Coding html. Kamar yadda aka rina shafin yanar gizo

A matsayin hanyar da shigar da bayanai domin ta watsa a kan Internet amfani da html coding. Kayyade siga a lokacin da wannan tsari da aka actuated, yawan ragowa yana daukar kwayar cutar zuwa gare su via wani takamaiman alama. Saboda haka daya bit encodes biyu daga dabi'u, biyu ragowa aka tsara don shigar da hudu dabi'u, uku ragowa - takwas. Ƙara ragowa, za ka iya ninka yawan shigar wanda ke aiki dabi'u. Saboda haka, 8 ragowa iya encode jerin 256 (dabi'u) a binary code. A sananne alama ne cewa ga kowane jerin ne kiyaye ikon aika da wani rubutu hali. An madadin tsarinsa na takwas ragowa ne coding a 16 da kuma 32-bit, suna da ƙarfi da aiki 65.536, bi da bi, 4294967296 rubutu haruffa.

Bude hada da browser na Windows Internet Explorer, za ka iya a cikin menu "View - Zabi lullube haruffa 'a ga wani dogon jerin daban-daban sakonnin imel. Ka tuna cewa Rasha html coding aka wakilta shida babban alluna cewa goyi bayan QFontDatabase haruffa. Mafi na kowa daga gare su - Windows-1251, sa'an nan su bi-8859-5 da ISO, da UTF-8, koi-8R, koi-8U , kuma suna da wani Rasha-harshen coding ga Mac yanayi.

Coding html iya daidai nuna bayanai a kan wani shafin yanar gizo. Saboda da data kasance yarjejeniya da aka yi musayar tsakanin uwar garken da kuma wani web browser sabis bayanin da ya ƙunshi m data a kan hanyar amfani da tsarinsa da rubutu.

Amfani da HTTP yarjejeniya, yana da za'ayi aiwatar da aika wani web browser a uwar garken Saƙon, wanda samu, da uwar garken retrieves da ake so page da kuma fassara shi (recode) a cikin bukata format. A babu wani daftarin aiki a kan uwar garke (a Web page), shi ne zama dole don zaɓar da ya dace coding kanka (hannu).

Coding html ba ka damar kafa da sigogi na sauke shafin yanar gizo. Bayan duk, a kan daidai ji na shi ya dogara da mai amfani da browser ranked yanar gizo hanya. Alal misali, ko da launuka amfani a kan page aka bayyana ta da code.

Coding html launuka faruwa ta fassara da ake so launi a amintaccen ingancin na farko launuka. Don samun ake so launi a duba dole ne a gauraye a so rabbai na primary launuka - ja (Red), kore (Green), da kuma shudi (Blue). Saboda haka, shigarwa a cikin RGB code ga m ja launi kama RGB (255,0,0). Tazarar sa cikin baka ga koren launi za a gabatar da wani zabin da 0,255,0, domin blue - 0,0,255. Classically rawaya launi masu lamba hade 255,255,0 da kuma Violet yayi dace da code 255,0,255. A baki chislosochetanie shi ya dubi kamar 0,0,0, da fari 255.255.255 da 192.192.192 launin toka.

A bisa misali na launi aka bai wa tsabta, html coding ne don amfani da hexadecimal tsarin rubutu (HEX), wanda ya fara da #. Lokacin da ka rubuta code HEX baki launi da aka wakilta a matsayin # 000000, White - #FFFFFF, wani m - # C0C0C0. Tsarinsa na farko launuka ja, kore da kuma blue zai kama # FF0000, # 00FF00, # 0000FF, bi da bi.

A W3C yana amfani da 16 launuka, don inganci HTML da CSS. Domin su, da tallafi da sunan: Ruwa (Ruwa), blue (blue), baki (baki), a magenta (fuchsia), kore (green), da launin toka (m), lemun tsami ko lemun tsami (lemun tsami), ultramarine (sojojin ruwa), Red (Maroon ), zaitun (zaitun), ja (red), magenta (m), da azurfa (azurfa), fari (fari), bluish (teal) da kuma rawaya (yellow). Domin launuka da cewa ba su hada da a cikin wannan jerin, shi ne mafi daidai to amfani da HEX ko RGB code.

manufar "hadari launuka" ya na kowa 'yan shekaru da suka wuce, iyakance kewayon launuka amfani a cikin halittar shafukan yanar gizo, shafin yanar-to 216 launuka. Development of fasahar kwamfuta Ya cire duk hane-hane a wannan batun.