VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "VB6 例6-12 阿基米德螺線"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
    Private Sub Form_Click()
        Dim x As Single, y As Single, I As Single
        Scale (-15, 15)-(15, -15)
        Line (0, 14)-(0, -14)
        Line (14.5, 0)-(-14.5, 0)
        For I = 0 To 12 Step 0.01
            y = I * Sin(I)                          ' 阿基米德螺線參數方程
            x = I * Cos(I)                          ' 阿基米德螺線參數方程
            PSet (x, y)
        Next I
    End Sub