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请问Vb.net编程代码 ， 不要C语言的，我看不懂?。?/h2>Imports System
Module Program
Sub Main()
Dim n As Integer
n=6
Console.WriteLine("{0}!={1}",n,fact(n))
n=10
For i As Integer=1 To n
Console.Write("{0}{1}",fibo(i),IIF(n=i,vbCrLf,","))
Next
Console.Write("按任意键继续 。。。")
Console.ReadKey(True)
End Sub
' 递归算阶乘
Function fact(n As Long) As Long
If 0=n OrElse 1=n Then Return 1
Return n*fact(n-1)
End Function
' 递归算斐波那契数列
Function fibo(n As Long) As Long
If 1=n OrElse 2=n Then Return 1
Return fibo(n-1) fibo(n-2)
End Function
End Module
用vb.net编写记事本源代码Dim sFileName As String
Dim Search
Private Sub dateTimeMenu_Click()
Text1.Text = Now
End Sub
Private Sub deleteMenu_Click()
Text1.Text = Left(Text1.Text, Text1.SelStart)Mid(Text1.Text, Text1.SelStartText1.SelLength1)
End Sub
Private Sub findMenu_Click()
Search = InputBox("请输入要查找的字词：")
Dim Where1 '获取需要查找的字符串变量
Text1.SetFocus '文本框获得焦点 ， 以显示所找到的内容Search = InputBox("请输入要查找的字词：")
Where1 = InStr(Text1.Text, Search) '在文本中查找字符串
If Where1 Then
'若找到则设置选定的起始位置并使找到的字符串高亮
Text1.SelStart = Where1 - 1
Text1.SelLength = Len(Search)
' Me.Caption = Where1 '测试用
'否则给出提示
Else: MsgBox "未找到所要查找的字符串 。", vbInformation, "提示"
End If
End Sub
Private Sub findNextMenu_Click()
Dim Where2
Dim StartMe As Integer '查找的起始位置变量
Text1.SetFocus '文本框获得焦点
StartMe = Text1.SelLengthText1.SelStart1 '给变量赋值
Where2 = InStr(StartMe, Text1.Text, Search) '令其从上次找到的地方找起
If Where2 Then
Text1.SelStart = Where2 - 1
Text1.SelLength = Len(Search)
Else: MsgBox "未找到所要查找的字符串.", vbInformation, "提示"
End If
End Sub
Private Sub aboutMenu_Click()
MsgBox Space(2)"文本编辑器版本号1.0"Chr(13)"由西南财经大学天府学院"Chr(13)Space(5)"肖忠 开发"Chr(13)Space(2)"copyright:天府学院"
End Sub
Private Sub allMenu_Click()
Text1.SelStart = 0
Text1.SelLength = Len(Text1.Text)
End Sub
Private Sub backcolorMenu_Click()'设置背景色代码
Form1.CommonDialog1.Action = 3
Text1.BackColor = Form1.CommonDialog1.Color
End Sub
Private Sub colorMenu_Click()'改变文字颜色代码
Form1.CommonDialog1.Action = 3
Text1.ForeColor = Form1.CommonDialog1.Color
End Sub
Private Sub cutMenu_Click()
Clipboard.SetText Text1.SelText
Text1.Text = Left(Text1.Text, Text1.SelStart)Mid(Text1.Text, Text1.SelStartText1.SelLength1)
End Sub
Private Sub exitMenu_Click()
End
End Sub
Private Sub fontMenu_Click()'字体菜单代码
Form1.CommonDialog1.Flags = 3 Or 256
Form1.CommonDialog1.Action = 4
If Len(Form1.CommonDialog1.FontName) = 0 Then
Form1.Text1.FontName = "宋体"
Else
Form1.Text1.FontName = Form1.CommonDialog1.FontName
End If
Form1.Text1.FontSize = Form1.CommonDialog1.FontSize
If Form1.CommonDialog1.FontBold = True Then
Form1.Text1.FontBold = True
Else
Form1.Text1.FontBold = False
End If
If Form1.CommonDialog1.FontItalic = True Then
Form1.Text1.FontItalic = True
Else
Form1.Text1.FontItalic = False
End If
Text1.ForeColor = Form1.CommonDialog1.Color
End Sub
Private Sub Form_Load()
Form1.Text1.Width = Form1.Width - 130
Form1.Text1.Height = Form1.Height
End Sub
Private Sub Form_Resize()
Form1.Text1.Width = Form1.Width - 130
Form1.Text1.Height = Form1.Height
End Sub
Private Sub help1Menu_Click()
Form1.CommonDialog1.HelpCommand = cdlHelpForceFile
Form1.CommonDialog1.HelpFile = "c:\windows\system32\winhelp.hlp"
CommonDialog1.ShowHelp
End Sub
Private Sub newMenu_Click()
If Len(Trim(Text1.Text)) = 0 Then
Form1.Caption = "我的记事本""--""未命名"
sFileName = "未命名"
Text1.FontSize = 15
Text1.FontName = "宋体"
Text1.Text = ""
Else
Call saveAsMenu_Click
Form1.Caption = "我的记事本""--""未命名"
sFileName = "未命名"
Text1.FontSize = 15
Text1.FontName = "宋体"
Text1.Text = ""
End If
End Sub
Private Sub openMenu_Click()'打开文件代码
If Len(Trim(Text1.Text)) = 0 Then
Form1.Caption = "我的记事本"
Form1.CommonDialog1.Filter = "文本文件|*.txt"
Form1.CommonDialog1.Flags = 4096
Form1.CommonDialog1.Action = 1
If Len(Form1.CommonDialog1.FileName)0 Then
sFileName = Form1.CommonDialog1.FileName
Form1.Caption = Form1.Caption"--"Form1.CommonDialog1.FileTitle
Open sFileName For Input As #1
Text1.FontSize = 15
Text1.FontName = "宋体"
Do While Not EOF(1)
【vb.net公用代码 vbnet com】Line Input #1, Text$
All$ = All$Text$Chr(13)Chr(10)
Loop
Text1.Text = All
Close #1
End If
Else
Call saveAsMenu_Click
Form1.Caption = "我的记事本"
Form1.CommonDialog1.Filter = "文本文件|*.txt"
Form1.CommonDialog1.Flags = 4096
Form1.CommonDialog1.Action = 1
If Len(Form1.CommonDialog1.FileName)0 Then
sFileName = Form1.CommonDialog1.FileName
Form1.Caption = Form1.Caption"--"Form1.CommonDialog1.FileTitle
Open sFileName For Input As #1
Text1.FontSize = 15
Text1.FontName = "宋体"
Do While Not EOF(1)
Line Input #1, Text$
All$ = All$Text$Chr(13)Chr(10)
Loop
Text1.Text = All
Close #1
End If
End If
End Sub
Private Sub pasteMenu_Click()'粘贴菜单代码
Text1.Text = Left(Text1.Text, Text1.SelStart)Clipboard.GetText()Mid(Text1.Text, Text1.SelStartText1.SelLength1)
End Sub
Private Sub printMenu_Click()
Form1.CommonDialog1.ShowPrinter
For i = 1 To CommonDialog1.Copies
Printer.Print Text1.Text
Printer.Print Text1.Text
Next
Printer.EndDoc
End Sub
Private Sub saveAsMenu_Click()'另存为菜单代码
If Len(Trim(Text1.Text))0 Then
Form1.CommonDialog1.DialogTitle = "保存文件"
Form1.CommonDialog1.InitDir = "D:\"
Form1.CommonDialog1.Filter = "文本文件|*.txt"
Form1.CommonDialog1.Flags = 2
Form1.CommonDialog1.ShowSave
If Len(Form1.CommonDialog1.FileName)0 Then
sFileName = Form1.CommonDialog1.FileName
Open sFileName For Output As #1
whole$ = Text1.Text
Print #1, whole
Close #1
End If
End If
End Sub
Private Sub saveMenu_Click()
If Len(Trim(Text1.Text))0 Then
Form1.CommonDialog1.DialogTitle = "保存文件"
Form1.CommonDialog1.InitDir = "D:\"
Form1.CommonDialog1.FileName = "新建文本"
Form1.CommonDialog1.Filter = "文本文件|*.txt"
Form1.CommonDialog1.Flags = 2
Form1.CommonDialog1.ShowSave
If Len(Form1.CommonDialog1.FileName)0 Then
sFileName = Form1.CommonDialog1.FileName
Open sFileName For Output As #1
whole$ = Text1.Text
Print #1, whole
Close #1
End If
End If
End Sub
Private Sub statusMenu_Click()
End Sub
跪求vb.net代码新建窗口，添加picture控件
利用line()方法画线
line(开始x坐标,开始y坐标)-(结束x坐标,结束y坐标),线的颜色，画线的方式(默认为线，B为矩形无填充，BF为填充的矩形)
For i = 1 To 16
Picture1.Line (0, Picture1.Height / 2)-(i * (Picture1.Width / 16), 0), RGB(255, 0, 0)
Picture1.Line (0, Picture1.Height / 2)-(i * (Picture1.Width / 16), Picture1.Height), RGB(255, 0, 0)
Picture1.Line (Picture1.Width, Picture1.Height / 2)-(i * (Picture1.Width / 16), 0), RGB(0, 255, 0)
Picture1.Line (Picture1.Width, Picture1.Height / 2)-(i * (Picture1.Width / 16), Picture1.Height), RGB(0, 255, 0)
Next i
如果要在窗口上画也可以调用窗口的line方法即form.line()
VB.NET中的代码大概的过程：
Imports System.Data
Imports System.Data.SqlClient
--------------
Dim a As New SqlDataAdapter
Dim con As SqlConnection
con = New SqlConnection( "Persist Security Info=False;Integrated Security=SSPI;database=northwind;server=.;Connect Timeout=30")
con.Open()
a.SelectCommand = New SqlCommand("select *fromtablewhere c=1", con)
a.UpdateCommand = New SqlCommand("update table set b=2where c=1", con)
a.DeleteCommand = New SqlCommand("deletefromtablewhere c=1", con)
a.InsertCommand = New SqlCommand("insert intotable values (1,2,3)", con)
a.SelectCommand.ExecuteNonQuery()
a.UpdateCommand.ExecuteNonQuery()
a.DeleteCommand.ExecuteNonQuery()
a.InsertCommand.ExecuteNonQuery()
con.Close()
a.Dispose()
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