Question

我有两个在Visual Studio中运行的计时器，其中一个工作正常，但是当它在运行时按任意键时其他计时器停止，如果我没有按任何键，它工作正常。对不起，如果这个XD的代码很乱。

Private Sub Form1_KeyDown(sender As Object, e As KeyEventArgs) Handles MyBase.KeyDown
    If PictureBox2.Top = 277 Then
        Label3.Text = "Label3"
    End If
    If e.KeyCode = Keys.W And Label3.Text = "Label3" Or Label3.Text = "single" And e.KeyCode = Keys.W Then
        PictureBox2.Top = PictureBox2.Top - 64
    End If
    If PictureBox2.Top = 213 Then
        Label3.Text = "single"
    End If
    If e.KeyCode = Keys.W Then
        Label1.Text = "0"
    End If
    If Label1.Text = "0" And Label3.Text = "single" Then
        Label2.Text = "0"
    End If
    If e.KeyCode = Keys.W Then
        Timer1.Enabled = True
    End If
    If PictureBox2.Top = 149 Then
        Label3.Text = "double"
    End If
    If Label3.Text = "double" Then
        Timer2.Enabled = True And Label2.Text = "0"
    End If
End Sub
Friend WithEvents Timer1 As System.Windows.Forms.Timer

Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
    Label1.Text = Label1.Text + 1
    If Label1.Text = "30" Then
        Timer1.Enabled = False
    End If
    If Timer1.Enabled = False And Label3.Text = "single" Then
        PictureBox2.Top = PictureBox2.Top + 64
    End If
End Sub
Friend WithEvents Label1 As System.Windows.Forms.Label

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

End Sub
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents Timer2 As System.Windows.Forms.Timer

Private Sub Timer2_Tick(sender As Object, e As EventArgs) Handles Timer2.Tick
    Label2.Text = Label2.Text + 1
    If Label3.Text = "double" Then
        Timer2.Enabled = True
    End If
    If Label2.Text = "30" Then
        Timer2.Enabled = False
    End If
    If Timer2.Enabled = False And Label3.Text = "double" Then
        PictureBox2.Top = PictureBox2.Top + 128
    End If
End Sub

Answer 1

我不是一个vb.net人，因此我可以完全脱离基础并为它投票，但这一行看起来不对： True and Label2.Text = "0"

用一种理智的语言，将被视为：

将Time2.Enabled设置为右侧值，（True and [Anything]） [Anything]逻辑Timer2.Enabled ...假设Label2.Text不是“0”，因此将query.setQuery("select A, sum(C) group by A ");设置为false，这可能不是您想要的

此代码可能存在其他问题，但我会从那个问题开始。

任何按钮在vb.net中停止计时器

1 个答案: