vb.net常用代码 VBNET教程
跪求vb.net代码
新建窗口，添加picture控件
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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()
求vb.net的源代码，最好说明其解决问题，越多越好，满意加50分。
下面这段代码，是我用来计算每个月存500元进银行，连续30年，最后连本带利能有多少钱。这里面涉及复利计算。界面中右边的文本框用来输出每一次计算的结果。
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim nianxian As Integer '年限变量
Dim dingcun As Integer '定存变量
Dim fuli_big As Long '大复利
Dim fuli_small As Long '小复利
Dim i As Integer '循环变量
Dim DATAstring As String '数据字符串
nianxian = Val(年限_TextBox.Text)
dingcun = Val(定存_TextBox.Text)
DATAstring = ""
For i = 1 To nianxian
fuli_small = dingcun * (1 + 0.1875)
dingcun = fuli_small
fuli_big = fuli_big + fuli_small
DATAstring = DATAstring + "[" + Trim(Str(i)) + "]" + Str(fuli_big) + Chr(13) + Chr(10)
'DATAstring = DATAstring + "[" + Trim(Str(i)) + "]" + Str(fuli_small) + Chr(13) + Chr(10)
Next
'fuli_big = fuli_small
TextBox1.Text = DATAstring
结果_TextBox.Text = Str(fuli_big) + "元"
End Sub
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 * from table where c=1", con)
a.UpdateCommand = New SqlCommand("update table set b=2 where c=1", con)
a.DeleteCommand = New SqlCommand("delete from table where c=1", con)
a.InsertCommand = New SqlCommand("insert into table values (1,2,3)", con)
a.SelectCommand.ExecuteNonQuery()
a.UpdateCommand.ExecuteNonQuery()
a.DeleteCommand.ExecuteNonQuery()
a.InsertCommand.ExecuteNonQuery()
con.Close()
a.Dispose()
请问Vb.net编程代码，不要C语言的，我看不懂啊？
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
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