Dab tsi yog qhov piv txwv hauv UML?
Dab tsi yog qhov piv txwv hauv UML?

Video: Dab tsi yog qhov piv txwv hauv UML?

Video: Dab tsi yog qhov piv txwv hauv UML?
Video: Dab ntxwg nyoos yog leej twg ...zaj no zoo heev. 2024, Tej zaum
Anonim

Piv txwv yog ib qho kev tshwm sim ntawm ib qho kev paub daws teeb meem uas cov txheej txheem ua haujlwm tuaj yeem siv tau thiab uas muaj lub xeev uas khaws cov txiaj ntsig ntawm kev ua haujlwm. piv txwv thiab cov khoom yuav luag tib yam (peb tsis tuaj yeem hais ib yam khoom ntawm kev koom tes, nws yog ib qho piv txwv ntawm lub koom haum hu ua link)

Yog li ntawd, Ooad piv txwv yog dab tsi?

Hauv object-oriented programming (OOP), ib piv txwv yog ib qho tshwm sim ntawm ib yam khoom, uas muaj feem ntau thaum lub sij hawm khiav ntawm lub computer program. Qhov khoom yog ib qho piv txwv ntawm chav kawm, thiab tej zaum yuav hu ua chav kawm piv txwv los yog chav kawm khoom; instantiation yog ces hu ua kev tsim kho.

Ib yam li ntawd, cov duab kos duab sib cuam tshuam yog dab tsi? Peb muaj ob hom kev sib cuam tshuam daim duab hauv UML. Cov kab kos duab ntes lub sijhawm ib ntus ntawm cov lus ntws los ntawm ib yam khoom mus rau lwm tus thiab kev sib koom tes daim duab piav qhia txog lub koom haum ntawm cov khoom hauv ib qho kev koom nrog hauv cov lus ntws.

Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qhov khoom hauv UML?

Yam khoom . Hauv UML qauv, khoom yog cov qauv qauv uas sawv cev piv txwv ntawm cov chav kawm lossis cov chav kawm. Tus kheej ntawm ib khoom ua rau nws tshwj xeeb. Koj tuaj yeem siv tus cim tshwj xeeb ntawm ib qho khoom kom sib txawv ntawm ntau qhov piv txwv ntawm ib chav kawm yog tias txhua qhov piv txwv muaj tib lub xeev. Txhua khoom yuav tsum muaj lub npe tshwj xeeb.

Dab tsi yog chav kawm thiab khoom hauv UML?

Cov chav kawm : Ib tug qauv tsim khoom thiab siv tus cwj pwm hauv ib qho system. Hauv UML , a chav kawm sawv cev ib khoom los yog ib txheej ntawm khoom uas qhia ib qho qauv thiab tus cwj pwm. Lawv sawv cev los ntawm ib daim duab plaub uas suav nrog cov kab ntawm cov chav kawm lub npe, nws cov cwj pwm, thiab nws cov haujlwm.

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