Wolemba pulogalamu HTML. Monga tsamba wonyika

Monga njira ya kabisidwe mudziwe kuti kufala ake pa Intaneti ntchito HTML 'kala' ikusonyeza. Kuona chizindikiro pa ndondomeko izi actuated, chiwerengero cha Akamva imafalikira kwa iwo kudzera chizindikiro yeniyeni. Choncho pang'ono encodes awiri mfundo zidutswa ziwiri anapangidwa kuti kabisidwe mfundo zinayi, zidutswa zitatu - eyiti. Powonjezera Akamva, mungathe pawiri chiwerengero cha mfundo ndiyotengera. Choncho, 8 Akamva akhoza encode mindandanda 256 (mfundo) mu malamulo bayinare. Chochititsa chidwi n'chakuti aliyense ndondomeko lili luso popereka khalidwe mutu. An kabisidwe njira ya Akamva eyiti ndi 'kala' ikusonyeza pa 16 ndi 32-bit, iwo mphamvu ndi processing 65.536, motero, 4294967296 otchulidwa m'malemba.

Kutsegula m'gulu osatsegula wa Windows Internet Explorer, mukhoza menyu "View - kabisidwe 'kuwona mndandanda wa encodings osiyana. Kumbukirani kuti Russian HTML 'kala' ikusonyeza ukufanizidwa ndi matebulo waukulu asanu amene amathandiza zilembo za Chisililiki. Ambiri mwa iwo - Windows-1251, ndiye kutsatira-8859-5 ndi ISO, ndi UTF-8, KOI-8R, KOI-8U , komanso ndi 'kala' ikusonyeza Chirasha chilengedwe Mac.

Wolemba pulogalamu HTML angathe molondola kusonyeza zambiri pa tsamba. Chifukwa protocol alipo umasinthanitsidwa pakati pa makina ndi msakatuli mudziwe utumiki umene uli deta mabuku pa njira ntchito kabisidwe malemba.

Ntchito za protocol HTTP, ikuchitika ndondomeko kutumiza msakatuli pa makina mauthenga, amene analandira, makina akutenga tsamba limene ndimafuna komanso anamasulira iwo (recode) mu mtundu chofunika. Popeza chikalata pa makina (a Web tsamba), m'pofunika kusankha yoyenera wolemba pulogalamu nokha (pamanja).

Wolemba pulogalamu HTML limakupatsani anapereka magawo a dawunilodi tsamba. Ndipotu, pa olondola a zimadalira osatsegula pachikhalidwe ukonde gwero la malangizo. Mwachitsanzo, ngakhale mitundu ntchito pa tsamba ndi chimafotokozera code.

Wolemba pulogalamu mitundu HTML amapezeka ndi kumasulira mtundu analakalaka gradations a mitundu yaikulu. Kupeza mtundu anakhumba pa polojekiti ayenera kusakaniza mu kufanana Napempha kwa mitundu yaikulu - chofiira (Red), zobiriwira (Green), ndi buluu (Blue). Choncho, kulowa mu RGB malamulo kwa mtundu woyera wofiira zikuwoneka ngati rgb (255,0,0). M'ndandanda amaika m'mabokosi kwa mtundu wobiriwira Adzaperekedwa ndi kusankha 0,255,0, kwa buluu - 0,0,255. Classically chikasu yosiyanasiyana kuphatikiza 255,255,0 ndi violet limafanana ndi malamulo 255,0,255. Zakuda chislosochetanie izo zikuwoneka ngati 0,0,0, woyera 255.255.255 ndi 192.192.192 imvi.

Chizindikiro pamwamba a mtundu wapatsidwa chifukwa ndi losavuta kumva, HTML 'kala' ikusonyeza ndi ntchito hexadecimal kalembedwe (HEX), limene limayamba ndi #. Pamene inu kulemba kachidindo HEX mtundu wakuda ankayimiridwa ngati # 000000, White - #FFFFFF, ndi imvi - # C0C0C0. Kabisidwe mitundu chachikulu wofiira, wobiriwira ndi buluu lidzaonekera # FF0000, # 00FF00, # 0000FF, motero.

The W3C amagwiritsa 16 mitundu, kuti HTML chomveka ndi CSS. Kwa iwo, kukhazikitsidwa kwa dzina la: Aqua (Aqua), buluu (buluu), wakuda (wakuda), ndi magenta (fuchsia), zobiriwira (obiriwira), imvi (imvi), mandimu kapena mandimu (laimu), ultramarine (bulu), Red (amtundu wina ), maolivi (azitona), wofiira (wofiira), magenta (wofiirira), siliva (siliva), woyera (woyera), bluish (Tilu) ndi chikasu (yellow). Chifukwa mitundu amene sali m'gulu mndandanda, ndi yolondola kwambiri kugwiritsa ntchito HEX kapena RGB code.

lingaliro la "mitundu otetezeka" ankakonda zaka zingapo zapitazo, Kuchepetsa osiyanasiyana mitundu ntchito polenga masamba, ukonde-kuti 216 mitundu. Development makompyuta wachotsa kukaniza onse pankhaniyi.