求vb.net的源代碼，最好說明其解決問題，越多越好，滿意加50分。

下面這段代碼，是我用來計算每個月存500元進(jìn)銀行，連續(xù)30年，最后連本帶利能有多少錢。這里面涉及復(fù)利計算。界面中右邊的文本框用來輸出每一次計算的結(jié)果。

云浮網(wǎng)站建設(shè)公司創(chuàng)新互聯(lián),云浮網(wǎng)站設(shè)計制作，有大型網(wǎng)站制作公司豐富經(jīng)驗。已為云浮上千家提供企業(yè)網(wǎng)站建設(shè)服務(wù)。企業(yè)網(wǎng)站搭建\成都外貿(mào)網(wǎng)站制作要多少錢，請找那個售后服務(wù)好的云浮做網(wǎng)站的公司定做！

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

? Dim nianxian As Integer '年限變量

? Dim dingcun As Integer '定存變量

? Dim fuli_big As Long '大復(fù)利

? Dim fuli_small As Long '小復(fù)利

? Dim i As Integer '循環(huán)變量

? Dim DATAstring As String '數(shù)據(jù)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

? 結(jié)果_TextBox.Text = Str(fuli_big) + "元"

End Sub

如何用vb.net獲得網(wǎng)頁的源代碼

Dim url As String=" 網(wǎng)址"

Dim httpReq As System.Net.HttpWebRequest

Dim httpResp As System.Net.HttpWebResponse

Dim httpURL As New System.Uri(url)

httpReq = CType(WebRequest.Create(httpURL), HttpWebRequest)

httpReq.Method = "GET"

httpResp = CType(httpReq.GetResponse(), HttpWebResponse)

httpReq.KeepAlive = False ' 獲取或設(shè)置一個值，該值指示是否與

Internet資源建立持久連接。

Dim reader As StreamReader = _

New StreamReader(httpResp.GetResponseStream,

System.Text.Encoding.GetEncoding(-0))

Dim respHTML As String = reader.ReadToEnd() 'respHTML就是網(wǎng)頁源代碼

VB.NET2005中如何表示或定義一個復(fù)數(shù)

定義一個類，由兩個屬性構(gòu)成，一個實部，一個虛部，都用雙精度。