä&Auml;&#196;Å&Aring;&#197;
Æ&AElig;&#198;Ç&Ccedil;&#199;
È&Egrave;&#200;É&Eacute;&#201;
Ê&Ecirc;&#202;Ë&Euml;&#203;
Ì&Igrave;&#204;Í&Iacute;&#205;
Î&Icirc;&#206;Ï&Iuml;&#207;
Ð&ETH;&#208;Ñ&Ntilde;&#209;
Ò&Ograve;&#210;Ó&Oacute;&#211;
Ô&Ocirc;&#212;Õ&Otilde;&#213;
Ö&Ouml;&#214;×&times;&#215;
Ø&Oslash;&#216;Ù&Ugrave;&#217;
Ú&Uacute;&#218;Û&Ucirc;&#219;
Ü&Uuml;&#220;Ý&Yacute;&#221;
Þ&THORN;&#222;ß&szlig;&#223;
à&agrave;&#224;á&aacute;&#225;
â&acirc;&#226;ã&atilde;&#227;
ä&auml;&#228;å&aring;&#229;
æ&aelig;&#230;ç&ccedil;&#231;
è&egrave;&#232;é&eacute;&#233;
ê&ecirc;&#234;ë&euml;&#235;
ì&igrave;&#236;í&iacute;&#237;
î&icirc;&#238;ï&iuml;&#239;
ð&eth;&#240;ñ&ntilde;&#241;
ò&ograve;&#242;ó&oacute;&#243;
ô&ocirc;&#244;õ&otilde;&#245;
ö&ouml;&#246;÷&divide;&#247;
ø&oslash;&#248;ù&ugrave;&#249;
ú&uacute;&#250;û&ucirc;&#251;
ü&uuml;&#252;ý&yacute;&#253;
þ&thorn;&#254;ÿ&yuml;&#255;

HTML实体符号

HTML 支持的数学符号

显示结果实体名称实体编码显示结果实体名称实体编码
∀&forall;&#8704;∂&part;&#8706;
&exists;&exists;&#8707;∅&empty;&#8709;
∇&nabla;&#8711;∈&isin;&#8712;
∉&notin;&#8713;∋&ni;&#8715;
∏&prod;&#8719;∑&sum;&#8721;
−&minus;&#8722;∗&lowast;&#8727;
√&radic;&#8730;∝&prop;&#8733;
∞&infin;&#8734;∠&ang;&#8736;
∧&and;&#8743;∨&or;&#8744;
∩&cap;&#8745;∪&cup;&#8746;
∫&int;&#8747;∴&there4;&#8756;
∼&sim;&#8764;≅&cong;&#8773;
≈&asymp;&#8776;≠&ne;&#8800;
≡&equiv;&#8801;≤&le;&#8804;
≥&ge;&#8805;⊂&sub;&#8834;
⊃&sup;&#8835;⊄&nsub;&#8836;
⊆&sube;&#8838;⊇&supe;&#8839;
⊕&oplus;&#8853;⊗&otimes;&#8855;
⊥&perp;&#8869;⋅&sdot;&#8901;

HTML 支持的希腊字母

显示结果实体名称实体编码显示结果实体名称实体编码
Α&Alpha;&#913;Β&Beta;&#914;
Γ&Gamma;&#915;Δ&Delta;&#916;
Ε&Epsilon;&#917;Ζ&Zeta;&#918;
Η&Eta;&#919;Θ&Theta;&#920;
Ι&Iota;&#921;Κ&Kappa;&#922;
Λ&Lambda;&#923;Μ&Mu;&#924;
Ν&Nu;&#925;Ξ&Xi;&#926;
Ο&Omicron;&#927;Π&Pi;&#928;
Ρ&Rho;&#929;Σ&Sigma;&#931;
Τ&Tau;&#932;Υ&Upsilon;&#933;
Φ&Phi;&#934;Χ&Chi;&#935;
Ψ&Psi;&#936;Ω&Omega;&#937;
α&alpha;&#945;β&beta;&#946;
γ&gamma;&#947;δ&delta;&#948;
ε&epsilon;&#949;ζ&zeta;&#950;
η&eta;&#951;θ&theta;&#952;
ι&iota;&#953;κ&kappa;&#954;
λ&lambda;&#955;μ&mu;&#956;
ν&nu;&#957;ξ&xi;&#958;
ο&omicron;&#959;π&pi;&#960;
ρ&rho;&#961;ς&sigmaf;&#962;
σ&sigma;&#963;τ&tau;&#964;
υ&upsilon;&#965;φ&phi;&#966;
χ&chi;&#967;ψ&psi;&#968;
ω&omega;&#969;ϑ&thetasym;&#977;
ϒ&upsih;&#978;ϖ&piv;&#982;

HTML 支持的其他实体

显示结果实体名称实体编码显示结果实体名称实体编码
Œ&OElig;&#338;œ&oelig;&#339;
Š&Scaron;&#352;š&scaron;&#353;
Ÿ&Yuml;&#376;ƒ&fnof;&#402;
ˆ&circ;&#710;˜&tilde;&#732;
 &ensp;&#8194; &emsp;&#8195;
 &thinsp;&#8201;‌&zwnj;&#8204;
‍&zwj;&#8205;‎&lrm;&#8206;
‏&rlm;&#8207;–&ndash;&#8211;
—&mdash;&#8212;‘&lsquo;&#8216;
’&rsquo;&#8217;‚&sbquo;&#8218;
“&ldquo;&#8220;”&rdquo;&#8221;
„&bdquo;&#8222;†&dagger;&#8224;
‡&Dagger;&#8225•&bull;&#8226;
…&hellip;&#8230;‰&permil;&#8240;
′&prime;&#8242;″&Prime;&#8243;
‹&lsaquo;&#8249;›&rsaquo;&#8250;
‾&oline;&#8254;€&euro;&#8364;
™&trade;&#8482;←&larr;&#8592;
↑&uarr;&#8593;→&rarr;&#8594;
↓&darr;&#8595;↔&harr;&#8596;
↵&crarr;&#8629;⌈&lceil;&#8968;
⌉&rceil;&#8969;⌊&lfloor;&#8970;
⌋&rfloor;&#8971;◊&loz;&#9674;
♠&spades;&#9824;♣&clubs;&#9827;
♥&hearts;&#9829;♦&diams;&#9830;

URL 编码

从 %00 到 %8f

ASCII ValueURL-encodeASCII ValueURL-encodeASCII ValueURL-encode
æ%000%30\`%60
%011%31a%61
%022%32b%62
%033%33c%63
%044%34d%64
%055%35e%65
%066%36f%66
%077%37g%67
backspace%088%38h%68
tab%099%39i%69
linefeed%0a:%3aj%6a
%0b;%3bk%6b
%0c<%3cl%6c
c return%0d=%3dm%6d
%0e>%3en%6e
%0f?%3fo%6f
%10@%40p%70
%11A%41q%71
%12B%42r%72
%13C%43s%73
%14D%44t%74
%15E%45u%75
%16F%46v%76
%17G%47w%77
%18H%48x%78
%19I%49y%79
%1aJ%4az%7a
%1bK%4b{%7b
%1cL%4c|%7c
%1dM%4d}%7d
%1eN%4e~%7e
%1fO%4f %7f
space%20P%50€%80
!%21Q%51 %81
"%22R%52‚%82
#%23S%53ƒ%83
$%24T%54„%84
%%25U%55…%85
&%26V%56†%86
'%27W%57‡%87
(%28X%56ˆ%88
)%29Y%59‰%89
*%2aZ%5aŠ%8a
+%2b[%5b‹%8b
,%2c\%5cŒ%8c
-%2d]%5d %8d
.%2e^%5eŽ%8e
/%2f_%5f %8f

从 %90 到 %ff

ASCII ValueURL-encodeASCII ValueURL-encodeASCII ValueURL-encode
%90À%c0ð%f0
‘%91Á%c1ñ%f1
’%92Â%c2ò%f2
“%9rÃ%c3ó%f3
”%94Ä%c4ô%f4
•%95Å%c5õ%f5
–%96Æ%c6ö%f6
—%97Ç%c7÷%f7
˜%98È%c8ø%f8
™%99É%c9ù%f9
š%9aÊ%caú%fa
›%9bË%cbû%fb
œ%9cÌ%ccü%fc
%9dÍ%cdý%fd
ž%9eÎ%ceþ%fe
Ÿ%9fÏ%cfÿ%ff
%a0Ð%d0
¡%a1Ñ%d1
¢%a2Ò%d2
£%a3Ó%d3
%a4Ô%d4
¥%a5Õ%d5
|%a6Ö%d6
§%a7 %d7
¨%a8Ø%d8
©%a9Ù%d9
ª%aaÚ%da
«%abÛ%db
¬%acÜ%dc
¯%adÝ%dd
®%aeÞ%de
¯%afß%df
°%b0à%e0
±%b1á%e1
²%b2â%e2
³%b3ã%e3
´%b4ä%e4
µ%b5å%e5
%b6æ%e6
·%b7ç%e7
¸%b8è%e8
¹%b9é%e9
º%baê%ea
»%bbë%eb
¼%bcì%ec
½%bdí%ed
¾%beî%ee
¿%bfï%ef  

本文部分内容来自：

  1. https://baike.baidu.com/item/HTML%E5%AE%9E%E4%BD%93/9172201
  2. https://www.cnblogs.com/xyyt/p/3515397.html
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