WhichthreestatementsdescribethefunctionalityoftheDO_KEYbuilt－in?()
2021-05-06
A.Itacceptsbothabuilt-inandakeynameasargument.
B.Ifnokeytriggerisdefined,thespecifiedbuilt-inexecutes.
C.Itsparametermustbespecifiedinuppercase,enclosedinsinglequotationmarks.
D.Itperformsthesametaskasifyoupressedthefunctionkeyassociatedwiththespecifiedargument.
E.Itexecutesthekeytriggerthatcorrespondstothebuilt-inspecifiedasitsparameter.
正确答案：参考B, D, E
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