使用vb.net編寫一個(gè)函數(shù)，函數(shù)只有一個(gè)參數(shù)

首先在窗體上添加Button1，ListBox1，下面是完整代碼

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Public?Class?Form1

Public?Sub?BubbleSort(ByVal?arr()?As?Integer)?'冒泡法排序

Dim?temp?As?Double

Dim?i,?j?As?Integer

For?i?=?0?To?arr.GetUpperBound(0)?-?1

For?j?=?i?+?1?To?arr.GetUpperBound(0)?-?1

If?arr(i)??arr(j)?Then

temp?=?arr(j)

arr(j)?=?arr(i)

arr(i)?=?temp

End?If

Next

Next

End?Sub

Private?Sub?Button1_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button1.Click?'調(diào)用

Dim?arr()?As?Integer?=?{55,?22,?33,?11,?77,?88}

BubbleSort(arr)?'調(diào)用排序過程

Me.ListBox1.Items.Clear()

For?i?=?0?To?arr.GetUpperBound(0)?-?1?'顯示排序后結(jié)果

Me.ListBox1.Items.Add(arr(i).ToString)

Next

End?Sub

End?Class

VB.net 如何編寫一個(gè)可以返回?cái)?shù)組的函數(shù)（過程）？

public function createstringarr() as string()

return new string(){"d1","d2","d3","d4"}

end function

VB.NET自定義函數(shù)

很簡單，在end select前再多加一種情況case else return "XXXx",因?yàn)槟阒惶峁┝?-9這10種情況

Public Function Zuhe(ByVal qa As String) As String

Select Case qa

Case "0"

Return "1"

Case "1"

Return "3"

Case "2"

Return "4"

Case "3"

Return "6"

Case "4"

Return "2"

Case "5"

Return "8"

Case "6"

Return "9"

Case "7"

Return "7"

Case "8"

Return "5"

Case "9"

Return "0"

Case else

Return "XXXX"

End Select

End Function

vb.net 編寫一個(gè)函數(shù)

注意：參數(shù)為動(dòng)態(tài)數(shù)組；

Private Function MyF(ByRef d() As Integer)

ReDim d(4, 13) As Integer

Dim i As Integer

Dim j As Integer

Dim n As Integer

Dim MyNum(4) As Integer

For i = 1 To 4

MyNum(i) = 0

Next i

Randomize

For i = 1 To 4

For j = 1 To 13

n = Int(Rnd * 4 + 1)

Do While MyNum(n) = 13

n = Int(Rnd * 4 + 1)

Loop

d(i, j) = n

MyNum(n) = MyNum(n) + 1

Next j

Next i

End Function

當(dāng)前標(biāo)題：vb.net編函數(shù),編程語言 vb
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