📄 递归调用.frm
字号:
VERSION 5.00
Begin VB.Form Form1
Caption = "Form1"
ClientHeight = 3075
ClientLeft = 60
ClientTop = 465
ClientWidth = 4680
LinkTopic = "Form1"
ScaleHeight = 3075
ScaleWidth = 4680
StartUpPosition = 3 '窗口缺省
Begin VB.CommandButton Command1
Caption = "计算"
Height = 375
Left = 3240
TabIndex = 0
Top = 2160
Width = 1215
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()
Dim n As Integer, f As Long
n = InputBox("输入一个正整数")
f = Fact(n)
Print n; "!="; f
End Sub
Private Function Fact(ByVal n As Integer) As Long
If n = 0 Or n = 1 Then
Fact = 1
Else
Fact = n * Fact(n - 1)
End If
End Function
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