![[单项选择题] 设有如下程序： Private Sub Form_Click() Dim s As Long, f As Long Dim n As Integer, i As Integer](http://www.mshxw.com/aiimages/31/248256.png "[单项选择题] 设有如下程序： Private Sub Form_Click() Dim s As Long, f As Long Dim n As Integer, i As Integer")
[单项选择题] 设有如下程序：
Private Sub Form_Click()
Dim s As Long, f As Long
Dim n As Integer, i As Integer
f=1
n=4
For i=1 To n
f=f*i
s=s+f
Next i
Print s
End Sub
程序运行后，单击窗体，输出结果是( )。
A．32
B．33
C．34
D．35
参考答案：
B问题解析:
本题是一个典型的For循环结构，f的值在每次循环中都会乘上当前的循环变量，然后累加到变量s中，循环共执行4次，即1+1*2+1*2*3+1*2*3*4=33。
