下列程序的执行结果为( )。
Ptivate Sub Command_Click()
DimFirStr As String
FirStr="abcdef"
PrintPat(FirSb)
End Sub
PrivateFunctionPat(xStr As String)As String
DimtempStr As String,strLen As Integer
tempStr=""
strLen=Len(xStr)
i=1
DoWhile i<=Len(xStr)-3
tempStr=tempSlx+Mid(xStr,i,1)+Mid(xStr,strLen-i+1,1)
i=i+1
Loop
Pat=tempStr
End Function
A.abcdef
B.afbecd
C.fedcba
D.defabc
参考答案:B