- Ukucindezelwa kwe-Delta kuhlukana kube iziteshi futhi kugcine umehluko ukuze kuthuthukiswe ukungasasebenzi.
- Ukusetshenziswa kwayo kusebenza kahle kudatha yethebula; gwema ukukuphoqa kokuqukethwe osekucindezelwe kakade.
- Ihlanganisa nezichazamazwi eziqinile, ezibanzi futhi, uma kufaneleka, ibanga elide/eliphelele.
Uma wake wakhangwa yinketho ethi "Delta Compression" ku-WinRAR futhi ungaqiniseki ukuthi yenzelwe ini, ufike endaweni efanele. Sizoyichaza ngokuningiliziwe, sigxile ekutheni kufanele nini ukuyisebenzisa, ukuthi isebenzisana kanjani nezinye izinhlaka ezithuthukisiwe, kanye nomthelela wayo wangempela kusayizi wefayela.
I-WinRAR inikeza isethi enamandla yezilungiselelo ezithuthukisiwe (i-delta, ukucindezela okusebenzayo kwe-x86, ukusesha okude, kanye nokusesha okuphelele) okungathuthukisa amazinga okucindezela ezimweni ezithile, yize ukusetshenziswa kwazo ngokungakhethi kungalibazisa inqubo noma kuyenze imiphumela ibe mibi kakhulu. Nasi umhlahlandlela ocacile onezibonelo nemikhuba emihle yokukusiza ukhethe izilungiselelo ezifanele.
Kuyini ukucindezelwa kwe-delta ku-WinRAR?
Ukucindezelwa kwe-Delta ku-WinRAR kuyisihlungi sokucubungula esihlukanisa ukusakaza kwedatha kube iziteshi eziningi ze-single-byte futhi sigcine umehluko (i-delta) phakathi kwezinto ezilandelanayo esiteshini ngasinye, esikhundleni sokugcina amanani okuqala. Le ndlela iwusizo uma kunezakhiwo eziphindaphindayo kanye nokwehluka okubushelelezi, njengamathebula athile noma uchungechunge lwezinombolo.
Ngokunciphisa ukuhlukahluka okubonakalayo kudatha , i-algorithm eyinhloko yokucindezela (i-LZ nama-algorithms afanayo) ithola ukuphindaphinda okude futhi ngaleyo ndlela ingapakisha ulwazi ngempumelelo enkulu. Akuyona inhlamvu yomlingo: ngedatha esivele icindezelwe noma engahleliwe kakhulu, isihlungi asisizi futhi singangeza isikhathi sokucubungula ngaphandle kwenzuzo.
Ungakudidanisi ne-HTTP Delta Encoding , edlulisa izinguquko kuphela uma kuqhathaniswa nenguqulo yangaphambilini yesisetshenziswa. Babelana ngegama elilodwa, kodwa bangamasu anezinhloso namazinga ahlukene.
Ipharamitha eyisihlungi se-delta yinani leziteshi , ezingasethwa ku-WinRAR phakathi kuka-1 no-31 uma zisetshenziswa kusukela kumugqa womyalo. Iziteshi eziningi zingaba usizo kudatha enezikhawu ezinde, kodwa ukuzingeza ngokungakhethi ngokuvamile kwandisa isikhathi sokucindezela ngaphandle kokunikeza izinzuzo ezengeziwe.
Isebenza kanjani: Iziteshi kanye nomehluko we-byte-by-byte
Uma usebenzisa isihlungi se-delta , i-WinRAR ihlukanisa ukusakaza kube iziteshi eziningana ze-byte eyodwa (isibonelo, ngokuhlanganisa izikhundla) futhi ibala umehluko olandelanayo ngaphakathi kwesiteshi ngasinye. Lokhu "kuthamba" koshintsho kwenza kube lula nge-compressor ukuthola ukuphindaphinda okude.
Ibanga lesiteshi elivunyelwe liyi-1 kuya ku-31. Ukukhetha elifanele kuncike kuphethini yakho yedatha: uma usola ukuthi ama-periodicity avamile noma izakhiwo zethebula ezibanzi, zama izinyathelo ezijwayelekile (4–8, 16, kanye no-31) bese ulinganisa umphumela. Uma kungekho ukuthuthuka okucacile, buyela kumanani aphansi noma uvumele i-WinRAR inqume.
Kudatha ephindaphindekayo kakhulu (isb., amathebula namarekhodi anezinkambu ezizinzile) i-delta ingenza umehluko omkhulu; noma kunjalo, ezithombeni ze-JPEG, umculo we-MP3 noma amavidiyo acindezelwe kakade, kunengqondo ukungakuphoqeleli ngoba ngeke kufake isandla ngalutho.
Lapho icushwe khona nokuthi ihlangana kanjani nezinye izindlela
Ku-interface yezithombe ye-WinRAR, ukucindezelwa kwe-delta kuyatholakala njengenketho ethuthukisiwe lapho usebenza namafayela e-RAR/RAR5. Akutholakali kumafayela e-ZIP. Kwabelana ngesikhala nezinye izindlela ezifana nokusesha okude, ukusesha okuphelele, kanye nesihlungi sama-executable angu-32/64-bit x86.
Emgqeni womyalo ilawulwa ngokuthi -mc, inketho enemisebenzi eminingi efomethi yayo ithi: -mc. Lapha, canales kuthinta kuphela i-delta, futhi modo ichaza isihlungi: D (delta), E (x86 executable), L (sesho lwebanga elide) kanye no-X (usesho oluphelele).
Okubalulekile mayelana nokuhambisana kwefomethi : Ku-RAR 5.0, kusekelwa kuphela izindlela D no-E. Izindlela L no-X azisebenzi ngaphansi kwalesi sitsha, ngakho-ke zizonganakwa noma zibikwe kuye ngenguqulo.
Uphawu ekugcineni lulungisa ububanzi: "+" iphoqa imodi ekhethiwe ukuthi isetshenziswe kuyo yonke idatha; "-" iyayikhubaza; ngaphandle kophawu, i-WinRAR inquma ngokuzenzakalelayo ngokusekelwe ohlotsheni lokuqukethwe kanye nendlela yamanje yokucindezela. Isilungisi -mc- ikhubaza zonke izindlela ngesikhathi esisodwa.
I-syntax yomugqa womyalo (-mc): izibonelo eziwusizo
Ukuphoqa i-delta kunoma yikuphi ungasebenzisa -mcD+. Uma futhi ufuna ukukhombisa iziteshi, zibeke ngemva kwalokho -mc: Ngokwesibonelo, -mc31D+ zama ukusebenzisa iziteshi ezingu-31 ezine-delta ephoqelelwe.
Ukuze ukhubaze zonke izihlungi (delta, x86, ibanga elide, eliphelele) nje -mc-Uma ukhetha ukuvumela i-WinRAR inqume ngokuzenzakalelayo, shiya ngaphandle uphawu futhi uhlelo luzokhetha ngokusekelwe kudatha.
Isibonelo sakudala sosizo: nika amandla isichazamazwi esiqinile, esingu-1GB nosesho oluphelele eqoqweni lemibhalo:
WinRAR a -s -md1g -mcx texts *.txtKulokhu, imodi engu-X (ephelele) isho ukuthi usesho lwebanga elide lusebenza ngokuzenzakalelayo.
Usesho Lwebanga Elide kanye nomthelela walo
Ukusesha okude kuthola amabhlogo amakhulu, akude, aphindaphindwayo , okungathuthukisa ukucindezela futhi ngezinye izikhathi ngisho nesivinini kudatha engafuneki kakhulu (isb., i-corpora yombhalo omkhulu). Kudinga inkumbulo eyengeziwe ngesikhathi sokucindezela kodwa akuthinti isivinini sokunciphisa ukucindezela noma ukusetshenziswa kwezinsiza.
Ukutholakala ngokwezinga lendlela: ingasetshenziswa ngezindlela zokucindezela kusukela ku-"Fast" kuya ku-"Best" (cishe -m2..-m5) futhi ishaywa indiva kokuthi "Ngokushesha kakhulu" (-m1). Lokhu kuwusizo ikakhulukazi lapho usebenza nezichazamazwi ezinkulu.
Ukwenza kusebenze okuzenzakalelayo ngezichazamazwi ezinkulu: Ngosayizi wesichazamazwi abakhulu kuno-4 GB, i-WinRAR iyayidinga futhi iyenza isebenze ngokuzenzakalelayo. Ezinye izincazelo zibonisa ukuthi isixhumi esibonakalayo singaziba inketho yokusikhubaza, nakuba amaswishi anjalo -mcl+ y -mcl- ikuvumela ukuthi uyiphoqe noma uyivale emugqeni womyalo kuye ngenguqulo.
Ukusesha okuphelele: uma kukhokha ukukusebenzisa
Ukusesha okuphelele kuyindlela ejulile kakhulu futhi ehamba kancane enganciphisa ukuthuthukiswa kokucindezelwa okwengeziwe kusuka kudatha ethile engadingeki. Izindleko zayo zicacile: isikhathi sokucubungula sanda kakhulu.
Kuncike ekusesheni okude ; i-WinRAR iyenza isebenze ngokuzenzakalelayo uma ukhetha imodi yokuskena ephelele. Uma isikhathi singeyona isithiyo futhi isethi yedatha ifanelekile, ingase ibe usizo.
Ukucindezelwa kwe-x86 executables (32/64 bits)
I-WinRAR ihlanganisa isihlungi esithile samabhinari we-x86 okuvamise ukuthuthukisa ukucindezelwa kwe-32- kanye ne-64-bit executable ngokwenza izakhiwo zekhodi ezithile zibikezeleke kakhudlwana. Ku-CLI, ikhethwa ngemodi E ngaphakathi -mc.
Sebenzisa lokhu kuphela uma okuqukethwe empeleni kuyikhodi ye-x86 esebenzisekayo ; ngaphandle kwalokho, ungalindeli noma yiziphi izinzuzo, izindleko zesikhathi esincane ezengeziwe. Ekucushweni kwe-WinRAR komlando, uzobona izinkomba zezinketho ezifana nokuthi "Vumela ukucindezela kwe-32-bit (Pentium)" kanye ne-"64-bit (Itanium)," konke okuhlobene nomqondo ofanayo wokucubungula ama-binaries kusengaphambili.
Izindlela Zokucindezela Zomhlaba Wonke: Ukusuka "Isitoreji" kuya "Kungcono Kakhulu"
Ngaphandle kwezihlungi, i-WinRAR inikeza izindlela eziyisithupha : "Isitoreji" (akukho ukucindezela), "Okusheshayo," "Okusheshayo," "Okujwayelekile," "Okuhle," kanye "Okungcono Kakhulu." Ukuthuthukisa izinga kwandisa ukucindezela ngezindleko zesikhathi eside sokucubungula.
Isikhathi sokukhetha ngayinye : "Okusheshayo" kulungele ama-backup ansuku zonke, "Okujwayelekile" kuvame ukulinganisela ukusetshenziswa kwansuku zonke (isb., okunamathiselwe nge-imeyili), kanye nokuthi "Okungcono Kakhulu" kuyagqama lapho ukunciphisa usayizi wokusatshalaliswa kwe-inthanethi kubaluleke kakhulu.
Ukukhetha ifomethi : I-ZIP iyi-wildcard enhle yokuhambisana uma ungazi ukuthi yiliphi ithuluzi umamukeli azolisebenzisa ukukhulula amafayela; uma unenketho, i-RAR (kufaka phakathi i-RAR5) inikeza izici ezengeziwe kanye nokucindezelwa okungcono ngokuvamile. Izinketho eziningi zokucubungula kwangaphambili ezithuthukisiwe azitholakali ku-ZIP.
Usayizi wesichazamazwi: inkumbulo, isivinini kanye nenzuzo
Isichazamazwi yindawo yenkumbulo esetshenziswa yi-algorithm ukuthola amaphethini . Uma inkulu, inikeza umongo omningi futhi, mhlawumbe, izilinganiso zokucindezela zamafayela amakhulu kanye nokucindezela kwesimo esiqinile zingcono, yize ukucindezela kuzohamba kancane futhi kudinga inkumbulo eyengeziwe enkambisweni.
Amanani anconyiwe esiqondiso : 4 MB yefomethi ye-RAR yakudala kanye no-32 MB we-RAR5 yizindawo ezinhle zokuqala. Ukusuka lapho, khulisa usayizi uma imishini yakho kanye nesimo sakho kuvumela lokho, ukhumbula ukuthi izici ezifana nokusesha okude ziba zibaluleke kakhulu ngezichazamazwi ezinkulu.
Ukucindezelwa Okuqinile: Lokho Okuzuzayo nalokho Okudelayo
Ifayela eliqinile liphatha amafayela amaningi njengokusakaza okuqhubekayo., okuvumela ukuthi uthole ukuphindaphinda phakathi kwamafayela ahlukene futhi uthuthukise ngokuphawulekayo ukucindezela lapho kunamafayela amaningi amancane nafanayo. Yenziwe yasebenza ngebhokisi lokuhlola elithi "Dala ingobo yomlando eqinile" noma nge -s umugqa womyalo
Izinkinga ezinkulu : Ukubuyekeza ingobo yomlando eqinile kuhamba kancane; ukukhipha ifayela eliphakathi kwengobo yomlando kudinga ukucubungula amafayela angaphambilini; futhi uma ingxenye eyodwa yonakele, amafayela alandelayo angase angafinyeleleki. Kumidiya engathembekile, vumela ukuqopha kabusha.
Ukushuna kahle nokulawula: I-WinRAR imvamisa ihlunga ngokwesandiso ukuze ithuthukise ukusebenza kokuqinile; ungakhubaza lokho kuhlunga ngakho -DS noma uchaze elakho usebenzisa ifayela elikhethekile rarfiles.lst. Amavolumu kanye ne-SFX (ukuzikhipha) nakho kungaba okuqinile.
Yiziphi izinhlobo zamafayela ezicindezela kakhulu (futhi yimaphi angawacindezeli)
Akukho silinganiso sokucindezela esiqinisekisiwe sazo zonke izimo . Ifayela ngalinye lihlukile: amanye ancipha ngaphezu kuka-90%, amanye awashintshi kangako, noma akhule ngisho nangenxa yokusetshenziswa kwesikhwama.
Kunzima noma akusizi ngalutho ukucindezela : amafayela asevele ecindezelwe (i-ZIP, i-7z, i-RAR, i-BZip2), izithombe ezinokucindezelwa kwangaphakathi (i-JPEG, i-PNG, i-GIF), umculo (i-MP3, i-WMA), ividiyo (i-AVI, i-MPG, i-WMV) kanye namadokhumenti e-Office yesimanje (i-DOCX, i-XLSX) ngokuvamile anikeza ukunciphisa okuncane noma akukho nhlobo.
Lapho uthola khona : umbhalo ocacile, i-CSV, i-JSON, ikhodi yomthombo, amalogi, kanye nedatha ephindaphindayo ngokuvamile. Yilapho izihlungi ezifana ne-delta ne-x86, isichazamazwi esihle, kanye nemodi eqinile kungenza umehluko.
Izihlungi ze-multimedia zakudala kanye namaphrofayili omlando
Ezinguqulweni ezindala kanye nemibhalo yomlando ye-WinRAR, uzothola amaphrofayili afana ne-"Text" (prediction), "Sound" (channels), kanye ne-"True Color," kanye nenketho yokuvumela ukucindezelwa kwe-32/64-bit x86 kanye ne-delta. Lokhu kuguqulwa kwenzelwe ukwenza ukugeleza kwedatha kuhambisane kakhulu kuye ngohlobo lwedatha.
Izibonelo zokulungiswa okuphawuliwe : amanani anjenge-“Prediction 63” ku-“Text” noma “Channels 31” ku-“Sound” asebenza njengesiqondiso samasethi edatha athile, kodwa kuhlale kunconywa ukukala. Ukusebenzisa izihlungi ngokungakhethi kunganciphisa ukusebenza ngaphandle kokuthuthukisa ukucindezelwa.
Imikhuba emihle yokusebenzisa ukucindezela kwe-delta
Hlola okuqukethwe ngaphambi kokuphoqa i-delta : uma usebenza ngamathebula, idatha yezinombolo, noma uchungechunge olunezinguquko eziqhubekayo, hlola isihlungi. Gwema ukusiphoqa ku-multimedia esivele icindezelwe.
Qala ngokuzenzakalelayo bese uqhathanisa : vumela i-WinRAR inqume, ilinganise isampula, bese uzama ukuphoqa i-delta. Uma usayizi ungathuthuki kancane futhi isikhathi sanda, akufanele.
Ukusebenzisana okuvame ukusebenza : I-Delta isebenza kahle kumasethi edatha aqinile anezichazamazwi eziningi lapho isethi yedatha ifana. Emaqoqweni axubile, hlukanisa ngohlobo noma sebenzisa ukuhlunga ngezinga ukuze uthande ukufana okuseduze.
Iziteshi ezinekhanda : ungalinganisi ukuze ulinganise. Zama u-4–8, 16 no-31 uma usola ukuthi i-periodicity iyanda; yeka lapho i-gain incipha.
Isixhumi esibonakalayo esibonakalayo ngokumelene nomugqa womyalo
Kusukela ebhokisini lengxoxo elithi "Igama lefayela namapharamitha" , khetha ifomethi ye-RAR/RAR5, chaza indlela ("Isitoreji" kuya ku-"Okuhle Kakhulu"), usayizi wesichazamazwi, bese, kuthebhu ethuthukisiwe, vumela noma ushiye ku-delta ezenzakalelayo, i-x86, ibanga elide, kanye ne-exhaust. Hlola okuthi "Dala ingobo yomlando eqinile" uma isimo sidinga lokho.
Ku-CLI, bhala amaswishi akho: -m5 ngendlela engcono kakhulu, -s okuqinile, -md64m (isibonelo) sesichazamazwi, -mcD+ ukuphoqa i-delta, -mcl+ ngebanga elide futhi -mcx ngokusesha okuphelele (inika amandla ibanga elide ngokusobala). Khumbula: ku-RAR5 ungasebenzisa kuphela u-D no-E ngaphakathi -mc.
Okulindelwe okungokoqobo nokulinganisa
Akekho ongathembisa "ukucindezela njalo ngo-X%" . Okuqukethwe yikho okuqondisa umphumela. Kunezimo ezinhle kakhulu nezincane kakhulu. Okulawulayo yisethi yezinketho kanye nesikhathi ozimisele ukusisebenzisa ekucindezelweni ngakunye.
Dala iphrofayili yokucindezela okuzenzakalelayo ngezilungiselelo zakho ozithandayo (isb., i-RAR5, eqinile lapho kufaneleka khona, indlela ethi "Kuhle" noma "Kungcono", isichazamazwi esinengqondo) futhi, ngemithwalo ethile yokukhokha efana nedatha yethebula, vumela ukucindezela kwe-delta bese uqhathanisa kusampula. Uma usabalalisa kubantu besithathu, cabanga ngokuhambisana: I-ZIP iqinisekisa ukuvulwa kwendawo yonke, kuyilapho i-RAR/RAR5 idinga amathuluzi ahambisanayo kodwa inikeza amazinga okucindezela angcono kanye nokulawula okwengeziwe.
Uma bekufanele ngikufinyeze kube ngumqondo owodwa oyinhloko : sebenzisa i-delta njenge-scalpel, hhayi i-hallet; hlanganisa izihlungi ngokuhlakanipha, sebenzisa i-solid kanye nezichazamazwi uma kukhona ukufana kwangempela phakathi kwamafayela, bese uthembela kumodi ezenzakalelayo ye-WinRAR njengendawo yokuqala ngaphambi kokuphoqa izinketho ezithuthukisiwe.