实验8-2
将斐波那契数列的前10项写入文件Fb .dat，然后从该文件将数据读取出来并计算合计和平均数，最后送入列表框。
要求：文件数据格式如2.8.2所示，列表框中项目格式如图2.8.3所示。
解题，画2个按钮，1个列表框控件，代码如下：
Private Sub Command1_Click()
Dim fib%(0 To 9), i%
Open “c:\fb.dat” For Output As #1
For i = 0 To 9
If i = 0 Or i = 1 Then
fib(i) = i
Else
fib(i) = fib(i – 1) + fib(i – 2)
End If
Print #1, “””Fib(” & i & “)””,” & fib(i)
Next i
Close #1
i = Shell(“NOTEPAD.exe” + ” c:\fb.dat”, vbNormalNoFocus)
End Sub
Private Sub Command2_Click()
Dim st$, n%, sum%
Open “c:\fb.dat” For Input As #1
Do While Not EOF(1)
Input #1, st, n
sum = sum + n
List1.AddItem st & “=” & n
Loop
Close #1
List1.AddItem “合计：” & sum
List1.AddItem “平均：” & sum / 10
End Sub
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