📄 猴子吃桃子.frm
字号:
VERSION 5.00
Begin VB.Form Form1
Caption = "Form1"
ClientHeight = 3195
ClientLeft = 60
ClientTop = 345
ClientWidth = 4680
LinkTopic = "Form1"
ScaleHeight = 3195
ScaleWidth = 4680
StartUpPosition = 3 '窗口缺省
Begin VB.CommandButton Command1
Caption = "计算"
Height = 495
Left = 3240
TabIndex = 0
Top = 840
Width = 1335
End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
'这是一个“递推”问题,先从最后一天推出倒数第二天的桃子,再从倒数第二天的桃子推出倒数第三天的桃子……。
'设第n天的桃子为x(n),那么前一天的桃子数x(n-1)为x(n)=(1/2)*x(n-1)-1即x(n-1)=(x(n)+1)*2
Dim x, i As Integer
x = 1
Print "第10天的桃子数为:1个"
For i = 9 To 1 Step -1
Print "第"; i; "天的桃子数为:";
x = 2 * (x + 1)
Print x; "个"
Next i
End Sub
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