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html的理论知识(完整的HTML4)

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html的理论知识(完整的HTML4)(1)

下表中的所有实体都能在所有的浏览器中正确地显示,包括 HTML4 和 HTML5 页面。

html的理论知识(完整的HTML4)(2)

如需查看完整的 HTML5 实体参考手册,

html的理论知识(完整的HTML4)(3)

字符实体十进制十六进制描述&&amp;&#38;&#x26;& 符号(ampersand)<&lt;&#60;&#x3C;小于号(less than)>&gt;&#62;&#x3E;大于号(greater than)&nbsp;&#160;&#xA0;不换行空格(no-break space = non-breaking space)¡&iexcl;&#161;&#xA1;倒置感叹号(inverted exclamation mark)¢&cent;&#162;&#xA2;美分符号(cent sign)£&pound;&#163;&#xA3;英镑符号(pound sign)¤&curren;&#164;&#xA4;货币符号(currency sign)¥&yen;&#165;&#xA5;日元符号(yen sign = yuan sign)¦&brvbar;&#166;&#xA6;间断的竖杠(broken bar = broken vertical bar)§&sect;&#167;&#xA7;小节号(section sign)¨&uml;&#168;&#xA8;分音符号(diaeresis = spacing diaeresis)©&copy;&#169;&#xA9;版权所有(copyright sign)ª&ordf;&#170;&#xAA;阴性序数记号(feminine ordinal indicator)«&laquo;&#171;&#xAB;左双角引号(left-pointing double angle quotation mark = left pointing guillemet)¬&not;&#172;&#xAC;否定符号(not sign)­&shy;&#173;&#xAD;软连字符 = 自由选定连字符(soft hyphen = discretionary hyphen)®&reg;&#174;&#xAE;注册商标(registered sign = registered trade mark sign)¯&macr;&#175;&#xAF;长音符号(macron = spacing macron = overline = APL overbar)°&deg;&#176;&#xB0;度符号(degree sign)±&plusmn;&#177;&#xB1;加减号/正负号(plus-minus sign = plus-or-minus sign)²&sup2;&#178;&#xB2;上标 2(superscript two = superscript digit two = squared)³&sup3;&#179;&#xB3;上标 3(superscript three = superscript digit three = cubed)´&acute;&#180;&#xB4;尖音符号(acute accent = spacing acute)µ&micro;&#181;&#xB5;微米符号(micro sign)¶&para;&#182;&#xB6;段落符号(pilcrow sign = paragraph sign)·&middot;&#183;&#xB7;中间点(middle dot = Georgian comma = Greek middle dot)¸&cedil;&#184;&#xB8;变音符号(cedilla = spacing cedilla)¹&sup1;&#185;&#xB9;上标 1(superscript one = superscript digit one)º&ordm;&#186;&#xBA;阳性序数记号((masculine ordinal indicator)»&raquo;&#187;&#xBB;右双角引号(right-pointing double angle quotation mark = right pointing guillemet)¼&frac14;&#188;&#xBC;1/4 分数(vulgar fraction one quarter = fraction one quarter)½&frac12;&#189;&#xBD;1/2 分数(vulgar fraction one half = fraction one half)¾&frac34;&#190;&#xBE;3/4 分数(vulgar fraction three quarters = fraction three quarters)¿&iquest;&#191;&#xBF;倒置问号(inverted question mark = turned question mark)À&Agrave;&#192;&#xC0;带有重音符号的拉丁文大写字母 A(latin capital letter A with grave = latin capital letter A grave)Á&Aacute;&#193;&#xC1;带有尖音符号的拉丁文大写字母 A(latin capital letter A with acute)Â&Acirc;&#194;&#xC2;带有抑扬音符号的拉丁文大写字母 A(latin capital letter A with circumflex)Ã&Atilde;&#195;&#xC3;带有波浪线的拉丁文大写字母 A(latin capital letter A with tilde)Ä&Auml;&#196;&#xC4;带有分音符的拉丁文大写字母 A(latin capital letter A with diaeresis)Å&Aring;&#197;&#xC5;带有上圆圈的拉丁文大写字母 A(latin capital letter A with ring above = latin capital letter A ring)Æ&AElig;&#198;&#xC6;拉丁文大写字母 AE(latin capital letter AE = latin capital ligature AE)Ç&Ccedil;&#199;&#xC7;带有变音符号的拉丁文大写字母 C(latin capital letter C with cedilla)È&Egrave;&#200;&#xC8;带有重音符号的拉丁文大写字母 E(latin capital letter E with grave)É&Eacute;&#201;&#xC9;带有尖音符号的拉丁文大写字母 E(latin capital letter E with acute)Ê&Ecirc;&#202;&#xCA;带有抑扬符号的拉丁文大写字母 E(latin capital letter E with circumflex)Ë&Euml;&#203;&#xCB;带有分音符的拉丁文大写字母 E(latin capital letter E with diaeresis)Ì&Igrave;&#204;&#xCC;带有重音符号的拉丁文大写字母 I(latin capital letter I with grave)Í&Iacute;&#205;&#xCD;带有尖音符号的拉丁文大写字母 I(latin capital letter I with acute)Î&Icirc;&#206;&#xCE;带有抑扬音符号的拉丁文大写字母 I(latin capital letter I with circumflex)Ï&Iuml;&#207;&#xCF;带有分音符的拉丁文大写字母 I(latin capital letter I with diaeresis)Ð&ETH;&#208;&#xD0;拉丁文大写字母 ETH(latin capital letter ETH)Ñ&Ntilde;&#209;&#xD1;带有波浪线的拉丁文大写字母 N(latin capital letter N with tilde)Ò&Ograve;&#210;&#xD2;带有重音符号的拉丁文大写字母 O(latin capital letter O with grave)Ó&Oacute;&#211;&#xD3;带有尖音符号的拉丁文大写字母 O(latin capital letter O with acute)Ô&Ocirc;&#212;&#xD4;带有抑扬音符号的拉丁文大写字母 O(latin capital letter O with circumflex)Õ&Otilde;&#213;&#xD5;带有波浪线的拉丁文大写字母 O(latin capital letter O with tilde)Ö&Ouml;&#214;&#xD6;带有分音符的拉丁文大写字母 O(latin capital letter O with diaeresis)×&times;&#215;&#xD7;乘号(multiplication sign)Ø&Oslash;&#216;&#xD8;带有删除线的拉丁文大写字母 O(latin capital letter O with stroke = latin capital letter O slash)Ù&Ugrave;&#217;&#xD9;带有重音符号的拉丁文大写字母 U(latin capital letter U with grave)Ú&Uacute;&#218;&#xDA;带有尖音符号的拉丁文大写字母 U(latin capital letter U with acute)Û&Ucirc;&#219;&#xDB;带有抑扬音符号的拉丁文大写字母 U(latin capital letter U with circumflex)Ü&Uuml;&#220;&#xDC;带有分音符的拉丁文大写字母 U(latin capital letter U with diaeresis)Ý&Yacute;&#221;&#xDD;带有尖音符号的拉丁文大写字母 Y(latin capital letter Y with acute)Þ&THORN;&#222;&#xDE;拉丁文大写字母 THORN(latin capital letter THORN)ß&szlig;&#223;&#xDF;拉丁文小写字母 sharp s(latin small letter sharp s = ess-zed)à&agrave;&#224;&#xE0;带有重音符号的拉丁文小写字母 a(latin small letter a with grave = latin small letter a grave)á&aacute;&#225;&#xE1;带有尖音符号的拉丁文小写字母 a(latin small letter a with acute)â&acirc;&#226;&#xE2;带有抑扬音符号的拉丁文小写字母 a(latin small letter a with circumflex)ã&atilde;&#227;&#xE3;带有波浪线的拉丁文小写字母 a(latin small letter a with tilde)ä&auml;&#228;&#xE4;带有分音符的拉丁文小写字母 a(latin small letter a with diaeresis)å&aring;&#229;&#xE5;带有上圆圈的拉丁文小写字母 a(latin small letter a with ring above = latin small letter a ring)æ&aelig;&#230;&#xE6;拉丁文小写字母 ae(latin small letter ae = latin small ligature ae)ç&ccedil;&#231;&#xE7;带有变音符号的拉丁文小写字母 c(latin small letter c with cedilla)è&egrave;&#232;&#xE8;带有重音符号的拉丁文小写字母 e(latin small letter e with grave)é&eacute;&#233;&#xE9;带有尖音符号的拉丁文小写字母 e(latin small letter e with acute)ê&ecirc;&#234;&#xEA;带有抑扬音符号的拉丁文小写字母 e(latin small letter e with circumflex)ë&euml;&#235;&#xEB;带有分音符的拉丁文小写字母 e(latin small letter e with diaeresis)ì&igrave;&#236;&#xEC;带有重音符号的拉丁文小写字母 i(latin small letter i with grave)í&iacute;&#237;&#xED;带有尖音符号的拉丁文小写字母 i(latin small letter i with acute)î&icirc;&#238;&#xEE;带有抑扬音符号的拉丁文小写字母 i(latin small letter i with circumflex)ï&iuml;&#239;&#xEF;带有分音符的拉丁文小写字母 i(latin small letter i with diaeresis)ð&eth;&#240;&#xF0;拉丁文小写字母 eth(latin small letter eth)ñ&ntilde;&#241;&#xF1;带有波浪线的拉丁文小写字母 n(latin small letter n with tilde)ò&ograve;&#242;&#xF2;带有重音符号的拉丁文小写字母 o(latin small letter o with grave)ó&oacute;&#243;&#xF3;带有尖音符号的拉丁文小写字母 o(latin small letter o with acute)ô&ocirc;&#244;&#xF4;带有抑扬音符号的拉丁文小写字母 o(latin small letter o with circumflex)õ&otilde;&#245;&#xF5;带有波浪线的拉丁文小写字母 o(latin small letter o with tilde)ö&ouml;&#246;&#xF6;带有分音符的拉丁文小写字母 o(latin small letter o with diaeresis)÷&divide;&#247;&#xF7;除号(division sign)ø&oslash;&#248;&#xF8;带有删除线的拉丁文小写字母 o(latin small letter o with stroke = latin small letter o slash)ù&ugrave;&#249;&#xF9;带有重音符号的拉丁文小写字母 u(latin small letter u with grave)ú&uacute;&#250;&#xFA;带有尖音符号的拉丁文小写字母 u(latin small letter u with acute)û&ucirc;&#251;&#xFB;带有抑扬音符号的拉丁文小写字母 u(latin small letter u with circumflex)ü&uuml;&#252;&#xFC;带有分音符的拉丁文小写字母 u(latin small letter u with diaeresis)ý&yacute;&#253;&#xFD;带有尖音符号的拉丁文小写字母 y(latin small letter y with acute)þ&thorn;&#254;&#xFE;拉丁文小写字母 thorn(latin small letter thorn)ÿ&yuml;&#255;&#xFF;带有分音符的拉丁文小写字母 y(latin small letter y with diaeresis)ƒ&fnof;&#402;&#x192;带钩的拉丁文小写 f(latin small f with hook = function = florin)Α&Alpha;&#913;&#x391;希腊大写字母 alphaΒ&Beta;&#914;&#x392;希腊大写字母 betaΓ&Gamma;&#915;&#x393;希腊大写字母 gammaΔ&Delta;&#916;&#x394;希腊大写字母 deltaΕ&Epsilon;&#917;&#x395;希腊大写字母 epsilonΖ&Zeta;&#918;&#x396;希腊大写字母 zetaΗ&Eta;&#919;&#x397;希腊大写字母 etaΘ&Theta;&#920;&#x398;希腊大写字母 thetaΙ&Iota;&#921;&#x399;希腊大写字母 iotaΚ&Kappa;&#922;&#x39A;希腊大写字母 kappaΛ&Lambda;&#923;&#x39B;希腊大写字母 lambdaΜ&Mu;&#924;&#x39C;希腊大写字母 muΝ&Nu;&#925;&#x39D;希腊大写字母 nuΞ&Xi;&#926;&#x39E;希腊大写字母 xiΟ&Omicron;&#927;&#x39F;希腊大写字母 omicronΠ&Pi;&#928;&#x3A0;希腊大写字母 piΡ&Rho;&#929;&#x3A1;希腊大写字母 rho未使用(not used)Σ&Sigma;&#931;&#x3A3;希腊大写字母 sigmaΤ&Tau;&#932;&#x3A4;希腊大写字母 tauΥ&Upsilon;&#933;&#x3A5;希腊大写字母 upsilonΦ&Phi;&#934;&#x3A6;希腊大写字母 phiΧ&Chi;&#935;&#x3A7;希腊大写字母 chiΨ&Psi;&#936;&#x3A8;希腊大写字母 psiΩ&Omega;&#937;&#x3A9;希腊大写字母 omega未使用(not used)α&alpha;&#945;&#x3B1;希腊小写字母 alphaβ&beta;&#946;&#x3B2;希腊小写字母 betaγ&gamma;&#947;&#x3B3;希腊小写字母 gammaδ&delta;&#948;&#x3B4;希腊小写字母 deltaε&epsilon;&#949;&#x3B5;希腊小写字母 epsilonζ&zeta;&#950;&#x3B6;希腊小写字母 zetaη&eta;&#951;&#x3B7;希腊小写字母 etaθ&theta;&#952;&#x3B8;希腊小写字母 thetaι&iota;&#953;&#x3B9;希腊小写字母 iotaκ&kappa;&#954;&#x3BA;希腊小写字母 kappaλ&lambda;&#955;&#x3BB;希腊小写字母 lambdaμ&mu;&#956;&#x3BC;希腊小写字母 muν&nu;&#957;&#x3BD;希腊小写字母 nuξ&xi;&#958;&#x3BE;希腊小写字母 xiο&omicron;&#959;&#x3BF;希腊小写字母 omicronπ&pi;&#960;&#x3C0;希腊小写字母 piρ&rho;&#961;&#x3C1;希腊小写字母 rhoς&sigmaf;&#962;&#x3C2;希腊小写字母 final sigmaσ&sigma;&#963;&#x3C3;希腊小写字母 sigmaτ&tau;&#964;&#x3C4;希腊小写字母 tauυ&upsilon;&#965;&#x3C5;希腊小写字母 upsilonφ&phi;&#966;&#x3C6;希腊小写字母 phiχ&chi;&#967;&#x3C7;希腊小写字母 chiψ&psi;&#968;&#x3C8;希腊小写字母 psiω&omega;&#969;&#x3C9;希腊小写字母 omega未使用(not used)ϑ&thetasym;&#977;&#x3D1;希腊小写字母 theta symbolϒ&upsih;&#978;&#x3D2;带有钩的希腊 upsilon 符号(Greek upsilon with hook symbol)未使用(not used)ϖ&piv;&#982;&#x3D6;希腊 pi 符号(Greek pi symbol)


特殊符号

字符实体十进制十六进制描述
&bull;&#8226;&#x2022;着重号 = 黑色小圆点(bullet = black small circle)
&hellip;&#8230;&#x2026;水平省略号(horizontal ellipsis = three dot leader)
&prime;&#8242;&#x2032;素数 = 分钟 = 英尺(prime = minutes = feet)
&Prime;&#8243;&#x2033;双素数 = 秒 = 英寸(double prime = seconds = inches)
&oline;&#8254;&#x203E;上划线(overline = spacing overscore)
&frasl;&#8260;&#x2044;分数斜线(fraction slash)
&weierp;&#8472;&#x2118;脚本大写 P = 幂集(script capital P = power set = Weierstrass p)
&image;&#8465;&#x2111;黑体字大写 I = 虚部符号(blackletter capital I = imaginary part)
&real;&#8476;&#x211C;黑体字大写 R = 实部符号(blackletter capital R = real part symbol)
&trade;&#8482;&#x2122;商标(trade mark sign)
&alefsym;&#8501;&#x2135;alef 符号 = 第一超限(alef symbol = first transfinite cardinal)
&larr;&#8592;&#x2190;向左的箭头(leftwards arrow)
&uarr;&#8593;&#x2191;向上的箭头(upwards arrow)
&rarr;&#8594;&#x2192;向右的箭头(rightwards arrow)
&darr;&#8595;&#x2193;向下的箭头(downwards arrow)
&harr;&#8596;&#x2194;向左和向右的箭头(left right arrow)
&crarr;&#8629;&#x21B5;带左转的向下箭头 = 回车(downwards arrow with corner leftwards = carriage return)
&lArr;&#8656;&#x21D0;向左的双箭头(leftwards double arrow)
&uArr;&#8657;&#x21D1;向上的双箭头(upwards double arrow)
&rArr;&#8658;&#x21D2;向右的双箭头(rightwards double arrow)
&dArr;&#8659;&#x21D3;向下的双箭头(downwards double arrow)
&hArr;&#8660;&#x21D4;向左和向右的双箭头(left right double arrow)
&forall;&#8704;&#x2200;所有(for all)
&part;&#8706;&#x2202;偏微分(partial differential)
&exist;&#8707;&#x2203;存在(there exists)
&empty;&#8709;&#x2205;空集 = 直径(empty set = null set = diameter)
&nabla;&#8711;&#x2207;倒三角 = 向后差分(nabla = backward difference)
&isin;&#8712;&#x2208;属于(element of)
&notin;&#8713;&#x2209;不属于(not an element of)
&ni;&#8715;&#x220B;包含的成员(contains as member)
&prod;&#8719;&#x220F;求积(n-ary product = product sign)
&sum;&#8721;&#x2211;求和(n-ary sumation)
&minus;&#8722;&#x2212;减号(minus sign)
&lowast;&#8727;&#x2217;星号运算符(asterisk operator)
&radic;&#8730;&#x221A;平方根 = 根号(square root = radical sign)
&prop;&#8733;&#x221D;成比例(proportional to)
&infin;&#8734;&#x221E;无穷(infinity)
&ang;&#8736;&#x2220;角(angle)
&and;&#8743;&#x2227;逻辑与(logical and = wedge)
&or;&#8744;&#x2228;逻辑或(logical or = vee)
&cap;&#8745;&#x2229;交集 = 帽(intersection = cap)
&cup;&#8746;&#x222A;并集 = 杯(union = cup)
&int;&#8747;&#x222B;积分(integral)
&there4;&#8756;&#x2234;所以(therefore)
&sim;&#8764;&#x223C;波浪运算符 = 相似(tilde operator = varies with = similar to)
&cong;&#8773;&#x2245;约等于(approximately equal to)
&asymp;&#8776;&#x2248;几乎等于 = 渐近(almost equal to = asymptotic to)
&ne;&#8800;&#x2260;不等于(not equal to)
&equiv;&#8801;&#x2261;恒等于(identical to)
&le;&#8804;&#x2264;小于或等于(less-than or equal to)
&ge;&#8805;&#x2265;大于或等于(greater-than or equal to)
&sub;&#8834;&#x2282;子集(subset of)
&sup;&#8835;&#x2283;超集(superset of)
&nsub;&#8836;&#x2284;非子集(not a subset of)
&sube;&#8838;&#x2286;子集或等于(subset of or equal to)
&supe;&#8839;&#x2287;超集或等于(superset of or equal to)
&oplus;&#8853;&#x2295;带圈的加号 = 直和(circled plus = direct sum)
&otimes;&#8855;&#x2297;带圈的乘号 = 矢量积(circled times = vector product)
&perp;&#8869;&#x22A5;向上的钉子 = 正交于 = 垂直(up tack = orthogonal to = perpendicular)
&sdot;&#8901;&#x22C5;点运算符(dot operator)
&lceil;&#8968;&#x2308;左天花板(left ceiling = APL upstile)
&rceil;&#8969;&#x2309;右天花板(right ceiling)
&lfloor;&#8970;&#x230A;左地板(left floor = APL downstile)
&rfloor;&#8971;&#x230B;右地板(right floor)
&lang;&#9001;&#x2329;向左的角括号(left-pointing angle bracket = bra)
&rang;&#9002;&#x232A;向右的角括号(right-pointing angle bracket = ket)
&loz;&#9674;&#x25CA;菱形(lozenge)
&spades;&#9824;&#x2660;黑桃(black spade suit)
&clubs;&#9827;&#x2663;黑梅花(black club suit = shamrock)
&hearts;&#9829;&#x2665;黑心(black heart suit = valentine)
&diams;&#9830;&#x2666;黑方块(black diamond suit)

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