有如下程序:Option base 1Private Sub Command1_ClickDim arr(10)Arr=Array(10,35,28,90,54,68,72,90)For Each a In arrIf a50 thenSum=sum+aEnd IfNext aEnd Sub运行上述程序时出现错误,错误之处是A)数组定义语句不对,应改为Dim arrB)没有指明For 循环的终值C)应在For语句之前增加sum=0D)Next a 应改为next

有如下程序:

Option base 1

Private Sub Command1_Click

Dim arr(10)

Arr=Array(10,35,28,90,54,68,72,90)

For Each a In arr

If a>50 then

Sum=sum+a

End If

Next a

End Sub

运行上述程序时出现错误,错误之处是

A)数组定义语句不对,应改为Dim arr

B)没有指明For 循环的终值

C)应在For语句之前增加sum=0

D)Next a 应改为next


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