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VB 的變量命名規(guī)則??
b錯了因為vb變量名不能有空格答案應(yīng)該是d
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必須以字母開頭不能有特殊的名稱d選項沒問題
vb.net中 a*2/3是合法變量嗎 如題
兩個都不是,xyz2 _pp 這兩個是合法的,變量命名規(guī)則是,不能以數(shù)字開頭,可以用下劃線開頭,下劃線按法,按住shift鍵不放再按減號,輸入法必須是英文狀態(tài)下
VB高手來幫幫,本人菜鳥一枚
A AND
D [10,99]
CFalse
D IsMdi container
C Menustrip
B ForeColor
D.PasswordChar
A關(guān)系或邏輯表達(dá)式
D byte
C True
B.藍(lán)色
C F5
A任何情況下,通過窗體名稱都可以實現(xiàn)窗體間的調(diào)用
B RadioButton
D DropDownList
vb.net中,如何使textbox禁止輸入/,*,?,(也就是文件名命名規(guī)則里限制的那幾個
這個應(yīng)該可以,已經(jīng)通過VB2010測試:
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
If TextBox1.Text "" Then
If Microsoft.VisualBasic.Right(TextBox1.Text, 1) = "/" Or Microsoft.VisualBasic.Right(TextBox1.Text, 1) = "*" Or _
Microsoft.VisualBasic.Right(TextBox1.Text, 1) = "?" Or Microsoft.VisualBasic.Right(TextBox1.Text, 1) = "" Or _
Microsoft.VisualBasic.Right(TextBox1.Text, 1) = "" Then
TextBox1.Text = Microsoft.VisualBasic.Left(TextBox1.Text, Len(TextBox1.Text) - 1)
TextBox1.SelectionStart = Len(TextBox1.Text)
End If
End If
End Sub
VB.NET中標(biāo)準(zhǔn)的實體類怎么寫的,請教VB高手指導(dǎo)
'代碼來源:代碼街codejie.net
'由于在vb.net里變量名不區(qū)分大小寫(StuName和stuname是一樣的),所以個別變量名需要修改
'在vb.net中,模塊級變量的命名原則是以m_開頭
Public Class Student
Private m_stuNo As String '學(xué)生號字段
Private m_stuName As String '學(xué)生姓名字段
Private m_stuAge As Integer '學(xué)生年齡字段
Private m_stuAddress As String '學(xué)生住址字段
'無參構(gòu)造方法
Public Sub New()
End Sub
'有參構(gòu)造方法
Public Sub New(ByVal stuNo As String, ByVal stuName As String, ByVal stuAge As Integer, ByVal stuAddress As String)
m_stuNo = stuNo
m_stuName = stuName
m_stuAge = stuAge
m_stuAddress = stuAddress
End Sub
'學(xué)生號屬性
Public Property StuNo() As String
Get
Return m_stuNo
End Get
Set(ByVal value As String)
m_stuNo = value
End Set
End Property
'學(xué)生姓名屬性
Public Property StuName() As String
Get
Return m_stuName
End Get
Set(ByVal value As String)
m_stuName = value
End Set
End Property
'學(xué)生年齡屬性
Public Property StuAge() As Integer
Get
Return m_stuAge
End Get
Set(ByVal value As Integer)
m_stuAge = value
End Set
End Property
'學(xué)生住址屬性
Public Property StuAddress() As String
Get
Return m_stuAddress
End Get
Set(ByVal value As String)
m_stuAddress = value
End Set
End Property
End Class
文章名稱:vb.net命名規(guī)則,vb常量的命名規(guī)則
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