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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
& M4 I/ a1 C7 C0 W4 t
. q- t; Z0 v: W9 t<TR>
1 M% A, q* w+ r3 u, ]' P0 |<TD width=*>8 I o9 [7 M; {/ ^
< ><B>帮帮忙,跪下谢谢斑竹,VB</B></P> y4 R4 F, V+ I9 n; B' N- }
< > rivate Function PrintWord(x, Y, Word As String)
0 P+ h# s/ x& \( jWith Picture1
' \/ f" E( m9 y5 i* z.CurrentX = x! a: n2 P* m5 W/ R
.CurrentY = Y
& ]3 ]: k1 C6 d$ L% l6 g.ForeColor = RGB(0, 0, 255)8 K5 u/ b8 P+ T. }# \7 G0 i
End With
) V" E, S$ m% e7 EPicture1.Print Word
$ @$ W O5 e& U d0 j' SEnd Function0 ~, \, l8 a; V
'定义画点函数* J" l7 {( T! a7 L G6 J+ g0 L
Private Function DrawDot(Px, Py, Color); ^+ \& G3 `3 d* f
Picture1.PSet (Px, Py), Color
& d( Y0 }5 b# T3 B! M3 A4 Z nEnd Function
4 z4 d o# Y5 I+ n$ T+ {( VSub XY() '建立直角坐标系6 J2 p# b; Z0 F: o1 f& F
Picture1.DrawWidth = 1 '设置线条宽度
3 i9 v: w: Z0 jPicture1.Cls
" ]& s2 ?: U# d- f" j* P; I* g/ O'设定用户坐标系,坐标原点在Picture1中心# s3 \, }' e3 [ w' M% t% F
Picture1.Scale (-10, 10)-(10, -10)
% |) l, o p. x& Z7 z8 b8 n. y) {% FPicture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)" y2 P) _$ t& `+ K
Picture1.Line -(9.5, 0.5), RGB(0, 0, 255)& k+ K: z' U; t
Picture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)
! o! J [- c, `8 s* T3 OPicture1.ForeColor = RGB(0, 0, 255)
* H( x' F4 n) A- l. SPicture1.Print "X"
" K. e; ]( v2 _8 }'画 X 轴
6 \5 l3 B J8 O& d/ M8 x yPicture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
* |. w0 G* c, _4 v, F) bPicture1.Line -(0.5, 9.5), RGB(0, 0, 255)
8 g: y& ~1 V0 c' T) T" N1 gPicture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)
1 X3 C! ]% c |& yPicture1.Print "Y"5 a4 d2 V) W" ?6 k# A6 v
'画 Y 轴1 r3 S9 Z+ `$ p2 e0 V
For lin = -9 To 95 r u0 b. F9 }. q& H, o# Z
Picture1.Line (lin, 0)-(lin, 0.25)
' \) d) p( v! o1 _% o! f3 h& cwor = PrintWord(lin - 0.5, -0.5, Str(lin))0 Z8 _7 u L, L+ D" k
Picture1.Line (0, lin)-(-0.25, lin)/ }( N- R8 p" A9 s. \( E
If lin <> 0 Then
3 Z: L* Z z. M, N9 ~- n2 lwor = PrintWord(-0.9, lin, Str(lin))9 R/ ?; Q d0 i
End If
" n5 \1 Y* ?# E* xNext lin
( }5 _2 x8 y) K: x$ \Picture1.DrawWidth = 1
1 a' D9 P" o: T6 ~' Q& F6 c7 e% y& r; MEnd Sub
* {; b) P, n, c# H5 O) ]Private Sub cmdPlot_Click()* u$ F/ K! v1 V8 b8 @. n& ^
XY+ g8 S9 l. a9 \$ O5 F
On Error Resume Next1 T$ `7 O! U1 }4 @" Z: P$ l6 N2 A
Dim x As Double, Y As Double
7 c3 \' f1 l3 y2 h- K! _Randomize" y6 C) L" i9 P, V/ E$ M; O. }
/ G# k' x% v2 X) X$ W2 c U
SC.Reset
6 h4 L5 S( w* G+ a( Y+ q9 ^ SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function"5 b5 n, h/ W' I7 H0 M4 S! [% e
For x = -15 To 15 Step 0.001
% _( o v4 o: u+ `1 S% l( I& z. z! J Y = SC.Run("runthis", x)9 H9 u* l6 L+ D
DoEvents! a, p- I5 ^- L' u1 d1 g
Picture1.PSet (x, Y), RGB(250, 0, 0)1 a* N3 @* `# M2 } z# F7 Q- `8 U |
Next x
& e( o9 n' D5 e7 xEnd Sub</P>
7 I- v! M) W: |8 |< > rivate Sub Command2_Click()
4 i |( }' R, V2 ^& kXY
* O# q# e5 }3 z6 V" [End Sub</P>3 {" K6 o& |2 f8 h; j \% A
< > rivate Sub Command3_Click()7 x2 Q; b4 t* O! J9 T
End
/ z6 Z" t* V" h1 z5 @+ ~& @' t# eEnd Sub</P>. ~0 w8 ]) E0 g4 q4 o
< >2 H, K# @! C- z- F
Private Sub Form_Load()
6 t) u% r4 x7 h. A$ w8 r' W9 @Me.Caption = "美丽曲线——数学爱好者"
: E% c) y# b! ]Me.Show( p" z+ B3 G2 P8 B9 }) e
Me.AutoRedraw = True
% p+ |. I$ W* b; U( |$ q8 i+ ?XY
6 c+ {1 c- `- WEnd Sub
% S0 E" P }% C5 H</P></TD>
m# g. g' w8 a7 h<TD align=right width=60></TD></TR></TABLE>
) C% \8 `9 x( N& Z* ]# ]8 t; A< >为仕么Y=LOG(X),SQR(X)也有图象(X轴负半轴),sc为ms.script.control控件请帮忙,<B>跪下谢谢斑竹</B></P>% C5 q% I, U9 `
[此贴子已经被作者于2005-3-4 17:40:39编辑过] |
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