vb.net相册源代码 代码相册源代码
如何用vb.net获得网页的源代码
Dim url As String=" 网址"
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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 ' 获取或设置一个值,该值指示是否与
Internet资源建立持久连接。
Dim reader As StreamReader = _
New StreamReader(httpResp.GetResponseStream,
System.Text.Encoding.GetEncoding(-0))
Dim respHTML As String = reader.ReadToEnd() 'respHTML就是网页源代码
怎样用VB编程弄一个相册?
首先把那些人的相片都放到一个文件夹里 (比如D:\PHTO 文件夹里,并且名字命名为 相片主人的名字;名字+1;名字+2......)
新建一个工程, 添加 TEXT1.TEXT , 按钮 , IMAGE 控件.
按钮的单击代码,我只说大概:
IF TEXT1.TEXT = "自己的照片" THEN
image.picture=loadpicture("d:\photo\" + TEXT1.TEXT + ".JPG")
然后在添加个按钮, 名字为: 下一张
单击代码: image.picture=loadpicture("d:\photo\自己的照片" + "1" + ".JPG")
BitBlt
StretchBlt
用VB.NET制作相册
假设有三张图片在资源里,VB.NET不允许资源的名字是纯数字,假设取名Image1,Image2......
Dim Images() As System.Drawing.Bitmap = {My.Resources.Image1, My.Resources.Image2, My.Resources.Image3}
Dim CurrentImage As Integer
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
If CurrentImage 2 Then CurrentImage += 1 Else CurrentImage = 0
PictureBox1.Image = Images(CurrentImage)
End Sub
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
If CurrentImage 0 Then CurrentImage -= 1 Else CurrentImage = 2
PictureBox1.Image = Images(CurrentImage)
End Sub
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