如题,txt文件的数据是一个周期的sin函数,数据格式如下:
0 0
.01 9.999833E-03
.02 1.999867E-02
.03 .0299955
.04 3.998933E-02
.05 4.997917E-02
5.999999E-02 .059964
6.999999E-02 6.994284E-02
7.999999E-02 7.991468E-02
8.999999E-02 8.987854E-02
9.999999E-02 9.983341E-02
.11 .1097783
.12 .1197122
.13 .1296341
......
谢谢各位高手相助
0 0
.01 9.999833E-03
.02 1.999867E-02
.03 .0299955
.04 3.998933E-02
.05 4.997917E-02
5.999999E-02 .059964
6.999999E-02 6.994284E-02
7.999999E-02 7.991468E-02
8.999999E-02 8.987854E-02
9.999999E-02 9.983341E-02
.11 .1097783
.12 .1197122
.13 .1296341
......
谢谢各位高手相助
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Const Ratio = 1
Const Offset = 1Private Type TPoint
x As Double
y As Double
End TypePrivate Sub Command1_Click()
Picture1.ScaleMode = 7
Dim s As String, p() As TPoint, N As Integer
Dim arrS() As String
Open "d:\tddownload\data.txt" For Input As #1
Do While Not EOF(1)
Line Input #1, s
ReDim Preserve p(N)
arrS = Split(Trim(s), " ")
With p(N)
.x = Val(arrS(0))
.y = Val(arrS(UBound(arrS)))
End With
N = N + 1
Loop
Close #1
DrawCurve Picture1, p
End SubPrivate Sub DrawCurve(pic As PictureBox, p() As TPoint)
If UBound(p) < 1 Then MsgBox "数据不足": Exit Sub
pic.Line (Ratio * p(0).x, Ratio * p(0).y + Offset)-(Ratio * p(1).x, Ratio * p(1).y + Offset), vbCyan
Dim i As Integer
For i = 2 To UBound(p)
pic.Line -(Ratio * p(i).x, Ratio * p(i).y + Offset), vbCyan
Next i
End Sub