我已经创建了一个与计算机时间同步的实时时钟,并显示在标签中。
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Timer1.Enabled = True
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Time.Text = Date.Now.ToString("h:mm:ss tt")
End Sub
我想制作一个实时时间经过的功能,它会根据我创建的实时时钟不断计算从开始到停止的时间经过的秒/分钟/小时。我将为此创建一个开始和停止按钮。这可能吗?提前致谢。
<小时/>我现在能够完成所有事情,并且我添加了一个功能,可以根据我的实时时钟记录开始和结束时间。这是我的工作代码:
Dim hr, min, sec As Integer
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Timer1.Enabled = True
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Time.Text = Date.Now.ToString("h:mm:ss tt")
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Start.Text = ""
EndLbl.Text = ""
Elapse.Text = ""
Timer2.Enabled = True
Start.Text = Time.Text
End Sub
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
sec = sec + 1
If (sec = 60) Then
sec = 0
min = min + 1
ElseIf (min = 60) Then
min = 0
hr = hr + 1
ElseIf (hr = 24) Then
hr = 0
min = 0
sec = 0
End If
Elapse.Text = String.Format("{0}hr : {1}min : {2}sec", hr, min, sec)
Timer2.Interval = 1000
End Sub
Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
Timer2.Enabled = False
EndLbl.Text = Label4.Text
hr = 0
min = 0
sec = 0
Timer2.Interval = 1
End Sub
归功于 NeverHopeless 给出的起始代码。非常感谢。
最佳答案
我建议您只使用 1 个计时器:
Public Class Form2
Private _elapseTimerRunning As Boolean = False
Private _elapseStartTime As DateTime
Private Sub Form2_Load(sender As Object, e As EventArgs) Handles Me.Load
Timer1.Interval = 1000
Timer1.Enabled = True
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
txtTime.Text = Now.ToString("h:mm:ss tt")
If _elapseTimerRunning = True Then
Dim elapsedtime = DateTime.Now.Subtract(_elapseStartTime)
txtElapsed.Text = String.Format("{0}hr : {1}min : {2}sec", elapsedtime.Hours, elapsedtime.Minutes, elapsedtime.Seconds)
End If
End Sub
Private Sub btnStart_Click(sender As Object, e As EventArgs) Handles btnStart.Click
_elapseStartTime = DateTime.Now
_elapseTimerRunning = True
End Sub
Private Sub btnStop_Click(sender As Object, e As EventArgs) Handles btnStop.Click
_elapseTimerRunning = False
End Sub
下课
关于VB.net实时时间经过功能,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18841933/