蜂鸣器是怎么发声的如下代码，为什么不发声呢

程序是从main函数开始执行的，你没有加循环条件，当然执行一次就不再执行了，不过好像有些编译软件会在你不加循环条件也会循环执行的，改成如下再试试

void main()

{

while(1)

{

Beep=0;

Delay(5000);

}

}

楼上写的程序是无源蜂鸣器的，如果你的是有源的蜂鸣器只需要给低电平即可，不需要给方波

右键“我的电脑”->“管理”->“设备管理器”。打开菜单的“查看”项，并点选“显示隐藏的设备”。

此时展开新出现的“非即插即用驱动程序”，找到“Beep”项，右键点击该项并点选属性。

在d出的对话框中的“设备用法”一栏中选择“不要使用这个设备(停用)”后点击“确定”（或者在上一步右键菜单中选择停用）。这时系统会提示重新启动之后才能生效。

重启系统之后可以发现，恼人的Beep音已经一去不复返了。

另外还有如下几种方法:

1禁用“嘀嘀”声的设备来源

这是由beep驱动服务所提供，可以将beep驱动的启动类型设置为禁用,打开CMD窗口，运行以下命令：scconfigbeepstart=disabled

2停止beep驱动

可以运行以下命令：scstopbeep3注册表里面修改HKEY_CURRENT_USER/ControlPanel/SoundBeep：No

需用VB实现，代码如下

'定义蛇的运动速度枚举值

Private Enum tpsSpeed

QUICKLY = 0

SLOWLY = 1

End Enum

'定义蛇的运动方向枚举值

Private Enum tpsDirection

D_UP = 38

D_DOWN = 40

D_LEFT = 37

D_RIGHT = 39

End Enum

'定义运动区域4个禁区的枚举值

Private Enum tpsForbiddenZone

FZ_TOP = 30

FZ_BOTTOM = 5330

FZ_LEFT = 30

FZ_RIGHT = 5730

End Enum

'定义蛇头及身体初始化数枚举值

Private Enum tpsSnake

SNAKEONE = 1

SNAKETWO = 2

SNAKETHREE = 3

SNAKEFOUR = 4

End Enum

'定义蛇宽度的常量

Private Const SNAKEWIDTH As Integer = 100

'该过程用于显示游戏信息

Private Sub Form_Load()

MeShow

MelblTitle = "BS贪食蛇 — (版本 " & AppMajor & "" & AppMinor & "" & AppRevision & ")"

MeCaption = MelblTitleCaption

frmSplashShow 1

End Sub

'该过程用于使窗体恢复原始大小

Private Sub Form_Resize()

If MeWindowState <> 1 Then

MeCaption = ""

MeHeight = 6405 '窗体高度为 6405 缇

MeWidth = 8535 '窗体宽度为 8535 缇

MeLeft = (ScreenWidth - Width) \ 2

MeTop = (ScreenHeight - Height) \ 2

End If

End Sub

'该过程用于重新开始开始游戏

Private Sub cmdGameStart_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)

Beep

msg = MsgBox("您确认要重新开始游戏吗？", 4 + 32, "BS贪食蛇")

If msg = 6 Then Call m_subGameInitialize

End Sub

'该过程用于暂停/运行游戏

Private Sub chkPause_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)

If MechkPauseCaption = "暂停游戏(&P)" Then

MetmrSnakeMoveEnabled = False

MetmrGameTimeEnabled = False

MepicMoveAreaEnabled = False

MelblPauseLabVisible = True

MechkPauseCaption = "继续游戏(&R)"

Else

MetmrSnakeMoveEnabled = True

MetmrGameTimeEnabled = True

MepicMoveAreaEnabled = True

MelblPauseLabVisible = False

MechkPauseCaption = "暂停游戏(&P)"

End If

End Sub

'该过程用于显示游戏规则

Private Sub cmdGameRules_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)

Beep

MsgBox " BS贪食蛇：一个规则最简单的趣味游戏，您将用键盘" & Chr(13) & _

"上的4个方向键来控制蛇的运动方向。在运动过程中蛇" & Chr(13) & _

"不能后退，蛇的头部也不能接触到运动区域的边线以外" & Chr(13) & _

"和蛇自己的身体，否则就游戏失败。在吃掉随机出现的" & Chr(13) & _

"果子后，蛇的身体会变长，越长难度越大。祝您好运！！", 0 + 64, "游戏规则"

End Sub

'该过程用于显示游戏开发信息

Private Sub cmdAbout_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)

Beep

MsgBox "BS贪食蛇" & "(V-" & AppMajor & "" & AppMinor & "版本)" & Chr(13) & Chr(13) & _

"" & Chr(13) & Chr(13) & _

"由PigheadPrince设计制作" & Chr(13) & _

"CopyRight(C)2002,BestSoftTCG", 0, "关于本游戏"

End Sub

'该过程用于退出游戏

Private Sub cmdExit_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)

Beep

msg = MsgBox("您要退出本游戏吗？", 4 + 32, "BS贪食蛇")

Select Case msg

Case 6

End

Case 7

MechkWindowButton(2)Value = 0

Exit Sub

End Select

End Sub

'该过程用于拖动窗体_(点击图标)

Private Sub imgWindowTop_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)

ReleaseCapture

SendMessage Mehwnd, WM_SYSCOMMAND, SC_MOVE, 0

End Sub

'该共用过程用于处理窗体控制按钮组的相关 *** 作_(锁定、最小化、退出)

Private Sub chkWindowButton_MouseUp(Index As Integer, Button As Integer, Shift As Integer, X As Single, Y As Single)

If Button <> 1 Then Exit Sub

Select Case Index

Case 0 '锁定窗体

If MechkWindowButton(0)Value = 1 Then

MeimgWindowTopBorderStyle = 0

MeimgWindowTopEnabled = False

Else

MeimgWindowTopBorderStyle = 1

MeimgWindowTopEnabled = True

End If

Case 1 '最小化

MeWindowState = 1

MechkWindowButton(1)Value = 0

MeCaption = "BS贪食蛇 — (V-" & AppMajor & "" & AppMinor & "版本)"

Case 2 '退出

Beep

msg = MsgBox("您要退出本游戏吗？", 4 + 32, "BS贪食蛇")

Select Case msg

Case 6

End

Case 7

MechkWindowButton(2)Value = 0

Exit Sub

End Select

End Select

End Sub

'该过程用于设置蛇运动速度的快慢

Private Sub hsbGameSpeed_Change()

MetmrSnakeMoveInterval = MehsbGameSpeedValue

End Sub

'该过程用于通过键盘的方向键改变蛇的运动方向

Private Sub picMoveArea_KeyDown(KeyCode As Integer, Shift As Integer)

Select Case g_intDirection

Case D_UP

If KeyCode = D_DOWN Then Exit Sub

Case D_DOWN

If KeyCode = D_UP Then Exit Sub

Case D_LEFT

If KeyCode = D_RIGHT Then Exit Sub

Case D_RIGHT

If KeyCode = D_LEFT Then Exit Sub

End Select

g_intDirection = KeyCode

End Sub

'该计时循环过程用于计算游戏耗费的秒数并显示

Private Sub tmrGameTime_Timer()

g_lngGameTime = g_lngGameTime + 1

MelblGameTimeCaption = g_lngGameTime & "秒"

End Sub

'该计时循环过程用于控制蛇的行动轨迹

Private Sub tmrSnakeMove_Timer()

Dim lngSnakeX As Long, lngSnakeY As Long, lngSnakeColor As Long

Dim lngPointX As Long, lngPointY As Long, lngPointColor As Long

Randomize

MepicMoveAreaSetFocus

MepicMoveAreaCls

'确认蛇头的运动方向并获取新的位置

Select Case g_intDirection

Case D_UP '向上运动

g_udtSnake(SNAKEONE)Snake_CurX = g_udtSnake(SNAKEONE)Snake_OldX

g_udtSnake(SNAKEONE)Snake_CurY = g_udtSnake(SNAKEONE)Snake_OldY

g_udtSnake(SNAKEONE)Snake_CurY = g_udtSnake(SNAKEONE)Snake_CurY - SNAKEWIDTH

Case D_DOWN '向下运动

g_udtSnake(SNAKEONE)Snake_CurX = g_udtSnake(SNAKEONE)Snake_OldX

g_udtSnake(SNAKEONE)Snake_CurY = g_udtSnake(SNAKEONE)Snake_OldY

g_udtSnake(SNAKEONE)Snake_CurY = g_udtSnake(SNAKEONE)Snake_CurY + SNAKEWIDTH

Case D_LEFT '向左运动

g_udtSnake(SNAKEONE)Snake_CurX = g_udtSnake(SNAKEONE)Snake_OldX

g_udtSnake(SNAKEONE)Snake_CurX = g_udtSnake(SNAKEONE)Snake_CurX - SNAKEWIDTH

g_udtSnake(SNAKEONE)Snake_CurY = g_udtSnake(SNAKEONE)Snake_OldY

Case D_RIGHT '向右运动

g_udtSnake(SNAKEONE)Snake_CurX = g_udtSnake(SNAKEONE)Snake_OldX

g_udtSnake(SNAKEONE)Snake_CurX = g_udtSnake(SNAKEONE)Snake_CurX + SNAKEWIDTH

g_udtSnake(SNAKEONE)Snake_CurY = g_udtSnake(SNAKEONE)Snake_OldY

End Select

'根据新的位置绘制蛇头

lngSnakeX = g_udtSnake(SNAKEONE)Snake_CurX

lngSnakeY = g_udtSnake(SNAKEONE)Snake_CurY

lngSnakeColor = g_udtSnake(SNAKEONE)Snake_Color

MepicMoveAreaPSet (lngSnakeX, lngSnakeY), lngSnakeColor

'移动蛇身体其他部分的位置

For i = 2 To g_intSnakeLength

g_udtSnake(i)Snake_CurX = g_udtSnake(i - 1)Snake_OldX

g_udtSnake(i)Snake_CurY = g_udtSnake(i - 1)Snake_OldY

lngSnakeX = g_udtSnake(i)Snake_CurX

lngSnakeY = g_udtSnake(i)Snake_CurY

lngSnakeColor = g_udtSnake(i)Snake_Color

MepicMoveAreaPSet (lngSnakeX, lngSnakeY), lngSnakeColor

Next i

'更新蛇旧的坐标位置

For j = 1 To g_intSnakeLength

g_udtSnake(j)Snake_OldX = g_udtSnake(j)Snake_CurX

g_udtSnake(j)Snake_OldY = g_udtSnake(j)Snake_CurY

Next j

'判断蛇在移动中是否到了禁区而导致游戏失败

If m_funMoveForbiddenZone(g_udtSnake(SNAKEONE)Snake_CurX, g_udtSnake(SNAKEONE)Snake_CurY) Then

Beep

MsgBox "您的蛇移动到了禁区，游戏失败！", 0 + 16, "BS贪食蛇"

MetmrSnakeMoveEnabled = False

MetmrGameTimeEnabled = False

MepicMoveAreaVisible = False

Exit Sub

End If

'判断蛇在移动中是否碰到了自己的身体而导致游戏失败

If m_funTouchSnakeBody(g_udtSnake(SNAKEONE)Snake_CurX, g_udtSnake(SNAKEONE)Snake_CurY) Then

Beep

MsgBox "您的蛇在移动中碰到了自己的身体，游戏失败！", 0 + 16, "BS贪食蛇"

MetmrSnakeMoveEnabled = False

MetmrGameTimeEnabled = False

MepicMoveAreaVisible = False

Exit Sub

End If

'判断蛇是否吃到了果子

If m_funEatPoint(g_udtSnake(SNAKEONE)Snake_CurX, g_udtSnake(SNAKEONE)Snake_CurY) Then

'累加玩家的得分并刷新得分显示

g_intPlayerScore = g_intPlayerScore + 1

MelblYourScoreCaption = g_intPlayerScore & "分"

Call m_subAddSnake '加长蛇的身体

Call m_subGetPoint '获取下一个果子的位置和颜色

Else

'绘制果子

lngPointX = g_udtPointPoint_X

lngPointY = g_udtPointPoint_Y

lngPointColor = g_udtPointPoint_Color

MepicMoveAreaPSet (lngPointX, lngPointY), lngPointColor

End If

End Sub

'该私有子过程用于初始化游戏

Private Sub m_subGameInitialize()

Erase g_udtSnake '清空蛇的结构数组

g_intPlayerScore = 0 '清空玩家的得分

g_lngGameTime = 0 '清空游戏耗费的秒数

g_intDirection = D_DOWN '设定蛇的初始运动方向为下

g_intSnakeLength = 4 '设定蛇的初始长度

ReDim g_udtSnake(1 To g_intSnakeLength) '重新定义蛇的长度

'定义蛇头部的数据

With g_udtSnake(SNAKEONE)

Snake_OldX = 530

Snake_OldY = 530

Snake_Color = vbBlack

End With

'定义蛇身第2节的数据

With g_udtSnake(SNAKETWO)

Snake_OldX = 530

Snake_OldY = 430

Snake_Color = vbGreen

End With

'定义蛇身第3节的数据

With g_udtSnake(SNAKETHREE)

Snake_OldX = 530

Snake_OldY = 330

Snake_Color = vbYellow

End With

'定义蛇身第4节的数据

With g_udtSnake(SNAKEFOUR)

Snake_OldX = 530

Snake_OldY = 230

Snake_Color = vbRed

End With

MepicMoveAreaVisible = True

MelblYourScoreCaption = g_intPlayerScore & "分"

MelblGameTimeCaption = g_lngGameTime & "秒"

MetmrSnakeMoveInterval = MehsbGameSpeedValue

MetmrSnakeMoveEnabled = True

MetmrGameTimeEnabled = True

Call m_subGetPoint '获取第一个果子的位置和颜色

End Sub

接下面的

定时器Timer启动后每次经过 delay 毫秒后，该 Timer 将激发一个其侦听器的 *** 作事件，即执行listener里面的actionPerformed{}代码。默认情况下，调用 stop 方法之前此循环将重复进行。如果希望计时器只激发一次，则调用该计时器上的 setRepeats(false)。而在上面所写的代码中，程序执行tstart()之后紧接着就是跳出对话框的代码，这样的话对话框就会即刻跳出，如果要达到楼主所说的效果，把JOptionPaneshowMessageDialog(null,"quit pprogram"); 放到actionPerformed{}里面即可。当然后面得有个延迟主程序的代码，否则main将一下子执行到最后，直接结束，也就等不到timer计时器的触发事件了。（试试：源程序不变，仅仅在actionPerformed里面添加一行：JOptionPaneshowMessageDialog(null,"timer!");）

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