本文整理匯總了VB.NET中System.Console.Beep方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET Console.Beep方法的具體用法？VB.NET Console.Beep怎麽用？VB.NET Console.Beep使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Console的用法示例。
在下文中一共展示了Console.Beep方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: Sample
' This example demonstrates the Console.Beep() method.
Class Sample
Public Shared Sub Main(args() As String)
Dim x As Integer = 0
Dim i As Integer
'
If (args.Length = 1) _
AndAlso (Int32.TryParse(args(0), x) = True) _
AndAlso ((x >= 1) AndAlso (x <= 9)) Then
For i = 1 To x
Console.WriteLine("Beep number {0}.", i)
Console.Beep()
Next i
Else
Console.WriteLine("Usage: Enter the number of times (between 1 and 9) to beep.")
End If
End Sub
End Class輸出：
>beep Usage: Enter the number of times (between 1 and 9) to beep >beep 9 Beep number 1. Beep number 2. Beep number 3. Beep number 4. Beep number 5. Beep number 6. Beep number 7. Beep number 8. Beep number 9.
示例2: Sample
' This example demonstrates the Console.Beep(Int32, Int32) method
Imports System.Threading
Class Sample
Public Shared Sub Main()
' Declare the first few notes of the song, "Mary Had A Little Lamb".
Dim Mary As Note() = { _
New Note(Tone.B, Duration.QUARTER), _
New Note(Tone.A, Duration.QUARTER), _
New Note(Tone.GbelowC, Duration.QUARTER), _
New Note(Tone.A, Duration.QUARTER), _
New Note(Tone.B, Duration.QUARTER), _
New Note(Tone.B, Duration.QUARTER), _
New Note(Tone.B, Duration.HALF), _
New Note(Tone.A, Duration.QUARTER), _
New Note(Tone.A, Duration.QUARTER), _
New Note(Tone.A, Duration.HALF), _
New Note(Tone.B, Duration.QUARTER), _
New Note(Tone.D, Duration.QUARTER), _
New Note(Tone.D, Duration.HALF)}
' Play the song
Play(Mary)
End Sub
' Play the notes in a song.
Protected Shared Sub Play(tune() As Note)
Dim n As Note
For Each n In tune
If n.NoteTone = Tone.REST Then
Thread.Sleep(CInt(n.NoteDuration))
Else
Console.Beep(CInt(n.NoteTone), CInt(n.NoteDuration))
End If
Next n
End Sub
' Define the frequencies of notes in an octave, as well as
' silence (rest).
Protected Enum Tone
REST = 0
GbelowC = 196
A = 220
Asharp = 233
B = 247
C = 262
Csharp = 277
D = 294
Dsharp = 311
E = 330
F = 349
Fsharp = 370
G = 392
Gsharp = 415
End Enum 'Tone
' Define the duration of a note in units of milliseconds.
Protected Enum Duration
WHOLE = 1600
HALF = WHOLE / 2
QUARTER = HALF / 2
EIGHTH = QUARTER / 2
SIXTEENTH = EIGHTH / 2
End Enum 'Duration
' Define a note as a frequency (tone) and the amount of
' time (duration) the note plays.
Protected Structure Note
Private toneVal As Tone
Private durVal As Duration
' Define a constructor to create a specific note.
Public Sub New(frequency As Tone, time As Duration)
toneVal = frequency
durVal = time
End Sub
' Define properties to return the note's tone and duration.
Public ReadOnly Property NoteTone() As Tone
Get
Return toneVal
End Get
End Property
Public ReadOnly Property NoteDuration() As Duration
Get
Return durVal
End Get
End Property
End Structure 'Note '
'This example produces the following results:
'
'This example plays the first few notes of "Mary Had A Little Lamb"
'through the console speaker.
'
End Class