Ngaue Seini 'i he Python Bytecode
Ngaue Fakaseini 'i he Python Bytecode \u003cp\u003eKo e fakamatala ko eni oku ne omai a e ngaahi fakakaukau mo e ngaahi fakamatala mahu inga ki hono kaveinga, o tokoni ki he vahevahe o e ilo mo e mahino.\u003c/p\u003e \u003ch3\u003e Ngaahi Me'a Tefito 'oku 'Ave \u003cp\u003eR...
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Ngaahi Fehuʻi ʻoku Faʻa ʻEke
Ko e hā ʻa e ngāue seini ʻi he Python?
Ko e vahevahe seini 'oku ne faka'ata koe ke ke vahevahe 'a e mahu'inga tatau ki he ngaahi kehekehe lahi 'i ha fakamatala 'e taha, hange ko e a = b = c = 10. 'I he tu'unga 'o e bytecode, 'Oku sivi'i 'e he Python 'a e fakahaa'i 'o e nima to'omata'u tu'o taha, pea 'oku ne toe fakafoki 'a e ola 'i he stack 'o faka'aonga'i 'a e DUP_TOP pea tanaki ia ki he taumu'a takitaha mei he to'ohema ki he to'omata'u. 'Oku hanga 'e he me'a ni 'o 'ai 'a e chained assignment ke fakatou nounou mo lelei 'i hono fakafehoanaki ki hono tohi 'o e ngaahi fakamatala 'o e ngaue kehekehe.
'Oku anga fefe hono tokanga'i 'e he Python bytecode 'a e ngaahi ngaue 'oku seini'i 'o kehe mei he ngaahi ngaue lahi?
'I he vahenga seini, 'oku sivi'i 'a e fakahaa'i 'o tu'o taha pe pea 'oku toe fakafoki 'a e mahu'inga 'oku ma'u 'i he stack ki he ngaahi kehekehe takitaha 'o e taumu'a. Ko hono fakafehoanaki, ko hono tohi 'o e ngaahi ngaue kehekehe hange ko e a = 10; b = 10 'oku ne sivi'i tau'ataina 'a e literal ki he laine takitaha. Te ke lava ʻo siviʻi ʻa e ʻulungaanga ko ʻení ʻo fakaʻaongaʻi ʻa e module ʻo e Python, ʻa ia ʻokú ne veteki ʻa e ngaahi ngāué ki heʻenau ngaahi fakahinohino ʻo e bytecode, ʻo fakahaaʻi ʻa e ngaahi ngāue ʻoku kau ki aí.
'Oku 'i ai ha ngaahi tauhele mo e vahevahe seini ki he ngaahi me'a 'oku lava ke liliu?
'Io — ko ha fehalaaki angamaheni ko hono tohi 'o e a = b = [], 'a ia 'oku ne ha'i 'a e ongo kehekehe ki he me'a lisi tatau kae 'ikai ko hono fa'u ha ongo lisi tau'ataina. Ko hono liliu ‘o e taha ‘e uesia ai ‘a e taha. 'Oku hoko 'eni koe'uhi ko e bytecode 'oku ne toe fakafoki 'a e lave, 'ikai ko e me'a 'iate ia pe. Ko e mahino 'o e 'ulungaanga ko 'eni 'o e bytecode-levolo 'oku tokoni ia ki he kau developers ke faka'ehi'ehi mei he ngaahi bugs fakapulipuli. 'Oku 'ufi'ufi 'e he Mewayz 'a e ngaahi 'uhinga 'o e liliu vs 'ikai liliu 'i he kotoa 'o 'ene ngaahi modules Python 'e 207, 'oku ma'u 'i he $19/mo.
Ko fe 'e lava ke u ako lahi ange ai fekau'aki mo e Python bytecode mo e ngaahi me'angaue 'i loto?
Ko e ngaahi fakamatala faka'ofisiale 'o e module dis ko ha kamata'anga lelei ia ki hono fakatotolo'i 'o e ngaahi fakahinohino 'o e bytecode. Ki ha fokotu'utu'u, nima-'i he hala ako 'oku ne 'ufi'ufi 'a e Python internals 'i he tafa'aki 'o e ngaahi taukei fakapolokalama 'aonga, 'Oku 'omi 'e he Mewayz 'a e 207 modules 'oku ngaohi fakapotopoto 'i he $19/mo. 'Oku fakalakalaka 'a e ngaahi module ko 'eni mei he ngaahi fakakaukau fakava'e hange ko e ngaue kehekehe 'o a'u ki he ngaahi kaveinga fakalakalaka hange ko e 'analaiso 'o e bytecode, pule'i 'o e manatu, mo e 'ulungaanga 'o e faka'uhinga lea.
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