vb.net倒计时程序的简单介绍
求高手用vb.net做一个倒计时程序。
画面添加textbox1 timer1
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Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Timer1.Interval = 1000
TextBox1.Text = "2011/12/07 10:35:00"
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If IsDate(TextBox1.Text) = True Then
Timer1.Start()
End If
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If Format(Now, "yyyy/MM/dd hh:mm:ss") = TextBox1.Text Then
MsgBox("It's time to go")
Timer1.Stop()
End If
End Sub
用vb.net做一个倒计时程序,要完整的文件
Public Class Form1
Inherits System.Windows.Forms.Form
Dim t As System.DateTime
Dim c As Integer
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
c = TextBox1.Text
If Timer1.Enabled Then
Timer1.Stop()
Else
t = Now.AddHours(c)
Timer1.Start()
End If
Catch ex As Exception
MsgBox("")
End Try
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim d As TimeSpan = t.Subtract(Now)
Label1.Text = d.Hours "小时" d.Minutes "分钟" d.Seconds "秒"
End Sub
End Class
VB.net中如何用timer控件编出一个简单的倒计时器?
Dim tCount As Integer '用来计数
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
tCount = 10
Timer1.Interval = 1000 '每秒执行一次
Timer1.Enabled = True
End
Sub
Private Sub
Timer1_Tick(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Timer1.Tick
tCount -= 1
If tCount = 0 Then
MessageBox.Show("时间到")
Timer1.Enabled = False
End If
End
Sub
文章题目:vb.net倒计时程序的简单介绍
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