Iluhlu yilokhu ukubonakalisa okulandelwe. Ituple yilokhu ukubonakalisa okulandelwe. Isethi yilokhu ukubonakalisa okungalinganiselwe. Isichazamazwi yilokhu ukubonakalisa okungalinganiselwe lokhu okugcina imininingwane eziyinkinobho-nenani.
Yini iluhlu ngokulinganisela ngezethi ku-Python?
Iluhlu yilokhu njengesayizi esishintshayo ye-array eyenziwe ezilimi ezinye (Arraylist ekamelweni le-Java, vector ekamelweni le-C++). Ituple zibhekisela emikhakheni eyahlukene yezinto ze-Python ezahlukaniswe ngamakhoma phakathi kwazo. Izethi yilokhu ukubonakalisa okungalinganiselwe kweminye imininingwane.
Yini iluhlu ngokulinganisela nesichazamazwi?
Iluhlu ne-tuple yilokhu ukubonakalisa okulandelwe kwemikhiqizo. Isichazamazwi yilokhu ukubonakalisa okungalinganiselwe. Izinto zoluhlu ne-sichazamazwi ziyaguqulwa i.e. kungenzeka ukwengeza into entsha noma ukususa into kuyo. Ituple yilokhu okungaguqulwa.
Yini isethi () ku-Python?
Inhlanganisela ye-Python set()
Inhlanganisela ye-set() idala isethi. Amathemba esethini alinganiselwe, ngakho azovela ngendlela engaziwa. Funda ngaphezulu mayelana nezethi kuchaputha Python Sets.
Okuphuthumayo kakhulu yini phakathi kwiluhlu, iTuple, iSethi kanye nesiChazamazwi?
Ukudala ituple kushesha kunokudala iluhlu. Ukudala iluhlu kuyancipha ngoba amabhlokhi we-memory ababili kufanele afinyelelwe. Isici setuple asikwazi ukususwa noma ukushintshwa. Isici soluhlu singasuswa noma sishintshwe.
Ukuqhathaniswa phakathi kwiluhlu, iTuple, iSet kanye nesiChazamazwi
Kungani ukusetshenziswa kwama-tuple kunokwamalisti?
Ama-tuple anamakhono amaningi okugcina isikhathi kunalama-listi. Uma sikhuluma nge-efficiency yosikhathi, ama-tuple anezinzuzo ezincane kunama-listi ngokukhethekile uma sicabangela ukufuna inani. Uma unenani elingashintshi, kufanele ukhethe uhlobo lwedatha lwe-tuple ngaphezu kwamalisti.
Yizipho ezithile ezimweni?
Isethi iyisipho esiyimweni, lokho kusho ukuthi singasusa noma sifaka izinto kuyo. Isethi e-Python ifana neset yezibalo, futhi kungenziwa imisebenzi efana nokuphikisana, ukubhuka, ukuphikisana ngokugcwele, nokunye.
Kungani ngivame ukusetshenziswa kwesethi e-Python?
Izinzuzo zesethi e-Python
Ngenxa yokuthi izipho azikwazi ukuba nezenzo ezifanayo zezinto eziyisikhathi esisodwa, lokhu kwenza izipho zibe nesisekelo esihle kakhulu sokususa izinto eziphindekayo kusukela kuluhlu noma kuma-tuple futhi ukwenza imisebenzi yezibalo ejwayelekile njenge-union no-intersection.
Ingaba isethi inezinto eziphindekayo?
Isethi iyisikhulumi esingakwazi ukugxilisa izinto eziphindekayo. Iyigama lesibalo elingasetshenziswa.
Yini umehluko phakathi kwaluhlu nesethi e-Python?
Izipho azikho zihleliwe. Ama-listi ayisipho esingaguqulwa. Izipho ziyashintsha kodwa zilondoloza kuphela izinto ezingashintshwa. Izinto zingaguqulwa noma zibuyiselwe emuva kuma-listi.
Senzeni ukuba siphawule phakathi kwe-tuple nezilolongwe?
Ukuphawula okukhulu phakathi kwe-tuple nezilolongwe ukuthi amathupha ayigugu kanti izilolongwe zigugu. Ngakho-ke, kungenzeka ukushintsha ilolongwe kodwa hhayi ithupha. Okuqukethwe kwe-thupha akunakushintshwa uma sekudaliwe kuPython ngenxa yokugugwa kwe-thupha.
Yini i-set vs i-dict?
Isichazamazwi singagcwaliswa ngexesha lokugcina lokuguqulwa. Isethi nesichazamazwi ziyafana nje, kuphela ukuthi isethi alinamaphutha-ivela kanye nokubonakala kwamagama angcolile. Singasebenzisa noma isenzo sithola(iqhosha, okuzenzakalelayo) .
Khona ama-set ku-Python?
Isethi yilona elilodwa kwezinhlobo ezine zezinhlobo zezimali ezenziwe ku-Python ukuze zilondoloze izikhwama zezimali, ezinye eziyisithupha kuyi-List, iTuple, kanye ne-Dictionary, zonke ngezici ezahlukahlukene nezisebenziso. Isethi yisikhwama esingalolongiswa, esingashiwo*, futhi esinganamakhosi. * Qaphela: Izinto zesethi azinakushintshwa, kodwa ungakhipha izinto futhi ungeza izinto ezintsha.
Kungani ama-set asheshisa kunalolongwe?
Ama-set awakwazi ukuba nawo amaphutha, futhi awohlala aphelile. Ama-set asisebenzisa ukusha ukuze aqaphele ukubheka okwenza asheshise kakhulu kunalolongwe ngalokhu. (Kwesibonelo sesenzo, ikhodi elisebenzisa izilolongwe yathatha imizuzwana engama-45 ukuba iqhubeke, noma ngabe ikhodi yama-set yathatha okungenani ikhota elilodwa!)
Yini umehluko phakathi kwilisti nesethi?
Ilisti yindlela yokulandela yezakhiwo ngesisekelo, ngesethi yilisti eqondile yezakhiwo engenakulandela.
Yini inzuzo yesethi ngaphandle kwilisti?
Ngokuhluka kwama-listi, amasethi awugcini idatha elandelayo. Ama-listi anezakhiwo ezifinyelelwe futhi zihlukaniswe, okusho ukuthi ngamunye umuntu uzotholakala. Akukho indlela yokufinyelela isakhiwo esisodwa sesethi ngoba awaphekiwe ukuhlela. Kodwa, hhayi yonke idatha edingekayo ukuba ihlelwe.
Ingabe isethi ingaba namakhono amabili afanayo?
Isici esiyinhloko sesethi ukuthi singaba namakhono, futhi abizwe ngokuthi ama-lungu. Amasethi amabili alingana uma anezakhiwo efanayo. Ngokucacile, amasethi A noB alingana uma wonke umuntu we-A uyisakhiwo se-B, futhi wonke umuntu we-B uyisakhiwo se-A; lesi sici sibizwa ngokuthi ukwandisa kwamasethi.
Ingabe isethi ingaba nezimpawu ezifanayo ezimbili?
Amasethi awakwazi ukugcina iziphindaphindi. Iziphindaphindi ziyasuswa uma kusungulwa isethi. Uma kufakwa isakhiwo esisethini, futhi lesi sakhiwo sikhona sesethi, isethi ngeke shintshe.
Ingabe isethi iyashintsha noma ayishintshi kuPython?
Amasethi ayashintsha. Kodwa, ngoba awalandelayo, ukuhlela kungekho kahle. Asikwazi ukufinyelela noma ukushintsha isakhiwo sesethi ngokuhlela noma ukuqeda. Uhlobo lwedatha lwe-seti alisekeli lokho.
Yini izinhlobo ezine zedatha ezakhiwe kuPython?
I-Python futhi inikeza izinhlobo zedatha ezakhiwe, ngokukhethekile, idikithi, ilisti, isethi kanye ne-frozenseti, kanye nentatheliswa.
Isethi liyisigaba esingaguqulwa ku-Python?
Isethi ku-Python
Isethi yilokho ukusetha okungehlukanisiwe kwento eziyisigaba ku-Python. Yonke imikhiqizo yesethi iyinhloko-mpikiswano, lokho kusho ukuthi akukho okufanayo kusetshenziswa. Futhi, imikhiqizo yesethi ayiguqulwa, lokho kusho ukuthi ayikwazi ukushintsha. Kodwa, isethi yodwa iyaguqulwa ku-Python.