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