vb.net转换数字 vb数值转换

刚入手VB.NET不知道怎么将数字转换成字节数组Private Function Conver_Hex(ByVal L As Long) As Array
Dim str_L As String = Hex(L)
If str_L.Length \ 20 Then
str_L = "0"str_L
End If
Dim byt(str_L.Length / 2 - 1) As Byte
For i = 0 To str_L.Length / 2 - 1
byt(i) = Convert.ToByte(str_L.Substring(2 * i, 2), 16)
Next
Return byt
End Function
'下面是调用代码
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim L As Double = 123456
Dim byt() As Byte = Conver_Hex(L)
End Sub
vb.net数组型转换为数字型Dim byts1() As Byte = {255, 255, 0, 0}
'4位16进制数组转Integer
Dim value As Integer = BitConverter.ToInt32(byts1, 0)
'Integer转4位16进制数组()
Dim byts2() As Byte = BitConverter.GetBytes(value)
VB.NET如何把字符串(不全是数字或为空)转换成数字?明白你的意思了,只要是字母都会转换成数字,帮你写好了("usernane"和 "pasward" 我这里写成"username" 和" password")
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim username, password As String
Dim temp As Long
Dim r As String = ""
Dim v As String = TextBox1.Text
For Each c In v.ToString
If IsNumeric(c) Then
r = c
Else
r = ((Asc(c) - 65).ToString("00"))
End If
Next
username = r
temp = username * 3 - 500
password = CStr(temp)
TextBox2.Text = password
End Sub
怎样在VB中将文本转换成数值【vb.net转换数字 vb数值转换】1、首先在电脑中找到并打开VB软件,找到一句输出的函数 。
2、然后在其数组变量中,套上一个Str函数 。
3、这里注意函数的关键字,是没有区分大小写的 。
4、然后函数是可以多个嵌套使用 。
5、最后点击运行按钮,这样就可以成功运行测试,如下图所示,转换就完成了 。
vb.net 如何把大写金额转换成阿拉伯数字金额?Private Sub Text2_Change()'大写金额转换成阿拉伯数字金额
Dim i As Integer
Dim j As Integer
Dim myint As Integer
Dim myint1 As Integer
Dim mydoub As Double
Dim mystr As String
Dim mystr1 As String
Dim mystr2 As String
Dim mystr3 As String
Dim mystr4 As String
Dim money As Long
Dim money1 As Integer
Dim money2 As Long
mystr = Text2.Text
myint = InStr(mystr, ".")
If myint = 0 Then
mystr = Text2.Text
Else
mystr3 = Right(Text2.Text, Len(Text2.Text) - myint)
If mystr3"" Then'转换小数位
mystr4 = Left(mystr3, 1)
mystr3 = Right(mystr3, Len(mystr3) - 1)
If mystr4"0" Then
mystr2 = mystr2setdata(Val(mystr4))"角"
End If
If mystr3"" Then
mystr4 = Left(mystr3, 1)
mystr2 = mystr2setdata(Val(mystr4))"分"
End If
End If
mystr = Left(Text2.Text, myint - 1)
End If
j = Len(mystr)
For i = 1 To Len(mystr)'转换整数位
money2 = Left(mystr, i)
money1 = Right(money2, 1)
If money1 = 0 Then
If j = 5 Then
If Right(mystr1, 1)"万" Then mystr1 = mystr1"万"
Else
If Right(mystr1, 1)"零" And Right(money, j)0 Then mystr1 = mystr1"零"
End If
Else
mystr1 = mystr1setdata(money1)chang(j)
End If
j = j - 1
Next i
Text1.Text = mystr1"元"mystr2'显示大写
End Sub
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