程序段如下:Dim i As Integer s As IntegerFor i=4 To 1 Step-1 s=s+iNext iPrint s i执行的结果

程序段如下： Dim i As Integer，s As Integer For i=4 To 1 Step-1 s=s+i Next i Print s，i执行的结果是()。

A．10 0

B．9 1

C．10 1

D．9 0

请帮忙给出正确答案和分析，谢谢！

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