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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
3 g' V$ z4 X/ p5 `- M
% v* g+ d2 |. y1 Q# z<TR> ]; y. u0 L$ ]2 W" Y; ^7 U k8 m) t
<TD width=*>2 Z" b- j! K) [1 R2 y
< ><B>帮帮忙,跪下谢谢斑竹,VB</B></P>
^* s9 ?5 a. T; ?< > rivate Function PrintWord(x, Y, Word As String)
1 [# P% n+ L/ l8 u5 ]With Picture1. j* w: D" b: R y0 E
.CurrentX = x
0 o* q8 y6 j+ i4 y: d3 O.CurrentY = Y; d( _+ n* p" o$ k y& I# e8 b
.ForeColor = RGB(0, 0, 255)
8 J" L* f9 [8 h+ d3 I+ VEnd With* \% ? k5 v) Q- n
Picture1.Print Word j2 F3 X7 \2 V7 k. L7 b
End Function7 X4 ?2 T. \+ e+ [ w2 f
'定义画点函数
. K) n, G0 [# s9 q2 aPrivate Function DrawDot(Px, Py, Color)
. a4 B( d# v: o: ]Picture1.PSet (Px, Py), Color2 Q! N. p5 r) O- e' g5 k. K7 J
End Function* @0 {, a9 K7 d' L' V" j' E
Sub XY() '建立直角坐标系$ |! W+ C6 o0 M$ B( r6 n
Picture1.DrawWidth = 1 '设置线条宽度" a% \( n8 I/ A: M5 O
Picture1.Cls
5 X, U3 H1 J0 S8 |$ q2 z n'设定用户坐标系,坐标原点在Picture1中心
6 g* X; Y4 f- w/ L* F& g- jPicture1.Scale (-10, 10)-(10, -10). U. [: F% ]6 z9 S
Picture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
8 v }4 g& N. }1 N$ C: aPicture1.Line -(9.5, 0.5), RGB(0, 0, 255)
! E* Y) a& n* Y9 E7 z3 [Picture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)
/ K/ N% p$ }9 g; l3 }& SPicture1.ForeColor = RGB(0, 0, 255)# q/ _/ O- c) \ g8 r' n4 t" e2 L) O% {
Picture1.Print "X"
2 Z7 K! \1 E, z5 S'画 X 轴
/ C% I2 i! r1 G! c8 ^Picture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
6 j- }9 U* O6 A& ], @& `Picture1.Line -(0.5, 9.5), RGB(0, 0, 255)8 }/ c% N1 p9 N1 p9 T) ^1 N
Picture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255) G5 Z1 ]8 f! c5 G( D9 h( N# z
Picture1.Print "Y"1 }( o0 r- t" }
'画 Y 轴
7 g% d9 d* u. _" s. d3 X2 YFor lin = -9 To 98 J+ J$ f `% y- F& h$ J' K
Picture1.Line (lin, 0)-(lin, 0.25)
0 T( l3 i6 ~! w- Q$ E! [; A; Qwor = PrintWord(lin - 0.5, -0.5, Str(lin))
# F4 Q$ m! {7 z0 \9 JPicture1.Line (0, lin)-(-0.25, lin)
% u+ c2 y# k+ d/ t/ zIf lin <> 0 Then
7 \9 G& n# q% U( {7 ]/ A7 nwor = PrintWord(-0.9, lin, Str(lin))
! W+ L k( J% V4 {6 C5 A& I8 yEnd If+ j p0 K$ `: O% }! @ A) s
Next lin5 z; D! g5 K7 `4 @ r6 A
Picture1.DrawWidth = 1
$ s; W( d+ _5 G( YEnd Sub
# V, A$ G5 b, E& o# DPrivate Sub cmdPlot_Click()5 V0 a0 K+ Y+ ^1 ?. N) C6 H7 m
XY
! |7 c& G8 X O; p: }On Error Resume Next
9 v2 q7 d4 i4 H# o( wDim x As Double, Y As Double4 w U5 V0 s) T; i5 X0 w1 A2 J: G
Randomize" i, E' K% B# H, y2 i, x( ~( Y
' N d2 x- ~5 ]
SC.Reset/ u% L: Z. c7 O7 K, _
SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function"& H. q; }2 F- ~
For x = -15 To 15 Step 0.0013 o7 [# e; b7 k3 P7 ]9 Y
Y = SC.Run("runthis", x)
( Z' a! i/ \( r/ A, K DoEvents/ l* S# f3 E% y$ W, s. T
Picture1.PSet (x, Y), RGB(250, 0, 0)0 I( a/ ~. F8 H- I
Next x! w; \+ X6 A+ {7 X/ U# v
End Sub</P>
5 P+ D! [7 u: K6 b2 ~% T8 h< > rivate Sub Command2_Click()
' \0 a+ |4 b: A( e. a! ?1 h6 XXY
! l5 h3 W" T0 X2 y" E7 q( T0 gEnd Sub</P>- N1 }0 [4 Z5 |- h9 [3 t
< > rivate Sub Command3_Click()
$ G4 B( [. B0 L' mEnd, a4 h7 H$ U* F
End Sub</P>
- f! L( C1 P! m9 R< >+ e& F& Q: ?: a
Private Sub Form_Load()% {- s1 A( g' | M
Me.Caption = "美丽曲线——数学爱好者"
; L6 E+ Q7 j) ~2 `" _( uMe.Show+ |$ i" X6 j9 S3 V
Me.AutoRedraw = True
3 h* [& s: e. H/ h: `" W# TXY
D7 H$ G' `+ L. Q6 uEnd Sub0 I2 f6 j1 e' g* ~+ _
</P></TD>; H j1 D* c+ [; N4 N2 F+ _
<TD align=right width=60></TD></TR></TABLE>0 c8 @; m/ p7 `( t
< >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>$ N: S! `# X" k( d/ |
[此贴子已经被作者于2005-3-4 17:40:39编辑过] |
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