Ngohi. Ko te huānga ngohi. Nui o ngā āhuatanga ngohi, te maha o

Programming - ko te roa, tukanga auaha. pakeke nui ki te ako i te tahi mea i roto i tenei rohe, ki te whai koe i kahore kaha ki te matau i te mau parau tumu i nei kia hanga Apps. I teie mahana, e kōrero tatou e pā ana ki te ngohi, nga mea timatanga ngohi me ngā mahi ohie ki a ratou.

whakamāramatanga

I mua i te mahi ki tenei huānga o te taiao hōtaka , e ti'a ia tatou ki te matau ki ta tatou e e mahi. kia faahiti kaiako i roto i ngā whare wānanga o koutou whakamāramatanga ākahukahu, me te rapu utu koutou ki kaá 'ratou, engari e kore e mahuinga reira ki te mea nui tenei mataaro ki matau i te ngako, me te kore e taea ki te whakamārama i te reira ki ētahi atu. He aha te mea he ngohi? E tahi katoa nga huānga ngohi, me te hanga ake te ahanoa. I roto i te mau parau te tahi atu, he huinga, he tepu, he momo o uara aho. tahi Katoa hanga e ratou he rārangi taua o ngā tūemi. titiro reira ngohi rite tenei:

• M (i), kei hea M - ko te ngohi iho, tona ingoa. i - Ko te tau ngohi huānga. Fakataha, Ka taea te pānui i enei tau e rua rite te huānga i-th i roto i te ngohi M.

I roto i ngā reo hōtaka, e taea te whakaritea enei uara ki momo rerekē. Hei tauira, i roto i Pascal kia puta anake taua nama, me te tāupe kia i anake te tau tōpū momo. I roto i te PHP, he rerekē mea. He i - ko te matua e taea ai e koe te kitea te tūemi, a e kore e mea faufaa te reira i roto i te ngohi, ki te pai kia te kī te kupu katoa - ngohi ( "pae"). I roto i te raveraa i te reira, ka taea e te huānga ngohi kia tino tetahi momo.

huringa

He pai ki a tatou i roto i te whakaaro o te tahi mau ngā mahi ngohi tenei ariā. Huringa - he kīanga herenga mō te tukurua i te mahi taua i runga, me te mo ano rite te roa rite reira he kore hohokitanga o te huru. Ka taea te tāutuhia e rua ngā momo o huringa.

• "Ehara i ano." I roto i tenei take, ka kia korerotia te tinana o te koropiko noa ko reira te huru whakamutunga. Ko, counter huringa tuatahi, a ka ka tātai, a ka Aukatihia ai te huringa.
• "Na tawhiti." Ki tenei whakatinanatanga paku rerekē. Tuatahi, tirohia te huru mahia, ka mahi i te huringa hōtaka, a ka taui te counter.

I roto i te parau tumu, e ōrite kōwhiringa e rua, i roto i to tatou take e kore e mea faufaa te reira e tetahi ki te whakamahi i, engari ka waiho whai hua ia i tona tikanga.

tua

I roto i ētahi wā, me ki mohio he aha te mea te moni o nga āhuatanga o te ngohi te kaihātepe. I raro i tenei mahi fakahu'unga reira e ti'a ia tatou ki te whakakotahi i nga āhuatanga katoa o te ngohi. Ki te tenei ka e awhinatia matou huringa. I roto i tenei tauira, ka kore matou kia whakairihia ake ki runga i te reo ngā hōtaka, me te whakaahua i te rarangi e kia roto i te aho.

1. whakaatu tatou taurangi. E ti'a ia tatou ki te whakapuaki i te ngohi o 'M', te ngohi huānga tau counter "i", te tāupe tohu te maha o ngā huānga ngohi "ki", me te te tāupe "R", e e kawea tatou ki te hua mahi.
2. E tomo te maha o ngā huānga ngohi "ki" tetahi ara.
3. E tomo te huānga ngohi. Ka taea e koe te whakarite i te reira i roto i te raupapa o ngā kōrero ki te kaiwhakamahi ranei tautapa noa te uara ki ia takitahi.
4. tautapa tatou i = 1, R = 0.
5. Na te wahi faingataa. E ti'a ia tatou ki te koropiko. Ki te mahi i tenei, Me te tuatahi koe ki te tīpako i te momo. Kei raro hoatu e matou te tauira i runga i ngā huānga tatau huringa. Hei tauira, whakamahia matou te reo papatono - Pascal.

tukurua

R = R + M [i];

i = + i 1;

noa i> k

Eaha ta tatou e kite? oroko Tuatahi te huringa "tukurua" whakahau. I muri i taua, ko te uara o mua o te tāupe, te tikanga i te moni o nga āhuatanga katoa i roto i te ngohi, e tāpiri tatou tetahi atu āhuatanga o te ngohi. counter nuku (tau ngohi). Next, he rōpū o "tae noa ki" tirohia tatou haere mehemea kua te counter koropiko tera taha te ngohi. I muri i te katoa, ki te anake i tatou 5 huānga (k = 5), ka tāpiri i M [6] e kore e hanga tikanga, ka waiho i te reira kau.

huru

I mua i te neke i runga i ki te mahi i muri ki ngā huānga, kia haamana'o a te tauākī herenga. I roto i te nuinga o ngā reo hōtaka, rite tenei titiro te wetereo:

ki te (huru) ka (raupapa o whakahau) atu (faaue ki te kahore he pono te huru);

whakaahuatanga General kia tangi rite tenei: "Ki te he pono te huru, na tango te poraka tuatahi o whakahau, ki te hanga i te poraka tuarua ranei." tauākī Herenga e whai hua i roto i te whakatairite i ngā uara rerekē, me te atu te whakatau i to ratou "iku'anga". Fakataha ki te huringa, hei ratou he ngohi kaha o te tātari raraunga taputapu.

whakarite

E taea tonu ki a tatou hanga i te ngohi? Ka taea te kōmaka Elements o te ngohi, kite ki te ōrite ratou etahi tikanga, a ki te whakarite i waenganui i tetahi ki tetahi. Ko tētahi o aku tauira tino o ahorangi whare wānanga - ki te kitea te huānga mōrahi o te ngohi. Hei tauira, te whakamahi i te C ++ reo.

• Te kore te haere ki kōrero, he mea e tika ana ki te whakapuaki i te taua taurangi rite i roto i te tauira o mua, ki te torutoru aweretanga. Ki tetahi atu momo o te huringa i te tinihanga iti. Ko te take hou o "i = 0". He aha te mahi i te reira, whakamārama tatou i raro.

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