用VB.NET編寫(xiě)一個(gè)程序 ：編一求階乘的函數(shù)f(n),主調(diào)程序求組合數(shù)的程序，分別調(diào)用f(n),用來(lái)計(jì)算組合數(shù)的值

Private Sub Command1_Click()

創(chuàng)新互聯(lián)公司堅(jiān)持“要么做到，要么別承諾”的工作理念，服務(wù)領(lǐng)域包括：網(wǎng)站設(shè)計(jì)制作、網(wǎng)站設(shè)計(jì)、企業(yè)官網(wǎng)、英文網(wǎng)站、手機(jī)端網(wǎng)站、網(wǎng)站推廣等服務(wù)，滿足客戶(hù)于互聯(lián)網(wǎng)時(shí)代的勐臘網(wǎng)站設(shè)計(jì)、移動(dòng)媒體設(shè)計(jì)的需求，幫助企業(yè)找到有效的互聯(lián)網(wǎng)解決方案。努力成為您成熟可靠的網(wǎng)絡(luò)建設(shè)合作伙伴！

Dim A, B, C

A = 10

B = 3

C = f(A) / (f(B) * f(A - B))

Print C

End Sub

Private Function f(n)

Dim I As Integer

f = 1

For I = 1 To n

f = f * I

Next I

End Function

跪求:VB.net加減乘除 代碼

先在form上建立三個(gè)textbox，分別為textbox1,textbox2,textbox3，再建立四個(gè)按鈕，分別為cmdplus,cmdminus,cmdmultiple,cmddivide，代碼如下：

Private Sub cmdplus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdplus.Click

Dim a As Integer

Dim b As Integer

a = TextBox1.Text

b = TextBox2.Text

TextBox3.Text = a + b

End If

Private Sub cmdminus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdminus.Click

Dim a As Integer

Dim b As Integer

a = TextBox1.Text

b = TextBox2.Text

TextBox3.Text = a - b

End If

Private Sub cmdmultiple_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdmultiple.Click

Dim a As Integer

Dim b As Integer

a = TextBox1.Text

b = TextBox2.Text

TextBox3.Text = a * b

End If

Private Sub cmddivide_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmddivide.Click

Dim a As Integer

Dim b As Integer

a = TextBox1.Text

b = TextBox2.Text

TextBox3.Text = a / b

End If

vb.net中把兩個(gè)參數(shù)相乘用什么符號(hào)

vb.net中把兩個(gè)參數(shù)相乘用什么符號(hào)

vb.net中把兩個(gè)參數(shù)相乘用 * 符號(hào)來(lái)表示相乘，用 / 符號(hào)表示相除。

VB.NET 怎樣編寫(xiě)使用Do While 循環(huán)輸出1-10的階乘，我是新手請(qǐng)加上文字說(shuō)明，呵呵，謝謝各位了！

首先在窗體上畫(huà)兩個(gè)控件：TextBox1和Button1

TextBox1用來(lái)輸入需要計(jì)算那個(gè)數(shù)的階乘

雙擊Button1進(jìn)入輸入代碼，代碼如下

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Try

Dim Factorial As Integer = 1 '定義一個(gè)變量用來(lái)記錄階乘的結(jié)果

Dim count As Integer '定義一個(gè)變量用來(lái)記錄需要計(jì)算那個(gè)數(shù)的階乘

Dim i As Integer = 1 '定義一個(gè)數(shù)用來(lái)循環(huán)

count = Int(Val(Me.TextBox1.Text)) '把TextBox1的值賦值給count

Do While i = count '下面開(kāi)始計(jì)算階乘

Factorial = Factorial * i '計(jì)算階乘

i += 1 '自增1

Loop

MessageBox.Show(Int(Val(Me.TextBox1.Text)) "的階乘是：" Factorial, "完成", MessageBoxButtons.OK) '彈出計(jì)算結(jié)果

Catch ex As Exception '出錯(cuò)提示

MessageBox.Show(Err.Description, "出錯(cuò)了", MessageBoxButtons.OK, MessageBoxIcon.Error)

End Try

End Sub