包含vb.net字典的使用的词条

VB.NET 中的Of是什么意思

泛型参数，表示一种特定类型，通常用于集合List, Dictionary之类的。

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原型：Dictionary(Of TKey, TValue)

原型不能直接使用，必须给TKey, TValue指定一个类型(Type)

强类型字典：Dictionary(Of String, String)

表示键和值都为String类型的字典。

用VB语言制作英汉小辞典

Public Class Form1

Inherits System.Windows.Forms.Form

Public filename As String = "英汉词典.txt"

Public myword(6500, 1) As String

Public words As Integer = 0

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim a As String

Dim b As Integer

Dim i As Integer = 0

Dim n As String

Dim m As String

Dim stringb As Integer

TextBox1.Text = ""

TextBox2.Text = ""

FileOpen(1, "英汉词典.txt", OpenMode.Input)

Do While Not EOF(1)

a = LineInput(1)

b = InStr(a, " ")

n = Microsoft.VisualBasic.Left(a, b - 1)

myword(i, 0) = n

ListBox1.Items.Add(n)

stringb = Len(a) - b

m = Trim(Microsoft.VisualBasic.Right(a, stringb))

myword(i, 1) = m

i += 1

Loop

words = i

FileClose(1)

End Sub

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

Dim i As Integer = -1

If TextBox1.Text = "" Then

MessageBox.Show("不能输入空格，请重新输入")

TextBox2.Text = ""

TextBox1.Focus()

Exit Sub

Else

For i = i + 1 To words

If LCase(TextBox1.Text) = LCase(myword(i, 0)) Then

TextBox2.Text = Trim(myword(i, 1))

Exit Sub

End If

MessageBox.Show(" 您需要的单词不存在，请重新输入")

End If

End Sub

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

Try

TextBox1.Text = myword(ListBox1.SelectedIndex, 0)

TextBox2.Text = Trim(myword(ListBox1.SelectedIndex, 1))

Catch ex As Exception

End Try

Exit Sub

End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

Dim ch, enterwords As String

Dim j, m As Integer

If -1 = ListBox1.SelectedIndex Then

MsgBox("请选择单词", , "")

ListBox1.Focus()

Exit Sub

End If

enterwords = InputBox("请修改单词", "修改单词", Trim(myword(ListBox1.SelectedIndex, 0)))

Do While enterwords = ""

m = MsgBox("单词不能为空", MsgBoxStyle.RetryCancel, "修改单词")

If m = 4 Then

enterwords = InputBox("请修改单词", "修改单词", Trim(myword(ListBox1.SelectedIndex, 0)))

Else

Exit Sub

End If

Loop

ch = InputBox("请修改中文意思", "修改单词", Trim(myword(ListBox1.SelectedIndex, 1)))

Do While ch = ""

m = MsgBox("中文意思不能为空", MsgBoxStyle.RetryCancel, "修改单词")

If m = 4 Then

ch = InputBox("请修改中文意思", "修改单词", Trim(myword(ListBox1.SelectedIndex, 1)))

Else

Exit Sub

End If

Loop

myword(ListBox1.SelectedIndex, 1) = ch

myword(ListBox1.SelectedIndex, 0) = enterwords

FileOpen(1, filename, OpenMode.Output)

For j = 0 To words - 1

PrintLine(1, myword(j, 0) " " myword(j, 1))

FileClose(1)

MsgBox("修改成功")

ListBox1.Items.Clear()

Form1_Load(sender, e)

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

Dim i As Integer = 0

Dim k, m As Integer

Dim enterwords, ch As String

enterwords = InputBox("请输入要添加的单词", "添加单词")

Do While enterwords = ""

m = MsgBox("单词不能为空，请输入单词！", MessageBoxButtons.RetryCancel, "添加单词")

If m = 4 Then

enterwords = InputBox("请输入要添加的单词", "添加单词")

Else

Exit Sub

End If

Loop

ch = InputBox("请输入中文意思", "添加中文")

Do While ch = ""

m = MsgBox("中文不能为空，请输入中文意思！", MessageBoxButtons.RetryCancel, "添加中文")

If m = 4 Then

ch = InputBox("请输入中文意思", "添加中文")

Else

Exit Sub

End If

Loop

Do While LCase(myword(i, 0)) LCase(enterwords)

i = i + 1

If words = i Then

myword(i, 0) = enterwords

myword(i, 1) = ch

words = words + 1

FileOpen(1, filename, OpenMode.Output)

For i = 0 To words - 1

PrintLine(1, myword(i, 0) " " myword(i, 1))

ListBox1.Items.Clear()

FileClose(1)

ListBox1.Items.Clear()

Form1_Load(sender, e)

MessageBox.Show("添加成功")

Exit Sub

End If

Loop

If LCase(myword(i, 0)) = LCase(enterwords) Then

MessageBox.Show("该单词已存在！")

ListBox1.SelectedIndex = i

Exit Sub

ElseIf LCase(myword(0, 0)) LCase(enterwords) Then

For k = words To 0 Step -1

myword(k + 1, 0) = myword(k, 0)

myword(k + 1, 1) = myword(k, 1)

myword(0, 0) = enterwords

myword(0, 1) = ch

words = words + 1

FileOpen(1, filename, OpenMode.Output)

For i = 0 To words - 1

PrintLine(1, myword(i, 0) " " myword(i, 1))

ListBox1.Items.Clear()

FileClose(1)

Form1_Load(sender, e)

MessageBox.Show("添加成功")

Exit Sub

End If

For k = words To i + 1 Step -1

myword(k + 1, 0) = myword(k, 0)

myword(k + 1, 1) = myword(k, 1)

Next k

myword(i, 0) = enterwords

myword(i, 1) = ch

words = words + 1

FileOpen(1, filename, OpenMode.Output)

For i = 0 To words - 1

PrintLine(1, myword(i, 0) " " myword(i, 1))

FileClose(1)

ListBox1.Items.Clear()

Form1_Load(sender, e)

MessageBox.Show("添加成功")

Exit Sub

End Sub

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click

Dim i, j, k As Integer

If -1 = ListBox1.SelectedIndex Then

MsgBox("请选择单词", , "")

ListBox1.Focus()

Exit Sub

End If

k = MsgBox("确定是否删除", MsgBoxStyle.YesNo, "提示")

If k = 6 Then

For i = ListBox1.SelectedIndex To words

myword(i, 0) = myword(i + 1, 0)

myword(i, 1) = myword(i + 1, 1)

words = words - 1

FileOpen(1, filename, OpenMode.Output)

For j = 0 To words - 1

PrintLine(1, myword(j, 0) " " myword(j, 1))

FileClose(1)

MsgBox("单词已删除")

ListBox1.Items.RemoveAt(ListBox1.SelectedIndex)

ListBox1.Refresh()

TextBox1.Text = ""

TextBox2.Text = ""

Exit Sub

Else

Exit Sub

End If

End Sub

Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click

TextBox1.Text = ""

TextBox2.Text = ""

End Sub

End Class

这是代码，文字性的内容自己去做。

在VB.NET中字典对象是什么意思

你可以简单的理解为定义一个字典对象相当于定义一个二维数组但是比数组使用起来方便快捷

vs2008 中vb.net可不可以向c#中一样使用集合初始化字典

Dim result As New Dictionary(Of Byte, Byte())() From { _

1, _

New Byte() {Hff, H0, H0} _

}

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包含vb.net字典的使用的词条

VB.NET 中的Of是什么意思

用VB语言制作英汉小辞典

在VB.NET中字典对象是什么意思

vs2008 中vb.net可不可以向c#中一样使用集合初始化字典

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