Video: Koj ua li cas nrog binary overflow?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Tshaj dhau Txoj cai rau ntxiv
Yog tias 2 Ob tus lej ntxiv ntxiv, thiab lawv ob leeg muaj tib lub cim (ob qho tib si zoo lossis ob qho tsis zoo), ces dej ntws tshwm sim yog thiab tsuas yog hais tias qhov tshwm sim muaj qhov opposite kos npe. Tshaj dhau yeej tsis tshwm sim thaum ntxiv operands nrog cov cim txawv.
Tsuas yog li ntawd, dab tsi yog overflow txhais tau tias hauv binary?
Tshaj dhau tshwm sim thaum qhov loj ntawm ib tug xov tooj tshaj qhov ntau tau tso cai los ntawm qhov loj me me teb. Cov txiaj ntsig ntawm ob tus lej kos npe zoo ib yam tuaj yeem dhau qhov ntau ntawm qhov me me ntawm ob tus lej, thiab yog li qhov no overflow yog muaj peev xwm.
Ib yam li ntawd, dab tsi yog overflow thiab underflow hauv binary? Tshaj dhau yog thaum tus nqi tseeb ntawm tus lej siab dhau rau lub computer los sawv cev rau nws. Underflow yog thaum tus nqi tseeb ntawm tus lej ze ze rau xoom rau lub computer los sawv cev rau nws. Koj tuaj yeem tau txais dej ntws nrog ob tus lej thiab cov lej ntab ntab.
Ib yam li ntawd, koj tuaj yeem nug, ua li cas lub khoos phis tawj cuam tshuam nrog dej ntws?
Hauv kev suav, ib dej ntws yuam kev tuaj yeem tshwm sim thaum suav suav tab sis lub computer tsis tuaj yeem khaws cov lus teb kom raug. Tag nrho khoos phis tawj muaj ib tug predefined ntau yam ntawm qhov tseem ceeb lawv tuaj yeem sawv cev lossis khaws cia. Tshaj dhau Qhov yuam kev tshwm sim thaum qhov kev ua tiav ntawm cov txheej txheem cov lus qhia rov qab tus nqi sab nraud ntawm qhov no.
Peb yuav kuaj xyuas li cas thaum muaj dej ntws tawm?
Yog li, overflow tau nkaus xwb tshwm sim thaum x thiab y muaj tib lub cim. Ib txoj kev mus ntes overflow yog los xyuas qhov kos npe me ntsis ntawm cov lej. Yog lub kos npe me ntsis ntawm cov sum ua tsis phim tus kos npe me ntsis ntawm x thiab y, ces muaj dej ntws.
Pom zoo:
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