wzkl.net
当前位置:首页 >> VB中的递归法是怎样的 >>

VB中的递归法是怎样的

Private Sub Form_load() Dim i As Long,n as integer n=int(val(inputbox("输入Fibonacci数列的项数"))) For i = 1 To n Print Fibonacci(i) Next End Sub Private Function Fibonacci(n As Long)As Long If n = 1 Then Fibonacci = 1 ElseIf n...

Private Sub Form_load() Dim i As Long,n as integer n=int(val(inputbox("输入Fibonacci数列的项数"))) For i = 1 To n Print Fibonacci(i) Next End Sub Private Function Fibonacci(n As Long)As Long If n = 1 Then Fibonacci = 1 ElseIf n...

Function Factorial(n As Integer) As DoubleIf Factorial = 0 Then Factorial = 1If n > 1 Then Factorial = n * Factorial(n - 1)End FunctionPrivate Sub Form_Click() '点击窗体运行MsgBox "阶乘计算结果为 " & Factorial(Val(InputBox("请...

Private Sub Form_Click() Print fact(4)End SubPublic Function fact(n As Integer) As Long If n = 1 Then fact = 1 Else fact = n * fact(n - 1) End If 'Print fact;End Function

第一个问题:为什么当X=2时函数等于0呢。因为在f(x)函数中你的t的类型为整形,它不能接收浮点数(即带小数点的数据),如果是浮点数,则它会将该数截尾取整,即舍去小数点后的数据。因此当X=2时,函数返回值为0. 第二个问题,当X=3时,调用f(x)...

Text1.Text = f(Val(Text1.Text)) 表示的意思是先把传入的文本字段Text1.Text 利用val 函数转化为int数值。然后调用自定义的递归函数 f (n as Integer) ,并把刚转化为int的数值作为参数传入其中,经过递归函数运算得到的结果作为返回值并赋值给...

Public Function s(n As Integer) As Long If n = 1 Then s = 1 Else s=n * s(n-1) End If End Function Private Sub Form_Click() Print “s(5)=”;s(5) End Sub

Private Sub Command1_Click() n = CInt(InputBox("请要求几的阶乘?")) MsgBox (n & "!=" & fact(n)) End Sub Function fact(n) s = 1 For i = 2 To n s = s * i Next i fact = s End Function

输入"abcdef"后,先递归6层,此时temp="",s2=""。之后从递归调用中返回一层,然后执行s2 = s2 & temp,现在s2为"f"。在后再返回一层,再执行,此时s2 = "fe"……最后,s2就变成了"fedcba"。其实这段程序还有个问题,就是再次调用subf时,由于i是...

Private Sub Command1_Click() Dim a As Integer, b As Integer a = Text1 b = Text2 Text3 = gcd(a, b) End Sub Function gcd(ByVal a As Integer, ByVal b As Integer) As Integer If a Mod b = 0 Then gcd = b Else gcd = gcd(b, a Mod b) En...

网站首页 | 网站地图
All rights reserved Powered by www.wzkl.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com