Ib tus cim cim thoob ntiaj teb (UUID) yog 128-ntsis daim ntawv lo siv rau cov ntaub ntawv hauv computer systems. Lub sij hawm thoob ntiaj teb tus cim cim (GUID) kuj tseem siv, feem ntau hauv software tsim los ntawm Microsoft.
Tus lej GUID yog dab tsi?
( Ntiaj teb Cim Cim Cim Cim) Kev siv ntawm universally unique ID (saib UUID) uas yog xam los ntawm Windows thiab Windows applications. Siv tus lej pseudo-random 128-ntsis tus lej, GUIDs yog siv los txheeb xyuas cov neeg siv nyiaj, cov ntaub ntawv, software, kho vajtse, software interfaces, ntu, cov yuam sij database thiab lwm yam khoom.
Kuv yuav tsim ib daim ntawv qhia li cas?
Mapping lub Cheebtsam rau GUID
- Hloov lub npe rau hauv bytes. …
- Hloov lub namespace rau hauv bytes. …
- Cuam lawv thiab hash siv txoj kev hashing kom raug. …
- Tshuaj cov hash rau hauv cov khoom tseem ceeb ntawm GUID, teev sijhawm, moos ua ntu zus, thiab tus lej ID. …
- Insert the timestamp component to the GUID: 2ed6657de927468b.
GUID piv txwv yog dab tsi?
Types of GUIDs
txhawm rau txheeb xyuas qhov version ntawm GUID, tsuas yog saib tus lej version piv txwv li version 4 GUIDs muaj format xxxxxxxx-xxxx-4xxx-Nxxx-xxxxxxxxxxxxqhov twg N yog ib qho ntawm 8, 9, A, lossis B. Cov qauv no yog tsim los siv ob lub sijhawm tam sim no thiab tus neeg siv khoom MAC chaw nyob.
GUID puas yog tib yam?
Txoj kev xav, tsis yog, lawv tsis txawv. Nws muaj peev xwm tsim tau ib qho kev taw qhia zoo ib yam thiab dhau. … Los ntawm qhov ntawd (ntawm Wikipedia), qhov txawv ntawm kev tsim cov GUID sib npaug: 1 hauv 2^128.
