| Name | Character | Unicode code point (decimal) | Standard | DTD | Old ISO subset[b] | Description[c] | quot “ U+0022 (34) HTML 2.0 HTMLspecial ISOnum quotation mark (APL quote) amp & U+0026 (38) HTML 2.0 HTMLspecial ISOnum ampersand apos ‘ U+0027 (39) XHTML 1.0 HTMLspecial ISOnum apostrophe (apostrophe-quote); see below lt < U+003C (60) HTML 2.0 HTMLspecial ISOnum less-than sign gt > U+003E (62) HTML 2.0 HTMLspecial ISOnum greater-than sign nbsp U+00A0 (160) HTML 3.2 HTMLlat1 ISOnum no-break space (non-breaking space)[d] iexcl ¡ U+00A1 (161) HTML 3.2 HTMLlat1 ISOnum inverted exclamation mark cent ¢ U+00A2 (162) HTML 3.2 HTMLlat1 ISOnum cent sign pound £ U+00A3 (163) HTML 3.2 HTMLlat1 ISOnum pound sign curren ¤ U+00A4 (164) HTML 3.2 HTMLlat1 ISOnum currency sign yen ¥ U+00A5 (165) HTML 3.2 HTMLlat1 ISOnum yen sign (yuan sign) brvbar ¦ U+00A6 (166) HTML 3.2 HTMLlat1 ISOnum broken bar (broken vertical bar) sect § U+00A7 (167) HTML 3.2 HTMLlat1 ISOnum section sign uml ¨ U+00A8 (168) HTML 3.2 HTMLlat1 ISOdia diaeresis (spacing diaeresis); see Germanic umlaut copy © U+00A9 (169) HTML 3.2 HTMLlat1 ISOnum copyright symbol ordf ª U+00AA (170) HTML 3.2 HTMLlat1 ISOnum feminine ordinal indicator laquo « U+00AB (171) HTML 3.2 HTMLlat1 ISOnum left-pointing double angle quotation mark (left pointing guillemet) not ¬ U+00AC (172) HTML 3.2 HTMLlat1 ISOnum not sign shy U+00AD (173) HTML 3.2 HTMLlat1 ISOnum soft hyphen (discretionary hyphen) reg ® U+00AE (174) HTML 3.2 HTMLlat1 ISOnum registered sign (registered trademark symbol) macr ¯ U+00AF (175) HTML 3.2 HTMLlat1 ISOdia macron (spacing macron, overline, APL overbar) deg ° U+00B0 (176) HTML 3.2 HTMLlat1 ISOnum degree symbol plusmn ± U+00B1 (177) HTML 3.2 HTMLlat1 ISOnum plus-minus sign (plus-or-minus sign) sup2 ² U+00B2 (178) HTML 3.2 HTMLlat1 ISOnum superscript two (superscript digit two, squared) sup3 ³ U+00B3 (179) HTML 3.2 HTMLlat1 ISOnum superscript three (superscript digit three, cubed) acute ´ U+00B4 (180) HTML 3.2 HTMLlat1 ISOdia acute accent (spacing acute) micro µ U+00B5 (181) HTML 3.2 HTMLlat1 ISOnum micro sign para ¶ U+00B6 (182) HTML 3.2 HTMLlat1 ISOnum pilcrow sign (paragraph sign) middot · U+00B7 (183) HTML 3.2 HTMLlat1 ISOnum middle dot (Georgian comma, Greek middle dot) cedil ¸ U+00B8 (184) HTML 3.2 HTMLlat1 ISOdia cedilla (spacing cedilla) sup1 ¹ U+00B9 (185) HTML 3.2 HTMLlat1 ISOnum superscript one (superscript digit one) ordm º U+00BA (186) HTML 3.2 HTMLlat1 ISOnum masculine ordinal indicator raquo » U+00BB (187) HTML 3.2 HTMLlat1 ISOnum right-pointing double angle quotation mark (right pointing guillemet) frac14 ¼ U+00BC (188) HTML 3.2 HTMLlat1 ISOnum vulgar fraction one quarter (fraction one quarter) frac12 ½ U+00BD (189) HTML 3.2 HTMLlat1 ISOnum vulgar fraction one half (fraction one half) frac34 ¾ U+00BE (190) HTML 3.2 HTMLlat1 ISOnum vulgar fraction three quarters (fraction three quarters) iquest ¿ U+00BF (191) HTML 3.2 HTMLlat1 ISOnum inverted question mark (turned question mark) Agrave À U+00C0 (192) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter A with grave accent (Latin capital letter A grave) Aacute Á U+00C1 (193) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter A with acute accent Acirc  U+00C2 (194) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter A with circumflex Atilde à U+00C3 (195) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter A with tilde Auml Ä U+00C4 (196) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter A with diaeresis Aring Å U+00C5 (197) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter A with ring above (Latin capital letter A ring) AElig Æ U+00C6 (198) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter AE (Latin capital ligature AE) Ccedil Ç U+00C7 (199) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter C with cedilla Egrave È U+00C8 (200) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter E with grave accent Eacute É U+00C9 (201) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter E with acute accent Ecirc Ê U+00CA (202) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter E with circumflex Euml Ë U+00CB (203) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter E with diaeresis Igrave Ì U+00CC (204) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter I with grave accent Iacute Í U+00CD (205) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter I with acute accent Icirc Î U+00CE (206) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter I with circumflex Iuml Ï U+00CF (207) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter I with diaeresis ETH Ð U+00D0 (208) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter Eth Ntilde Ñ U+00D1 (209) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter N with tilde Ograve Ò U+00D2 (210) HTML 2.0 HTMLlat1 ISOlat1 Latin capital letter O with grave accent minus − U+2212 (8722) HTML 4.0 HTMLsymbol ISOtech minus sign lowast ∗ U+2217 (8727) HTML 4.0 HTMLsymbol ISOtech asterisk operator radic √ U+221A (8730) HTML 4.0 HTMLsymbol ISOtech square root (radical sign) prop ∝ U+221D (8733) HTML 4.0 HTMLsymbol ISOtech proportional to infin ∞ U+221E (8734) HTML 4.0 HTMLsymbol ISOtech infinity ang ∠ U+2220 (8736) HTML 4.0 HTMLsymbol ISOamso angle and ∧ U+2227 (8743) HTML 4.0 HTMLsymbol ISOtech logical and (wedge) or ∨ U+2228 (8744) HTML 4.0 HTMLsymbol ISOtech logical or (vee) cap ∩ U+2229 (8745) HTML 4.0 HTMLsymbol ISOtech intersection (cap) cup ∪ U+222A (8746) HTML 4.0 HTMLsymbol ISOtech union (cup) int ∫ U+222B (8747) HTML 4.0 HTMLsymbol ISOtech integral there4 ∴ U+2234 (8756) HTML 4.0 HTMLsymbol ISOtech therefore sign sim ∼ U+223C (8764) HTML 4.0 HTMLsymbol ISOtech tilde operator (varies with, similar to)[m] cong ≅ U+2245 (8773) HTML 4.0 HTMLsymbol ISOtech congruent to具体详见https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references
