Vim lawv yog cov tsis tu ncua, cov npe ntawm hom enum cov teb yog nyob rau hauv cov tsiaj ntawv loj. Koj yuav tsum siv hom enum txhua lub sijhawm koj xav tau los sawv cev rau cov txheej txheem ruaj khov.
Puas yuav tsum yog txhua lub kaus mom?
Enums yog hom thiab lub npe enum yuav tsum pib nrog lub peev. Enum cov tswv cuab yog qhov tsis tu ncua thiab lawv cov ntawv yuav tsum yog tag nrho-uppercase.
Yuav tsum enum yog tus lej C++?
Cov lus qhia rau C thiab C ++ code
Preprocessor macro yuav tsum yog tag nrho cov ntaub ntawv loj. … Hauv C code, qhov no feem ntau yog tag nrho cov ntawv sau qis (piv txwv li, epbcNONE); hauv C ++, tib txoj hauv kev yuav raug siv, lossis siv lub npe ntawm hom enum (piv txwv li, eHelpOutputFormat_Console).
Yuav ua li cas sau tus lej qis?
Java cov lus pom zoo yog cov npe enum yog tag nrho cov ntawv loj, uas tam sim ntawd ua rau muaj teeb meem yog tias koj xav serialize enum hauv lwm daim ntawv. Tab sis thaum koj serialize cov enum qhov tseem ceeb, koj xav siv tus lej qis ntawm "sab laug", "sab saum toj", "txoj cai", thiab "hauv qab". Tsis muaj teeb meem-koj tuaj yeem hla sab.
Puas yog enum case sensitive?
Enum constants yog case sensitive.
