天津建设招标网站,广西建设厅网证件查询,seo 对网站有什么影响,佛山市前言 一些字符在 HTML 中是预留的#xff0c;拥有特殊的含义#xff0c;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#xff0c;我们必须在 HTML 源码中插入字符实体。
字符实体有三部分#xff1a;一个和号‘’和一个实体名…前言 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。 一、HTML 特殊字符
HTML实体字符实体编号描述CSS (ISO)JS (Octal)quot;#34;引号\0022\42num;##35;数字符号\0023\43dollar;$#36;美元符号\0024\44percnt;%#37;百分号\0025\45amp;#38;和号\0026\46apos;#39;撇号\0027\47lpar;(#40;左括号\0028\50rpar;)#41;右括号\0029\51ast;*#42;星号\002a\52plus;#43;加号\002b\53comma;,#44;逗号\002c\54minus;-#45;连字符减号\002d\55period;.#46;句号\002e\56sol;/#47;固相线\002f\57colon;:#58;冒号\003a\72semi;;#59;分号\003b\73lt;#60;少于\003c\74equals;#61;等于\003d\75gt;#62;大于号\003e\76quest;?#63;问号\003f\77commat;#64;在标志处\0040\100lsqb;[#91;左方括号\005b\133bsol;\#92;反斜杠\005c\134rsqb;]#93;右方括号\005d\135Hat;^#94;抑扬顿挫\005e\136lowbar;_#95;低线\005f\137grave;#96;重音\0060\u0060lcub;{#123;左大括号\007b\173verbar;|#124;竖线\007c\174rcub;}#125;右大括号\007d\175~#126;波浪号\007e\176
二、HTML 拉丁语
HTML实体字符实体编号描述CSS (ISO)JS (Octal)nbsp;#160;no-break space\00a0\240iexcl;¡#161;inverted exclamation mark\00a1\241cent;¢#162;cent sign\00a2\242pound;£#163;pound sterling sign\00a3\243curren;¤#164;general currency sign\00a4\244yen;¥#165;yen sign\00a5\245#x20B9;₹#x20B9;Indian Rupee (INR) sign\20B9\u20B9brvbar;¦#166;broken (vertical) bar\00a6\246sect;§#167;section sign\00a7\247uml;¨#168;umlaut (dieresis)\00a8\250copy;©#169;copyright sign\00a9\251ordf;ª#170;ordinal indicator, feminine\00aa\252laquo;«#171;angle quotation mark, left\00ab\253not;¬#172;not sign\00ac\254shy;#173;soft hyphen\00ad\255reg;®#174;registered sign\00ae\256macr;¯#175;macron\00af\257deg;°#176;degree sign\00b0\260plusmn;±#177;plus-or-minus sign\00b1\261sup2;²#178;superscript two\00b2\262sup3;³#179;superscript three\00b3\263acute;´#180;acute accent\00b4\264micro;µ#181;micro sign\00b5\265para;¶#182;pilcrow (paragraph sign)\00b6\266middot;·#183;middle dot\00b7\267cedil;¸#184;cedilla\00b8\270sup1;¹#185;superscript one\00b9\271ordm;º#186;ordinal indicator, masculine\00ba\272raquo;»#187;angle quotation mark, right\00bb\273frac14;¼#188;fraction one-quarter\00bc\274frac12;½#189;fraction one-half\00bd\275frac34;¾#190;fraction three-quarters\00be\276iquest;¿#191;inverted question mark\00bf\277Agrave;À#192;capital A, grave accent\00c0\300Aacute;Á#193;capital A, acute accent\00c1\301Acirc;Â#194 ;capital A, circumflex accent\00c2\302Atilde;Ã#195;capital A, tilde\00c3\303Auml;Ä#196;capital A, dieresis or umlaut mark\00c4\304Aring;Å#197;capital A, ring\00c5\305AElig;Æ#198;capital AE diphthong (ligature)\00c6\306Ccedil;Ç#199;capital C, cedilla\00c7\307Egrave;È#200;capital E, grave accent\00c8\310Eacute;É#201;capital E, acute accent\00c9\311Ecirc;Ê#202;capital E, circumflex accent\00ca\312Euml;Ë#203;capital E, dieresis or umlaut mark\00cb\313Igrave;Ì#204;capital I, grave accent\00cc\314Iacute;Í#205;capital I, acute accent\00cd\315Icirc;Î#206;capital I, circumflex accent\00ce\316Iuml;Ï#207;capital I, dieresis or umlaut mark\00cf\317ETH;Ð#208;capital Eth, Icelandic\00d0\320Ntilde;Ñ#209;capital N, tilde\00d1\321Ograve;Ò#210;capital O, grave accent\00d2\322Oacute;Ó#211;capital O, acute accent\00d3\323Ocirc;Ô#212;capital O, circumflex accent\00d4\324Otilde;Õ#213;capital O, tilde\00d5\325Ouml;Ö#214;capital O, dieresis or umlaut mark\00d6\326times;×#215;multiply sign\00d7\327Oslash;Ø#216;capital O, slash\00d8\330Ugrave;Ù#217;capital U, grave accent\00d9\331Uacute;Ú#218;capital U, acute accent\00da\332Ucirc;Û#219;capital U, circumflex accent\00db\333Uuml;Ü#220;capital U, dieresis or umlaut mark\00dc\334Yacute;Ý#221;capital Y, acute accent\00dd\335THORN;Þ#222;capital THORN, Icelandic\00de\336szlig;ß#223;small sharp s, German (sz ligature)\00df\337agrave;à#224;small a, grave accent\00e0\340aacute;á#225;small a, acute accent\00e1\341acirc;â#226;small a, circumflex accent\00e2\342atilde;ã#227;small a, tilde\00e3\343auml;ä#228;small a, dieresis or umlaut mark\00e4\344aring;å#229;small a, ring\00e5\345aelig;æ#230;small ae diphthong (ligature)\00e6\346ccedil;ç#231;small c, cedilla\00e7\347egrave;è#232;small e, grave accent\00e8\350eacute;é#233;small e, acute accent\00e9\351ecirc;ê#234;small e, circumflex accent\00ea\352euml;ë#235;small e, dieresis or umlaut mark\00eb\353igrave;ì#236;small i, grave accent\00ec\354iacute;í#237;small i, acute accent\00ed\355icirc;î#238;small i, circumflex accent\00ee\356iuml;ï#239;small i, dieresis or umlaut mark\00ef\357eth;ð#240;small eth, Icelandic\00f0\360ntilde;ñ#241;small n, tilde\00f1\361ograve;ò#242;small o, grave accent\00f2\362oacute;ó#243;small o, acute accent\00f3\363ocirc;ô#244;small o, circumflex accent\00f4\364otilde;õ#245;small o, tilde\00f5\365ouml;ö#246;small o, dieresis or umlaut mark\00f6\366divide;÷#247;divide sign\00f7\367oslash;ø#248;small o, slash\00f8\370ugrave;ù#249;small u, grave accent\00f9\371uacute;ú#250;small u, acute accent\00fa\372ucirc;û#251;small u, circumflex accent\00fb\373uuml;ü#252;small u, dieresis or umlaut mark\00fc\374yacute;ý#253;small y, acute accent\00fd\375thorn;þ#254;small thorn, Icelandic\00fe\376yuml;ÿ#255;small y, dieresis or umlaut mark\00ff\377OElig;Œ#338;latin capital ligature oe\0152\u0152oelig;œ#339;latin small ligature oe\0153\u0153Scaron;Š#352;latin capital letter s with caron\0160\u0160scaron;š#353;latin small letter s with caron\0161\u0161Yuml;Ÿ#376;latin capital letter y with diaeresis\0178\u0178fnof;ƒ#402;latin small f with hook\0192\u0192
三、HTML 希腊语
HTML实体字符实体编号描述CSS (ISO)JS (Octal)Alpha;Α#913;greek capital letter alpha\0391\u0391Beta;Β#914;greek capital letter beta\0392\u0392Gamma;Γ#915;greek capital letter gamma\0393\u0395Delta;Δ#916;greek capital letter delta\0394\u0394Epsilon;Ε#917;greek capital letter epsilon\0395\u0395Zeta;Ζ#918;greek capital letter zeta\0396\u0396Eta;Η#919;greek capital letter eta\0397\u0397Theta;Θ#920;greek capital letter theta\0398\u0398Iota;Ι#921;greek capital letter iota\0399\u0399Kappa;Κ#922;greek capital letter kappa\039a\u039aLambda;Λ#923;greek capital letter lambda\039b\u039bMu;Μ#924;greek capital letter mu\039c\u039cNu;Ν#925;greek capital letter nu\039d\u039DXi;Ξ#926;greek capital letter xi\039e\u039eOmicron;Ο#927;greek capital letter omicron\039f\u039fPi;Π#928;greek capital letter pi\03a0\u03a0Rho;Ρ#929;greek capital letter rho\03a1\u03a1Sigma;Σ#931;greek capital letter sigma\03a3\u03A3Tau;Τ#932;greek capital letter tau\03a4\u03A4Upsilon;Υ#933;greek capital letter upsilon\03a5\u03A5Phi;Φ#934;greek capital letter phi\03a6\u03A6Chi;Χ#935;greek capital letter chi\03a7\u03A7Psi;Ψ#936;greek capital letter psi\03a8\u03A8Omega;Ω#937;greek capital letter omega\03a9\u03A9alpha;α#945;greek small letter alpha\03b1\u03b1beta;β#946;greek small letter beta\03b2\u03b2gamma;γ#947;greek small letter gamma\03b3\u03b3delta;δ#948;greek small letter delta\03b4\u03b4epsilon;ε#949;greek small letter epsilon\03b5\u03b5zeta;ζ#950;greek small letter zeta\03b6\u03b6eta;η#951;greek small letter eta\03b7\u03b7theta;θ#952;greek small letter theta\03b8\u03b8iota;ι#953;greek small letter iota\03b9\u03b9kappa;κ#954;greek small letter kappa\03ba\u03balambda;λ#955;greek small letter lambda\03bb\u03bbmu;μ#956;greek small letter mu\03bc\u03bcnu;ν#957;greek small letter nu\03bd\u03bdxi;ξ#958;greek small letter xi\03be\u03beomicron;ο#959;greek small letter omicron\03bf\u03bfpi;π#960;greek small letter pi\03c0\u03c0rho;ρ#961;greek small letter rho\03c1\u03c1sigmaf;ς#962;greek small letter final sigma\03C2\u03c2sigma;σ#963;greek small letter sigma\03C3\u03c3tau;τ#964;greek small letter tau\03C4\u03c4upsilon;υ#965;greek small letter upsilon\03C5\u03c5phi;φ#966;greek small letter phi\03C6\03c6chi;χ#967;greek small letter chi\03C7\u03c7psi;ψ#968;greek small letter psi\03C8\u03c8omega;ω#969;greek small letter omega\03C9\u03c9thetasym;ϑ#977;greek small letter theta symbol\03D1\u03D1upsih;ϒ#978;greek upsilon with hook symbol\03D2\u03D2piv;ϖ#982;greek pi symbol\03D6\u03D6
四、HTML 标点符号
HTML实体字符实体编号描述CSS (ISO)JS (Octal)ensp; #8194;en space\2002\u2002emsp; #8195;em space\2003\u2003thinsp; #8201;thin space\2009\u2009zwnj;#8204;zero width non-joiner\200C\u200Czwj;#8205;zero width joiner\200D\u200dlrm;#8206;left-to-right mark\200E\u200erlm;#8207;right-to-left mark\200F\u200fndash;–#8211;en dash\2013\u2013mdash;—#8212;em dash\2014\u2014lsquo;‘#8216;left single quotation mark\2018\u2018rsquo;’#8217;right single quotation mark\2019\u2019sbquo;‚#8218;single low-9 quotation mark\201A\u201aldquo;“#8220;left double quotation mark\201C\u201crdquo;”#8221;right double quotation mark\201D\u201dbdquo;„#8222;double low-9 quotation mark\201E\u201edagger;†#8224;dagger\2020\u2020Dagger;‡#8225;double dagger\2021\u2021permil;‰#8240;per mille sign\2030\u2030lsaquo;‹#8249;single left-pointing angle quotation mark\2039\u2039rsaquo;›#8250;single right-pointing angle quotation mark\203A\u203abull;•#8226;bullet, aka. black small circle\2022\u2219hellip;…#8230;horizontal ellipsis, aka three dot leader\2026\u2026prime;′#8242;prime, aka minutes, aka feet\2032\u2032Prime;″#8243;double prime, aka seconds, aka inches\2033\u2033oline;‾#8254;overline, aka spacing overscore\203E\u203efrasl;⁄#8260;fraction slash\2044\u8260
五、HTML 箭头
HTML实体字符实体编号描述CSS (ISO)JS (Octal)larr;←#8592;向左箭头\2190\u2190uarr;↑#8593;向上箭头\2191\u2191rarr;→#8594;向右箭头\2192\u2192darr;↓#8595;向下箭头\2193\u2193harr;↔#8596;左右双向箭头\2194\u2194crarr;↵#8629;回车箭头\21B5\u21b5lArr;⇐#8656;向左的双箭头\21D0\u21d0uArr;⇑#8657;向上的双箭头\21D1\u21d1rArr;⇒#8658;向右的双箭头\21D2\u21d2dArr;⇓#8659;向下的双箭头\21D3\ud1d3hArr;⇔#8660;左右双向的双箭头\21D4\u21d4◄#9668;向左的黑色实心箭头\25C0\u25c0►#9658;向右的黑色实心箭头\25b6\u25b6▲#9650;向上的黑色实心箭头\25b2\25b2▼#9660;向下的黑色实心箭头\25bc\25bc
六、HTML 数学运算符
HTML实体字符实体编号描述CSS (ISO)JS (Octal)forall;∀#8704;for all\2200\u2200part;∂#8706;partial differential\2202\u2202exist;∃#8707;there exists\2203\u2203empty;∅#8709;empty set, aka null set, aka diameter\2205\u2205nabla;∇#8711;nabla, aka bakad difference\2207\u2207isin;∈#8712;element of\2208\u2208notin;∉#8713;not an element of\2209\u2209ni;∋#8715;contains as member\220B\u220bprod;∏#8719;n-ary product, aka product sign\220F\u03a0sum;∑#8721;n-ary sumation\2211\u03a3minus;−#8722;minus sign\2212\u2212lowast;∗#8727;asterisk operator\2217\u2217radic;√#8730;square root, aka radical sign\221A\u221aprop;∝#8733;proportional to\221D\u221dinfin;∞#8734;infinity\221E\u221eang;∠#8736;angle\2220\u2220and;⊥#8869;logical and, aka wedge\2227\u2227or;⊦#8870;logical or, aka vee\2228\u2228cap;∩#8745;intersection, aka cap\2229\u2229cup;∪#8746;union, aka cup\222A\u222aint;∫#8747;integral\222B\u222bthere4;∴#8756;therefore\2234\u2234sim;∼#8764;tilde\223C\u223ccong;≅#8773;approximately equal to\2245\u2245asymp;≈#8776;almost equal to, aka asymptotic to\2248\u2248ne;≠#8800;not equal to\2260\u2260equiv;≡#8801;identical to\2261\u2261le;≤#8804;less-than or equal to\2264\u2264ge;≥#8805;greater-than or equal to\2265\u2265sub;⊂#8834;subset of\2282\u2282sup;⊃#8835;superset of\2283\u2283nsub;⊄#8836;not a subset of\2284\u2284sube;⊆#8838;subset of or equal to\2286\u2286supe;⊇#8839;superset of or equal to\2287\u2287oplus;⊕#8853;circled plus, aka direct sum\2295\u2295otimes;⊗#8855;circled times, aka vector product\2297\u2297perp;⊥#8869;up tack\22A5\u22a5sdot;⋅#8901;dot operator\22C5\u22c5
七、HTML 其他
HTML实体字符实体编号描述CSS (ISO)JS (Octal)loz;◊#9674;菱形\25CA\u25caspades;♠#9824;黑桃\2660\u2660clubs;♣#9827;梅花\2663\u2663hearts;♥#9829;黑心套装又名情人节\2665\u2665diams;♦#9830;方块\2666\u2666weierp;℘#8472;不知道怎么描述看符号吧\2118\u2118image;ℑ#8465;不知道怎么描述看符号吧\2111\u2111real;ℜ#8476;不知道怎么描述看符号吧\211C\u211ctrade;™#8482;商标标志\2122\u2122alefsym;ℵ#8501;不知道怎么描述看符号吧\2135\ucirc;ˆ向上的尖括号\02c6\u02c6tilde;˜小波浪\02dc\u02dc
