Dim vCode As String@H_404_3@

Private Sub Command1_Click()@H_404_3@

drawvc@H_404_3@

End Sub@H_404_3@

Private Sub drawvc() '显示校验码@H_404_3@

Dim i,vc,px,py As Long@H_404_3@

Dim r,g,b As Byte@H_404_3@

Randomize '初始化随机种子
'生成随机校验码
vc = CLng(8999 * Rnd + 1000)@H_404_3@

vCode = vc
'显示校验码
Picture1.Cls@H_404_3@

Picture1.Print vc
'添加噪点（防止自动图像识别）@H_404_3@

For i = 0 To 2000 '画2000个噪点
'画点随机位置@H_404_3@

px = CLng(Picture1.Width * Rnd)@H_404_3@

py = CLng(Picture1.Height * Rnd)
'画点随机颜色
r = CByte(255 * Rnd)@H_404_3@

g = CByte(255 * Rnd)@H_404_3@

b = CByte(255 * Rnd)@H_404_3@

Picture1.Line (px,py)-(px + 1,py + 1),RGB(r,b)@H_404_3@

Next@H_404_3@

End Sub@H_404_3@

Private Sub Form_Load()@H_404_3@

Text1.Text = ""@H_404_3@

Text2.Text = ""@H_404_3@

Text3.Text = ""@H_404_3@

Picture1.FontSize = 12@H_404_3@

Picture1.FontBold = True@H_404_3@

Picture1.AutoRedraw = True@H_404_3@

drawvc@H_404_3@

End Sub@H_404_3@

Private Sub Command2_Click()@H_404_3@

Adodc1.RecordSource = "select * from useri where id='" & Text1.Text & "' and password='" & Text2.Text & "'"@H_404_3@

Adodc1.Refresh@H_404_3@

If Adodc1.Recordset.RecordCount > 0 And Text3.Text = vCode Then@H_404_3@

MsgBox ("登陆成功")@H_404_3@

ElseIf Text1.Text = "" Then

MsgBox ("用户名不能为空！"),vbOKOnly + vbInformation,"警告"


ElseIf Text2.Text = "" Then

MsgBox ("密码不能为空！"),"警告"


ElseIf Text3.Text = "" Then

MsgBox ("请输入验证码！"),"警告"
Else@H_404_3@

MsgBox ("您输入的密码或用户名错误"),"警告"@H_404_3@

End If@H_404_3@

End Sub@H_404_3@

Private Sub Command3_Click()@H_404_3@

End@H_404_3@

End Sub@H_404_3@

哪位高手帮我看看错在哪？？？？@H_404_3@

急用！！！！！！！@H_404_3@