Vb.net FileNotFoundException My.Computer.Audio.Play上出现异常

我正在制作一个录音节目

代码：

第

My.Computer.Audio.Play（“c:\mic.wav”，AudioPlayMode.Background）”行出现错误
：

未处理FileNotFoundException
请确保指定位置存在声音文件

这对我很管用试试看

Public Class Form1

Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal uReturnLength As Integer, ByVal hwndCallback As Integer) As Integer

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

    Button1.Enabled = False

    Button2.Enabled = True

    mciSendString("open new Type waveaudio Alias recsound", "", 0, 0)

    mciSendString("record recsound", "", 0, 0)

    Label1.Text = "Recording..."

    Label1.Visible = True

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

    Button1.Enabled = True

    Button2.Enabled = False

    Button3.Enabled = True

    mciSendString("save recsound c:\recsound.wav", "", 0, 0)

    mciSendString("close recsound", "", 0, 0)

    MsgBox("File Created: C:\recsound.wav")

    Label1.Text = "Stopped..."

    Label1.Visible = False

    My.Computer.Audio.Stop()

End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

    Label1.Text = "Playing..."

    Label1.Visible = True

    My.Computer.Audio.Play("c:\recsound.wav", AudioPlayMode.Background)

End Sub

End Class

这个文件是否存在于C:\mic.wavNo，正如我在互联网上读到的，因为该代码自动创建mic.wav，然后播放它。这是上个世纪的代码。同样，C:\目录受UAC保护。因此，Button2将不起作用，您无法找到，因为您忽略了mciSendString（）的返回值。因此，按钮3注定要失败。选择更好的目录和a，并添加所需的错误报告。
Public Class Form1

Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal uReturnLength As Integer, ByVal hwndCallback As Integer) As Integer

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

    Button1.Enabled = False

    Button2.Enabled = True

    mciSendString("open new Type waveaudio Alias recsound", "", 0, 0)

    mciSendString("record recsound", "", 0, 0)

    Label1.Text = "Recording..."

    Label1.Visible = True

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

    Button1.Enabled = True

    Button2.Enabled = False

    Button3.Enabled = True

    mciSendString("save recsound c:\recsound.wav", "", 0, 0)

    mciSendString("close recsound", "", 0, 0)

    MsgBox("File Created: C:\recsound.wav")

    Label1.Text = "Stopped..."

    Label1.Visible = False

    My.Computer.Audio.Stop()

End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

    Label1.Text = "Playing..."

    Label1.Visible = True

    My.Computer.Audio.Play("c:\recsound.wav", AudioPlayMode.Background)

End Sub

End Class