vb.net - VB.net循环mp3直到选择下一个IF

嘿，我有以下代码:

Dim totalDistance as Boolean = False

    If totalDistance <= 210 Then
        'red
        If isPlaying = False Then
            isPlaying = True
            WMP.URL = Application.StartupPath + "\red.mp3"
            WMP.controls.stop()
            WMP.controls.play()
            WMP.settings.setMode("loop", True)
        End If

        backupLineRED.Visible = True
        backupLineYELLOW.Visible = False
        backupLineGREEN.Visible = False
    ElseIf totalDistance > 210 And totalDistance <= 670 Then
        'yellow
        WMP.URL = Application.StartupPath + "\yellow.mp3"
        WMP.controls.play()
        backupLineRED.Visible = True
        backupLineYELLOW.Visible = True
        backupLineGREEN.Visible = False
    ElseIf totalDistance > 671 And totalDistance <= 1000 Then
        'green
        WMP.URL = Application.StartupPath + "\green.mp3"
        WMP.controls.play()
        backupLineRED.Visible = True
        backupLineYELLOW.Visible = True
        backupLineGREEN.Visible = True
    End If

我想循环播放声音，直到到达下一个IF语句为止。但是我想不出一种方法来正确检查它，因为 isPlaying 将始终保持为真，并且当它进入另一个IF语句时，我需要找到一种将其设置为false的方法。

任何帮助将是巨大的!谢谢!

最佳答案

知道...也许这将满足您的需求:

    If totalDistance <= 210 Then
        'red
        If WMP.URL <> Application.StartupPath + "\red.mp3" Then
            WMP.URL = Application.StartupPath + "\red.mp3"
            WMP.controls.stop()
            WMP.controls.play()
            WMP.settings.setMode("loop", True)
        End If

        backupLineRED.Visible = True
        backupLineYELLOW.Visible = False
        backupLineGREEN.Visible = False
    ElseIf totalDistance > 210 And totalDistance <= 670 Then
        'yellow
        If WMP.URL <> Application.StartupPath + "\yellow.mp3" Then
            WMP.URL = Application.StartupPath + "\yellow.mp3"
            WMP.controls.stop()
            WMP.controls.play()
            WMP.settings.setMode("loop", True)
        End If

        backupLineRED.Visible = True
        backupLineYELLOW.Visible = True
        backupLineGREEN.Visible = False
    ElseIf totalDistance > 671 And totalDistance <= 1000 Then
        'green
        If WMP.URL <> Application.StartupPath + "\green.mp3" Then
            WMP.URL = Application.StartupPath + "\green.mp3"
            WMP.controls.stop()
            WMP.controls.play()
            WMP.settings.setMode("loop", True)
        End If

        backupLineRED.Visible = True
        backupLineYELLOW.Visible = True
        backupLineGREEN.Visible = True
    End If