vb.net 中2、8、10、16進(jìn)制轉(zhuǎn)換代碼怎么寫

Option Explicit

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Dim Jz As Integer, K As Boolean

Private Sub Command1_Click()

Pic.Cls

If K Then Jz = Val(Qtjz.Text)

If Pd(Text1.Text, Jz) Then Pic.Print "選擇的進(jìn)制與數(shù)不符": Exit Sub

If Jz = 0 Then Pic.Print "請(qǐng)先輸入進(jìn)制" Else Pic.Print Zh(Text1.Text, Jz)

End Sub

Private Sub Command2_Click()

End

End Sub

Private Sub Frame1_DragDrop(Source As Control, X As Single, Y As Single)

End Sub

Private Sub Option1_Click(Index As Integer)

K = False

Select Case Index

Case 0

Jz = 2

Case 1

Jz = 8

Case 2

Jz = 10

Case 3

Jz = 16

Case 4

K = True

Qtjz.Text = ""

Qtjz.SetFocus

End Select

If Index 4 Then Command1.SetFocus

End Sub

Private Sub Qtjz_Click()

Qtjz.Text = ""

End Sub

Private Sub Text1_Click()

Text1.Text = ""

End Sub

Private Function Zh(a As String, b As Integer) As Integer

Dim c As String, i, d As Integer

a = LCase(a)

For i = 1 To Len(a)

c = Mid(a, Len(a) + 1 - i, 1)

If Asc(c) 96 Then d = Asc(c) - 87 Else d = Val(c)

Zh = Zh + d * b ^ (i - 1)

Next i

End Function

Private Function Pd(a As String, b As Integer) As Boolean

Dim c As String, i, d As Integer

Pd = False

For i = 1 To Len(a)

c = Mid(a, Len(a) + 1 - i, 1)

If Asc(c) 96 Then d = Asc(c) - 87 Else d = Val(c)

If d b - 1 Then Pd = True: Exit Function

Next i

End Function

vb.net數(shù)組型轉(zhuǎn)換為數(shù)字型

Dim byts1() As Byte = {255, 255, 0, 0}

'4位16進(jìn)制數(shù)組轉(zhuǎn)Integer

Dim value As Integer = BitConverter.ToInt32(byts1, 0)

'Integer轉(zhuǎn)4位16進(jìn)制數(shù)組()

Dim byts2() As Byte = BitConverter.GetBytes(value)

VB.net 類型轉(zhuǎn)換

Cint(TextBox1.Text) '轉(zhuǎn)換為Integer

Cdbl(TextBox1.Text) '轉(zhuǎn)換為Double

VB.NET如何把字符串（不全是數(shù)字或?yàn)榭眨┺D(zhuǎn)換成數(shù)字？

明白你的意思了,只要是字母都會(huì)轉(zhuǎn)換成數(shù)字,幫你寫好了("usernane"和 "pasward" 我這里寫成 "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

vb.net 16進(jìn)制數(shù)字轉(zhuǎn)換為字符串

把字符串“12341168C5B7”轉(zhuǎn)換為16進(jìn)制數(shù)存為string型

用shuzi=Convert.ToInt32("12341168C5B7",16)

就ok了。

反之用 shuzi.ToString("X")就行了。

給分！！！

12341168C5B7轉(zhuǎn)換成10進(jìn)制數(shù)就是20014839678391。。

而int32的最大值為2,147,483,647。。所以產(chǎn)生錯(cuò)誤。

所以要用int64，它的最大值為9,223,372,036,854,775,807。也就是16位十六進(jìn)制數(shù)0X7FFFFFFFFFFFFFFF。

難道還有比F靠后的數(shù)？？？？？？

名稱欄目：vb.net整數(shù)轉(zhuǎn)換 vb整數(shù)轉(zhuǎn)換成字符串
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