如何使用VB编写一个简单的小程序

Dim sec, min, h

Private Sub Command1_Click()

Timer1.Enabled = True

h = Text1.Text

min = Text2.Text

sec = Text3.Text

Timer2.Enabled = False

End Sub

Private Sub Command2_Click()

End

End Sub

Private Sub Form_Load()

Form1.BackColor = &HFFFF00

Timer1.Enabled = False

Timer1.Interval = 1000

Timer2.Enabled = True

Timer2.Interval = 1000

Text1.Text = 2

Text2.Text = "00"

Text3.Text = "00"轮握

Command2.Caption = "腊册庆退出"

Command1.Caption = "开始倒计时"姿罩

End Sub

Private Sub Timer1_Timer()

If sec >0 Then

sec = sec - 1

Else:

If (min >0 Or h >0) Then

sec = 59

End If

If min >0 Then

min = min - 1

Else:

If h >0 Then

min = 59

End If

If h >0 Then

h = h - 1

Else: Timer1.Enabled = False

CreateObject("SAPI.SpVoice").Speak "GAME OVER!"

Form1.BackColor = &HFF

End If

End If

End If

Text1.Text = h

Text2.Text = min

Text3.Text = sec

Label6.Caption = Now

End Sub

Private Sub Timer2_Timer()

Label6.Caption = Now

End Sub

1. 用VB新建镇哪一个此橘标准EXE程序

2. 用 Lable 、TextBox 和 CommandButton 控件在窗体中设计界面如下：

3. 双击“抽取”按钮，并在代码窗御扒码口中修改代码如下：

Private Sub Command1_Click()

  Dim v1 As Long, v2 As Long, v3 As Long

  v1 = Val(Text1)

  v2 = Val(Text2)

  v3 = Int(Rnd(1) * (v2 - v1 + 1)) + v1

  Text3.Text = v3

End Sub

4.按F5运行，并进行测试即可

Dim a, b

Private Sub Command1_Click()

End

End Sub

Private Sub Form_Load()

Text.Text = "Visual Basic程序设计"唯仔冲

Command1.Caption = "指歼结束"

Text.Left = 0: Text.Top = 0: Text.Width = 0.5 * Form1.Width

Text.Height = 0.5 * Form1.Height

a = Form1.Width - Command1.Left

b = Form1.Height - Command1.Top

End Sub

Private Sub Form_Resize()

Text.Left = 0: Text.Top = 0: Text.Width = 0.5 * Form1.Width

Text.Height = 0.5 * Form1.Height

Command1.Left = Form1.Width - a

Command1.Top = Form1.Height - b

End Sub

注意，各变戚神量名，控件名保持一致,你题目中的文本框名称为text

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