Video: Dab tsi yog qhov sib txawv ntawm cov neeg ua haujlwm logical?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Muaj peb logical operators hauv JavaScript: || (OR), && (AND), ! (TSIS YOG). Txawm hais tias lawv hu ua " logical ”, lawv tuaj yeem siv rau qhov tseem ceeb ntawm ib qho twg hom , tsis yog xwb boolean . Lawv qhov tshwm sim kuj tuaj yeem yog ib qho hom.
Ib yam li ntawd, koj tuaj yeem nug, qhov piv txwv ntawm tus neeg teb xov tooj logical yog dab tsi?
Logical Operators hauv C
| Tus neeg ua haujlwm | Kev piav qhia | Piv txwv |
|---|---|---|
| && | Hu ua Logical THIAB tus neeg teb xov tooj. Yog tias ob qho tib si operands tsis yog xoom, ces qhov xwm txheej yuav muaj tseeb. | (A & B) yog cuav. |
| || | Hu ua Logical OR Operator. Yog tias ib qho ntawm ob qhov kev ua haujlwm tsis yog xoom, ces qhov xwm txheej yuav tshwm sim. | (A || B) muaj tseeb. |
Tsis tas li ntawd, kev ua haujlwm logic yog dab tsi? A kev ua haujlwm zoo yog ib lub cim tshwj xeeb lossis lo lus uas txuas ob lossis ntau kab lus ntawm cov ntaub ntawv. Nws yog feem ntau siv los ntsuas seb qhov kev sib raug zoo ntawm cov kab lus yog qhov tseeb lossis cuav.
Yog li ntawd, cov tswv yim sib txawv hauv C yog dab tsi?
Cov no cov neeg ua haujlwm yog siv los ua logicaloperations ntawm cov lus qhia. Muaj 3 logicaloperators hauv C lus. Lawv yog, logical THIAB (&&), logical LOS YOG (||) thiab logical TSIS (!).
Cov lus sib txawv yog dab tsi?
Cov lus qhia , Operators, thiab Operands Muaj peb hom lus : Anarithmetic kev qhia ntsuas rau ib tug lej lej. Ib tus cwj pwm kev qhia ntsuas rau ib tus nqi ntawm hom tus cwj pwm. Ib qho laj thawj lossis kev sib raug zoo kev qhia ntsuam xyuas rau ib qho txiaj ntsig zoo.
Pom zoo:
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