Txheej txheem cej luam: Nab hab sej ib tug programming lug nrov tshaj plaws yog siv rau lub hom phiaj kev programming. Qhib tau qhov twg los yog, haib, saj zawg zog thiab yooj yim rau kev kawm tau/siv/siv. Nab hab sej muaj haib hlauv taws xob thiab qiv rau cov ntaub ntawv ua, manipulation thiab analytics ua hauj lwm. Nws yog zoo li C , Java thiab Matlab, ces developers kawm tau nws yooj yim heev yog hais tias lawv muaj ib co kev cov lus. Tam sim no ib hnub, Nab hab sej siv nyob rau kev siv cov ntaub ntawv loj, analytics thiab quantitative programming.
Nyob rau cov tshooj no, peb yuav muab kev txhawb sej thiab qhov tseem ceeb rau kev siv cov ntaub ntawv loj. Peb kuj yuav muaj ib tug nyuag saib ib co ntawm cov dab neeg zoo le sej.
Tej keeb kwm yav dhau los ntawm nab hab sej: Nab hab sej twb lig 1980s xeeb ua ntej thiab yuav pib siv ntawd pib thaum lub 1989 los ntawm Guido Van Rossum. Nws yog ib cov xeeb leej xeeb ntxwv uas ABC lus. Lub npe ‘Nab hab sej‘ yog derived ntawm ' Monty Python ya Circus‘ – ib British TV series. Nab hab sej yog tsim ua tus qhib tau qhov twg los (OSI pom zoo) yog ib qhov uas tau muab siv thiab faib txawm nyob rau tej chaw. Lub philosophy ntawm sej yog los ua lub chaws tshwmsim ntau thiab sau kom tsawg dua cov kab ntawm txoj kev siv lub ntsiab lus. Nws txhawb programming ntau paradigms nyiam paj nruas-oriented, Structured, txheej txheem thiab ua haujlwm zoo thiab lwm yam.
Nab hab sej 2.0 tuaj nram khw xyoo 2000 thiab cov version 3.0 Txawm nkag tau rau hauv lub xyoo 2008. Nab hab sej lub dag lub zog loj tshaj yog nws cov tsev qiv ntawv txheem uas muaj cov cuab yeej rau yeej muaj ntau yam kev pab raws qib. Nyob rau hauv Jan.2016, peb tau txais Nab hab sej pob Index, Nws yog tus thib software repository rau nab hab sej. Nws muaj ntau tshaj 72,000 tej pob khoom rau ntau yam kev pab raws qib.
Nab hab sej nta
Nyob rau saum toj no muaj khej, peb tau txais ib lub tswv yim txog sej thiab cov keeb kwm. Tam sim no peb mam saib mus rau hauv cov yam ntxwv ntawm sej uas tau ua rau nws nrov rau ntau yam kev siv nrog rau tej ntaub ntawv loj loj thiab analytics. Wb nug nws!
Txhais lus: Nab hab sej yog txhais lus. Nws txhais tau hais tias, koj ua tus tsim tawm tsis tau mus compile qhov kev pab cuam thiab ces khiav nws. Theej, tus neeg txhais lus yuav parse rau koj qhov kev pab cuam thiab ua kom muaj qhov zis. Li ntawd, tsim daim ntaub ntawv thaum uas siv cov nab hab sej yog yooj yim ntau dua piv rau lwm haiv lus compiled.
Dynamically ntaus lus: Ib tug kuj sib txawv thiab hauv 'Sej' cas yuav txhais. Li ntawd, tus developers tsis tas sau ntsees. Piv txwv, Yog hais tias peb sau ntawv cov lus hauv qab no syntax, ces hom kuj sib txawv thiab cov ' pyvar’ yeej txhais tias 'Hlua'.
[chaws] pyvar = “Nyob zoo TechAlpine” [/chaws]
Tam sim no, Yog peb hloov cov kab li nram qab no, ces kuj sib txawv thiab qhov yog yam 'rau cov menyuam'.
[chaws] pyvar = 1 [/chaws]
Yog li ntawd, nws pab txoj kev yooj yim npaum li cas.
Ceeb toom: Nab hab sej tsab ntawv tsis xaus nrog lub semicolon (;)
Lus xav ntaus: Nab hab sej yog ib hom lus xav typed. Ces tus conversion ntawm ib hom ntaub ntawv rau lwm yam ntaub ntawv tsis pub. Yog koj sau tau cov nqe lus nram qab no, ces nws yuav ua tau ib qho kev ua yuam kev. Vim tus conversion no ntawm xib rau cov menyuam’ los ' hlua’ nws tsis tau tas. Li ntawd, tus developers yuav hloov ua lwm yam nws ntsees ua ntej lawv concatenating.
[chaws]
“TechAlpine yog tooj" + 1 + “nyob rau hauv qhov chaw e-kev kawm”
[/chaws]
Tsis muaj chaws ntau siv: Cov nab hab sej biggest kom zoo dua yog 'code tsawg thiab ua ntau yam zog'. Nws txhais tau tias developers ua tau tib neeg ua hauj lwm los ntawm sau ntawv tsawg chaws piv rau lwm haiv lus. Kom ceev daim ntawv thov kev pab nws. Piv txwv, Tom qab code snippet yog txaus nyeem ib daim ntawv nyob rau hauv Python.
[chaws]
qhib(“tshiabfile.txt”) ua ntaub ntawv:
luam(nyeem ntawv())
[/chaws]
Multi paradigm programming kev them nyiaj yug: Python txhawb kev sib txawv programming paradigms xws li khoom oriented programming, kev pab ua tau hauj lwm, qauv programming thiab ntau ntau. Li ntawd, cov developers yuav ua raws li tej kev pab cuam style li ib tug yuav tsum tau.
Tsev qiv ntawv txheem: Python muaj ib tug nplua nuj heev tsev qiv ntawv uas ntau yam cuab yeej thiab APIs. Nws yuav luag txhua lub functionalities rau txoj kev loj hlob.
Chaw nres nkoj, xyaum thiab xyaum ua tau: Python yuav khiav rau ntau yam hardware/software platforms. Nws kuj yuav tau ncua rau kev customization lossis ntxiv nta tshiab. Python no kuj scalable txhawb ntim ntawm lub tsheb khiav.
Yuav ua li cas, nruab thiab setup Python?
Nyob rau hauv tsab xov xwm no peb yuav muab siv Python 3 Version. Feem ntau ntawm cov Linux tis, leeg phooj ywg 2 thiab 3 los ua ib tus plahaum vim. Li ntawd, nyob rau tej qhov chaw ntawd koj yuav tsis tau mus nyias nruab. Hauv qab no yog cov ces txuas rau nruab nab hab sej.
Download tau txuas: https://www.python.org/downloads/
Thaum tus plahaum hauv cheeb tsam lub tsev, thov mus saib ' Ntxiv Python.exe kab’. Nws mam ntxiv rau (.exe) thov nyob rau hauv txoj kev yeej.
Nab hab sej teeb
Image1: Xaiv ' ntxiv Python.exe kom kab’ thaum ntawv
Thaum no tus plahaum tag, qhib qhov hais kom ua txhob thiab cia li ntaus ntawv ‘leeg phooj ywg’ raws li muaj nyob rau hauv cov duab hauv qab no. Nws yuav qhia tej lus txog lub version, plahaum thiab lwm yam. Tam sim no koj yuav xyuas kom meej tias cov plahaum tseem zoo thiab ua hauj lwm fine.
Nab hab sej hais kom ua txhob
Image2: Nab hab sej hais kom ua txhob
Tam sim no ib tug hauj lwm lawm ua ntej peb txav tom ntej mus saj tsis tau ib daim ntawv thov nab hab sej. Nruab ib yam ntawv zoo editor rau sau sej kev. Koj yuav nruab notepad los yog muaj lwm yam editor kawm.
Coj daim ntawv: Khiav ib nab hab sej kev, nram qab no yog ob txoj kev sib txawv
- Typing sej commands hauv lub plhaub lawm nab hab sej
- Cia kev sau yog ib cov ntaub ntawv nrog (.py) Extension
Peb yuav muab ua ib pab sau ua ntaub ntawv tus nab hab sej. Tab sis, peb yuav tsis sau ib kablus 'Nyob ntiaj teb zoo ' qhov kev pab cuam; theej peb yuav muab ua ib daim ntawv sib tham sib li nram qab no. Thawj zaug sau ib daim ntawv uas hu ua raws li covpyfirst.py'; nws yuav muaj txoj cai li nram qab no.
Qhia 1: Qhov kev pab cuam sej qauv (pyfirst.py)
[chaws]
luam(” Zoo siab Tostxais TechAlpine —- Cia saib nab hab sej thawj Pab”)
# Nab hab sej thov no yuav ntxiv leb nyob rau hauv ib txoj kev sib tham sib
# Nrhiav zauv input
number1 = tswv yim(' Thov sau koj tus number 1: ‘)
number2 = tswv yim(' Thov sau koj tus nawj npawb 2nd: ‘)
# Tam sim no muab ob tug zauv
tag nrho = ntab(number1) + ntab(number2)
# Sau cov zis
luam (' Li ntawd, tus lej {0} thiab {1} yog {2}'.format(number1, number2, tag nrho))
[/chaws]
Tam sim no, khiav tej ntaub ntawv hauv tsab ntawv los ntawm qhov hais kom ua txhob. Tom qab txhaj tshuaj ntsuam pom tau tias cov zis.
daim ntawv thov rau cov zis
Image3: Nab hab sej qauv ntawv tso zis
Yog vim li cas nab hab sej tseem ceeb nyob rau hauv cov ntaub ntawv loj loj thiab analytics?
Nab hab sej yog ib hom lus haib heev thiab nws twb tau muab siv rau yam puav tau ntev. Nws tau haib heev qiv rau cov ua paub tab tsom xam ntaub ntawv yooj yim. Nws tseem tsim kev siv scalable Web site dua. Li ntawd, nab hab sej yog xaiv dua kom loj thiab tej analytics daim ntaub ntawv uas mas tus kev nrog rau cov kev siv lub web no.
Xaus: Nyob rau cov tshooj no peb muaj sab laj txog nab hab sej, cov av sab nram qab thiab tseem ceeb nta. Peb muaj tseem them cov ces thiab cov plahaum koom txhawb lub developers yuav yooj yim ua raws li nws thiab pib lawv lub npe sej. Thaum kawg peb pom ib tug qauv ntawv rau kev nkag siab zoo. Li ntawd, peb yuav xaus tias sej yuav tuaj nyob rau hauv ib txoj kev loj kom deb li deb cov ntaub ntawv loj loj thiab kev siv analytics yog txhawj. Thiab nws yuav kuj evolve cuab yeej ntau dua thiab nta.
Sau cov neeg siv yuav sau tseg tso cai nyob hauv nab hab sej?
