下列程序的执行结果为
PrivateSubCommand1_Click()
DimFirStrAsString
FirSt="abcdef"
PrintPat(FirStr)
EndSub
PrivateFunctionPat(xStrAsString)AsString
DimtempStrAsString,strLenAsInteger
tempStr=""
strLen=Len(xStr)
i=1
DoWhilei<=Len(xStr)-3
tempStr=tempStr+Mid(xStr,i,1)+Mid(xStr,strLen-i+1,1)
i=i+1
Loop
Pat=tempStr
EndFunction
A.abcdef
B.afbecd
C.fedcba
D.defabc