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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
- H- f* O' I3 n- k1 O+ U" n; b4 a5 k& ~
<TR>" n4 z& S! r- D- K
<TD width=*>
5 C i: q! u+ p0 B# s< ><B>帮帮忙,跪下谢谢斑竹,VB</B></P>3 K8 e7 E; x" D
< > rivate Function PrintWord(x, Y, Word As String)
' n& r# e. f+ FWith Picture1
7 ~% P$ |- o7 h4 T8 r: _1 Y. L.CurrentX = x0 Q7 j6 j* i: u. q
.CurrentY = Y
0 L9 g E \- o+ x9 a% b( B.ForeColor = RGB(0, 0, 255)$ S7 R. S; K' {+ B, f# w
End With
: L9 n" A3 a; m4 `Picture1.Print Word3 Y5 c% T3 W) m% Z, z; i
End Function: o# ]# [$ D. I: k
'定义画点函数6 p/ w3 ]0 o$ j- I; D8 Q3 ?2 E
Private Function DrawDot(Px, Py, Color)
- d6 A* n/ w* X" l7 s' {Picture1.PSet (Px, Py), Color
. J g7 m8 l, KEnd Function
; r( S7 E8 o. A0 i5 P: B& F4 ^% eSub XY() '建立直角坐标系
3 E2 F( P& F* J, E; e7 EPicture1.DrawWidth = 1 '设置线条宽度
5 y: Z" X6 V3 w& o6 [Picture1.Cls9 R* G6 w/ d1 n7 f: O: Q
'设定用户坐标系,坐标原点在Picture1中心) l, k W1 O, d) `# n
Picture1.Scale (-10, 10)-(10, -10)
4 I d+ h# `1 i" ]' b9 }Picture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)/ U' B- q, F2 V
Picture1.Line -(9.5, 0.5), RGB(0, 0, 255)
3 h7 L* ?, {. H, [' f/ Y6 L' M2 mPicture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)! s" N `) j/ I, l
Picture1.ForeColor = RGB(0, 0, 255)
: a; B" H: E* T8 ?Picture1.Print "X"; m9 w) C j' Q- R- L
'画 X 轴$ |6 w0 t( A% ]* G
Picture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
$ B% f7 ?8 u& y% u+ u: ^! D; S- yPicture1.Line -(0.5, 9.5), RGB(0, 0, 255)
$ r' z9 P) ?3 YPicture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)
0 V9 [$ q! Z+ M+ sPicture1.Print "Y"/ J! H+ B& l, I& t% {- V. {
'画 Y 轴
% D& k5 Q3 B/ m. r: v( s0 P1 Z: sFor lin = -9 To 9. x6 ~. a. _8 L! q
Picture1.Line (lin, 0)-(lin, 0.25)* W( G8 d/ A, P" Z9 f
wor = PrintWord(lin - 0.5, -0.5, Str(lin))" n- f0 T3 V: O* ]9 x6 s; p1 d
Picture1.Line (0, lin)-(-0.25, lin)
0 P* E P/ e% J" f" }If lin <> 0 Then
. ]8 N4 C% |6 e+ W; L* c1 zwor = PrintWord(-0.9, lin, Str(lin))- e. i% C4 J3 R/ w
End If+ E2 w! u4 n- X
Next lin
4 V( k5 C: W7 ~# G; w/ TPicture1.DrawWidth = 1- v; u# {6 s$ f* \& Y
End Sub' C J: w. n2 R& d
Private Sub cmdPlot_Click()" | f; V' x+ m- n! ?6 `
XY0 u } S0 O, m! |
On Error Resume Next
, b: |3 L: o" F2 WDim x As Double, Y As Double
' n) Z i _$ O2 ^ C3 i) XRandomize
7 @3 m6 l( Y! W$ }5 z4 O4 b 4 u% x/ F3 }7 y6 h+ X5 m
SC.Reset* B( d5 n) y+ B# I2 ^
SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function"3 X% B8 f3 O& I, ]# i- F) v; d% i3 i
For x = -15 To 15 Step 0.001
1 f8 v# G, d9 W: A. s& U4 i3 J. Z Y = SC.Run("runthis", x)
! Q/ z8 ]2 o& c" ~5 y DoEvents
: \9 L {9 K0 o$ C9 Z4 q Picture1.PSet (x, Y), RGB(250, 0, 0)
" j1 @; k8 y/ p S# ~- o3 N Next x
$ w: _$ U/ k3 V$ m5 N' q- c: t1 jEnd Sub</P>( M% V9 B: W- j. j: Q
< > rivate Sub Command2_Click()
! t$ a, [4 v6 I! x3 D3 cXY
4 v$ W5 C- c( E }+ D: BEnd Sub</P>% J4 p- R& G3 n* i" X
< > rivate Sub Command3_Click()8 U; d, T3 Y2 h* ~; }: d8 _
End$ n* q4 l& H% S. s7 Z
End Sub</P>7 i2 u( R% A9 T; V
< >+ T/ g& _: ~2 S5 O6 r* z( i+ u
Private Sub Form_Load()2 ~2 H7 Q8 j; U8 }3 z! f. U. B" y
Me.Caption = "美丽曲线——数学爱好者"5 v2 O) `6 Z) W7 E# Q
Me.Show
* B+ o3 H7 N( \ g4 zMe.AutoRedraw = True0 P; y+ [; F, V* k
XY r" H. ^" j$ f$ x
End Sub
1 n0 @9 ~7 e4 X/ t% g4 ?" [; G</P></TD>
# z4 E7 H0 _4 H5 t, A% J7 V/ r<TD align=right width=60></TD></TR></TABLE>
0 h& O$ `; g' p; B3 R7 ^< >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>+ _ L* g4 u9 N6 `: I$ N
[此贴子已经被作者于2005-3-4 17:40:39编辑过] |
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