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vb.net画正弦波 绘制正弦波( 三 )

IT技术定义


Case 5
For a = -10 To 10 Step Pi / 6000
Dot = DrawDot(a, Cos(a), RGB(0, 0, 0))
Next a
wor = PrintWord(-9, 2, "余弦曲线 y=cos x")
Case 6
XY
End Select
End Sub
Private Sub Form_Load()
Me.Caption = "数学函数作图?quot;"
Me.Show
Me.AutoRedraw = True
Picture1.AutoRedraw = True
Command1(0).Caption = "二次曲线"
Command1(1).Caption = "一次曲线"
Command1(2).Caption = "指数曲线"
Command1(3).Caption = "对数曲线"
Command1(4).Caption = "正弦曲线"
Command1(5).Caption = "余弦曲线"
Command1(6).Caption = "清空"
XY
End Sub
Private Sub Form_Resize()
Picture1.Width = Me.Width * 0.94
Picture1.Height = Me.Height - (Command1(0).Height * 4 + 100)
Command1(0).Top = Me.Height - (Command1(0).Height * 2.5 + 100)
Command1(0).Left = Me.Width * 0.01
For i = 1 To 6
Command1(i).Top = Me.Height - (Command1(0).Height * 2.5 + 100)
Command1(i).Left = Command1(i - 1).Left + 1000
Next
XY
End Sub
怎么在VB.NET中画.wave文件的波形图代码原理如下：
读取.wave
播放.wave
在播放的同时根据波形数据生成图形显示出来 。
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