Impendulo engcono kakhulu: Uyibhala kanjani i-loop ku-Unix?

Uyibhala kanjani iluphu kusikripthi segobolondo?

Ngaso sonke isikhathi lapho i-loop iqalisa, inani le-variable var lisethwa egameni elilandelayo ohlwini lwamagama, elithi1 kuya elithiN. I-loop kuze kube yilapho isetshenziswa izikhathi eziningi lapho isimo/umyalo uhlola ukuthi amanga. Iluphu iyanqamuka lapho isimo/umyalo uba yiqiniso.

Uyibhala kanjani iluphu ku-bash?

I-loop izothatha into ngayinye ohlwini (ngokulandelana, enye ngemva kwenye), yabela leyo nto njenge- Inani kwe-variable var, khipha imiyalo phakathi kokwenza nokwenza bese ubuyela emuva phezulu, ubambe into elandelayo ohlwini bese uphinda futhi. Uhlu luchazwa njengochungechunge lwezintambo, ezihlukaniswa yizikhala.

Yisiphi isibonelo se-loop?

Kusetshenziswa iluphu ethi “For” ukuphinda ibhulokhi ethile yekhodi inombolo eyaziwayo yezikhathi. Isibonelo, uma sifuna ukuhlola ibanga lawo wonke umfundi ekilasini, sixhuma ku-1 kuya kuleyo nombolo.

Yini i-$? Ku-Unix?

I-$? okuguquguqukayo imele isimo sokuphuma somyalo odlule. Isimo sokuphuma siyinani lenombolo elibuyiswa yinoma yimuphi umyalo lapho uqedwa. … Isibonelo, eminye imiyalo ihlukanisa phakathi kwezinhlobo zamaphutha futhi izobuyisela amanani ahlukahlukene okuphuma kuye ngohlobo oluthile lokwehluleka.

Uyisebenzisa kanjani i-loop engapheli kusikripthi segobolondo?

Ukusetha okungapheli ngenkathi sebenzisa iluphu:

1. umyalo weqiniso - ungenzi lutho, ngempumelelo (ibuyisela njalo ikhodi yokuphuma 0)
2. umyalo wamanga - ungenzi lutho, ungaphumeleli (ihlala ibuyisela ikhodi yokuphuma 1)
3. : umyalo - akukho mphumela; umyalo awenzi lutho (uhlala ubuyisela ikhodi yokuphuma engu-0)

Uyibhala kanjani i-loop ku-Linux?

I-syntax eyisisekelo ye-loop ithi: okwe kwe ; yenza $;kwenziwe; Igama eliguquguqukayo lizoba inguquko oyicacisayo esigabeni se-do futhi izoqukatha into kuluphu okuyo.

Siyini isakhiwo sokulawula iluphu?

Izakhiwo zokulawula shintsha ukugeleza okulandelanayo okuvamile kokwenziwa kwesitatimende. Amaluphu avumela ibhulokhi yezitatimende ukuthi isetshenziswe ngokuphindaphindiwe ngaphandle kokuzibhala phansi izikhathi eziningi.

Ngilisebenzisa kanjani ifayela le-.sh?

Indlela ye-GUI yokusebenza . sh ifayela

1. Khetha ifayela usebenzisa igundane.
2. Chofoza kwesokudla efayeleni.
3. Khetha Izakhiwo:
4. Chofoza ithebhu yezimvume.
5. Khetha okuthi Vumela ukusebenzisa ifayela njengohlelo:
6. Manje chofoza igama lefayela futhi uzocelwa. Khetha okuthi "Run in the terminal" futhi izokwenziwa kutheminali.

Yiziphi izinhlobo ezi-3 zamaluphu?

Amaluphu yizakhiwo zokulawula ezisetshenziselwa ukuphinda ingxenye ethile yekhodi inombolo ethile yezikhathi noma kuze kube yilapho kuhlangatshezwana nesimo esithile. I-Visual Basic inezinhlobo ezintathu eziyinhloko zamaluphu: okwe.. izihibe ezilandelayo, yenza izihibe futhi ngenkathi izihibe.

Siyini isitatimende se-loop ngenkathi?

Uhlolojikelele. I-loop yesikhashana isitatimende sokugeleza esilawulayo esivumela ikhodi ukuthi isetshenziswe ngokuphindaphindiwe ngokusekelwe kusimo se-Boolean esinikeziwe. Iluphu yesikhathi ingacatshangwa njengokuphindaphinda uma isitatimende.

Iyini i-loop nezinhlobo zayo ngesibonelo?

C - Izihibe