Video: Pov ib qho yuam kev ua dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Pov ib qho yuam kev cia koj qhia tias ib yam dab tsi tshwm sim tsis tau tshwm sim thiab qhov kev ua haujlwm zoo li qub tsis tuaj yeem txuas ntxiv mus. Koj siv a pov nqe lus rau pov ib qho yuam kev.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi cuam tshuam tshiab yuam kev?
pov tshiab yuam kev ("lus"); Qhov no ua haujlwm nyob rau hauv tag nrho cov browsers thiab yuav tso saib cov yuam kev cov ntaub ntawv nyob rau hauv tib txoj kev nws yuav txhua yam tsis txhob txwm ua JavaScript yuam kev . Txoj hlua "message" khaws cia rau hauv cov khoom ntawm cov khoom (uas yog qhov browser siv los tso saib cov lus).
Ib yam li ntawd, thaum twg koj yuav tsum pov qhov yuam kev? Txhua txoj haujlwm nug ib lo lus nug. Yog hais tias cov tswv yim nws muab ua rau lo lus nug no fallacy, ces pov ib kev zam . Cov kab no nyuaj dua los kos nrog cov dej num uas rov qab los tsis muaj dab tsi, tab sis cov kab hauv qab yog: yog tias txoj haujlwm kev xav txog nws cov khoom siv tau raug ua txhaum, nws yuav tsum pov ib kev zam es tsis txhob rov qab los li qub.
Tsis tas li ntawd, pov ib qho yuam kev txhais li cas?
Cov pov nqe lus pov (generates) ib yuam kev . Thaum ib yuam kev tshwm sim, JavaScript yuav nquag nres, thiab tsim ib qho yuam kev lus. Lub sij hawm technical rau qhov no yog: JavaScript yuav pov ib qho yuam kev . Cov pov nqe lus tso cai rau koj los tsim kev cai yuam kev . Lub sij hawm technical rau qhov no yog: pov ib kev zam.
Koj pov qhov yuam kev hauv C++ li cas?
pov - Ib program pov ib qho kev zam thaum muaj teeb meem tshwm sim. Qhov no yog ua tiav siv a pov lo lus tseem ceeb. catch - Ib qhov kev pab cuam catches ib kev zam nrog ib kev zam handler ntawm qhov chaw hauv qhov program uas koj xav daws qhov teeb meem. Lub catch lo lus tseem ceeb qhia txog kev ntes ntawm ib qho kev zam.
Pom zoo:
Dab tsi yog qhov sib txawv loj ntawm kev txheeb xyuas qhov yuam kev thiab kev kho cov lej yuam kev?
Ob qhov kev tshawb nrhiav qhov yuam kev thiab kev kho qhov yuam kev yuav tsum muaj qee qhov ntawm cov ntaub ntawv rov qab xa mus nrog cov ntaub ntawv tiag tiag; kev kho yuav tsum muaj ntau tshaj li kev tshawb nrhiav. Parity bits yog ib txoj hauv kev yooj yim rau kev tshawb nrhiav qhov yuam kev. Ib qho parity me ntsis yog ib qho ntxiv me ntsis xa nrog cov ntaub ntawv uas tsuas yog 1-ntsis suav ntawm cov ntaub ntawv
Dab tsi yog tus yuam sij ntiag tug thiab pej xeem tus yuam sij hauv Blockchain?
Thaum ib tug neeg xa koj cryptocoins hla Blockchain, lawv tau xa lawv mus rau qhov hashed version ntawm qhov hu ua "Public Key". Muaj lwm tus yuam sij uas zais ntawm lawv, uas yog hu ua "Private Key." Qhov Private Key no yog siv los muab Public Key
Puas muaj ib txoj hauv kev pov tseg qhov kev kuaj xyuas los ntawm txoj kev uas tsis muaj cov lus pov tseg?
9 Teb. Koj tuaj yeem pov cov kev txwv tsis raug txheeb xyuas yam tsis tas yuav tshaj tawm lawv yog tias koj xav tau tiag tiag. Unchecked kev zam txuas ntxiv RuntimeException. Throwables uas txuas ntxiv yuam kev tseem tsis tau txheeb xyuas, tab sis tsuas yog yuav tsum tau siv rau cov teeb meem loj tiag tiag (xws li invalid bytecode)
Vim li cas kev cob qhia yuam kev tsawg dua qhov kev xeem yuam kev?
Kev cob qhia yuam kev feem ntau yuav tsawg dua qhov kev xeem yuam kev vim tias tib cov ntaub ntawv siv los ua kom haum tus qauv yog ua haujlwm los ntsuas nws qhov kev kawm yuam kev. Ib feem ntawm qhov tsis sib xws ntawm qhov kev cob qhia yuam kev thiab qhov kev xeem yuam kev yog vim tias cov txheej txheem kev cob qhia thiab cov ntawv xeem muaj qhov sib txawv ntawm cov khoom siv
Leej twg tsim qhov yuam kev ntawm qhov yuam kev?
Lub sij hawm tseem ceeb ntawm qhov yuam kev raug tsim nyob rau xyoo 1977 los ntawm tus kws kho mob hlwb Lee Ross. Txawm li cas los xij, kev tshawb fawb txog qhov yuam kev tseem ceeb rov qab mus rau xyoo 1950 thaum cov kws paub txog kev puas siab puas ntsws Fritz Heider thiab Gustav Ichheiser pib tshawb xyuas cov neeg nkag siab txog qhov ua rau tib neeg tus cwj pwm