在窗体上画一个名称为Command1的命令按钮，然后编写如下事件过程：Private Sub Command1_Click（) D

在窗体上画一个名称为Command1的命令按钮，然后编写如下事件过程： Private Sub Command1_Click() Dim i As Integer Dim sum As Integer Dim sum1 As Integer Dim a(1 To 20)，x For i = 1 To 10 a(i)=i Next i For Each x In a If x Mod 2 = 0 Then sum1=sum1+x Else sum = sum+x End If Next x Print sum；sum1 End Sub 程序运行后，单击命令按钮，则窗体上显示的内容是

A．25 30

B．10 20

C．20 30

D．1 10