public partial class Form1 : Form{private System.Windows.Forms.Timer[] ts = new System.Windows.Forms.Timer[6];public Form1(){  InitializeComponent();  }void t_Tick(object sender, EventArgs e){  ((System.Windows.Forms.Timer)sender).Enabled = false;  SendKeys.SendWait("{Enter}");}private void button1_Click(object sender, EventArgs e){  Action act = new Action(() =>   { for (int i = 0; i < 6; i++) {   ts[i] = new System.Windows.Forms.Timer();   ts[i].Tick += t_Tick;   ts[i].Interval = 2000;   ts[i].Enabled = true;   MessageBox.Show("MsgBox" + (i + 1));   Thread.Sleep(2000); }  });  act.BeginInvoke(null, null);}}Public Partial Class Form1  Inherits Form  Private ts As System.Windows.Forms.Timer() = New System.Windows.Forms.Timer(5) {}  Public Sub New()    InitializeComponent()  End Sub  Private Sub t_Tick(sender As Object, e As EventArgs)    DirectCast(sender, System.Windows.Forms.Timer).Enabled = False    SendKeys.SendWait("{Enter}")  End Sub  Private Sub button1_Click(sender As Object, e As EventArgs)    Dim act As New Action(Sub()     For i As Integer = 0 To 5      ts(i) = New System.Windows.Forms.Timer()      AddHandler ts(i).Tick, AddressOf t_Tick      ts(i).Interval = 2000      ts(i).Enabled = True      MessageBox.Show("MsgBox" & (i + 1))      Thread.Sleep(2000)    NextEnd sub)    act.BeginInvoke(Nothing, Nothing)  End SubEnd Class