public function createstringarr() as string()

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return new string(){"d1","d2","d3","d4"}
end function
其實(shí)用Environment.TickCount就可以了,函數(shù)獲取系統(tǒng)啟動(dòng)后經(jīng)過的毫秒數(shù)
因?yàn)闀r(shí)間不重復(fù),所以如果間隔1秒永不重復(fù)且隨機(jī)
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
首先在窗體上添加Button1,ListBox1,下面是完整代碼
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
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
refresh是vb的關(guān)鍵詞,你最好不要用這個(gè)名字作為你自定義函數(shù)的名字,當(dāng)然,VB也允許你用Overrides關(guān)鍵詞重載這個(gè)方法。
本文名稱:vb.net的自編函數(shù),vb編程函數(shù)
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