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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>2 K( I2 ~2 o) g$ x
+ t' P( ], T4 Z9 t* ?' P+ M7 E<TR>. A7 c) ?6 L$ Z$ r4 P3 F* Y* ~# q
<TD width=*>. r4 _% \7 Y2 Q" I
< ><B>帮帮忙,跪下谢谢斑竹,VB</B></P>3 W3 v1 s7 K# }* ]% e5 z- J" \. x* r
< > rivate Function PrintWord(x, Y, Word As String)* C( d% _& A( l3 }
With Picture1" w5 ~) Q. f0 s7 b
.CurrentX = x4 l1 n- B& C4 {1 E& Z z# n
.CurrentY = Y
( S% i2 ~/ v. ^4 x8 ]3 C r.ForeColor = RGB(0, 0, 255)
5 ?8 B/ i: Y5 vEnd With( N. q) z* p% ?' O4 W
Picture1.Print Word
& A1 ^+ y; h2 x4 s. `& p+ rEnd Function+ ~1 X2 s7 E% ^" x1 I. e' F+ c
'定义画点函数/ o: N; s& Z7 s6 J M; q6 ^+ A
Private Function DrawDot(Px, Py, Color)
$ w$ n- D0 h7 OPicture1.PSet (Px, Py), Color7 a5 y6 H5 h2 u/ \% g
End Function
& x1 N2 @$ `9 ?. p) `Sub XY() '建立直角坐标系
9 S/ b1 b; C8 aPicture1.DrawWidth = 1 '设置线条宽度+ ~; s" K7 @1 u0 s
Picture1.Cls
& z2 I# I+ O' t6 q+ j'设定用户坐标系,坐标原点在Picture1中心8 y" k% }- r' U1 z" b+ H
Picture1.Scale (-10, 10)-(10, -10)
! x9 n9 @# o( F6 q LPicture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
[" H! R, w6 {+ h4 s" qPicture1.Line -(9.5, 0.5), RGB(0, 0, 255)' S& k' r+ {/ g
Picture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)- w _4 d1 S: f4 ]( o& z5 p
Picture1.ForeColor = RGB(0, 0, 255)
' i8 h% I v- |4 y5 V: L: X9 CPicture1.Print "X"8 _% M/ \' k1 l" Q
'画 X 轴
1 g. k+ f# T8 |0 qPicture1.Line (0, -10)-(0, 10), RGB(0, 0, 255) A2 N7 w' E4 s t
Picture1.Line -(0.5, 9.5), RGB(0, 0, 255)3 T$ n# }/ d& |$ I
Picture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)
4 Y% U% M5 K5 m& m+ c( }/ t8 mPicture1.Print "Y"
4 u+ C! u+ h6 K/ J! b6 H'画 Y 轴
8 t4 N: p, M/ f: {For lin = -9 To 9
+ `9 C7 \: ^; `3 p- c, C7 d* K# iPicture1.Line (lin, 0)-(lin, 0.25)* |/ @3 X- z% p+ P% U$ Z, d& @
wor = PrintWord(lin - 0.5, -0.5, Str(lin))
" i. }9 {; Y4 P; S1 S. C2 y8 wPicture1.Line (0, lin)-(-0.25, lin)
: h( g, Q5 r: x u% ?. qIf lin <> 0 Then' q* n4 L3 m& s# `% U7 x) h
wor = PrintWord(-0.9, lin, Str(lin))
2 D4 Y( d! i3 k& Z4 B" j8 EEnd If6 O$ ~4 x2 ^* z. B5 P2 Q/ Y
Next lin
$ C: ~3 ^# p! C) o6 GPicture1.DrawWidth = 19 i; r( p4 p, @* J
End Sub) ]- R9 R9 P- W' w4 V
Private Sub cmdPlot_Click()6 R2 D! c8 f3 g; a$ W; V# I
XY
. H( Q/ P n0 o9 T. F/ LOn Error Resume Next
. Z! t" c& F) w4 H, q LDim x As Double, Y As Double
# V9 X1 \; Y9 M1 Y6 T! U" gRandomize5 q/ b {! F! a
9 n A" u# k0 t' J7 a
SC.Reset
- A/ f |0 ?* n J! e SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function"
& h) i0 v8 g) t& M; Q0 n4 x6 s For x = -15 To 15 Step 0.0011 P/ J5 O% G8 s5 r, n D
Y = SC.Run("runthis", x)
9 o. P5 x3 M3 N1 q4 U- a DoEvents; L) D$ u8 i9 b0 X1 i- d
Picture1.PSet (x, Y), RGB(250, 0, 0)" H6 Q$ O- K7 A( V6 g
Next x0 x; { W0 @- s$ W0 ^& G0 V
End Sub</P>
0 b3 W: H3 y0 x/ t |, T< > rivate Sub Command2_Click()3 B8 P6 n I+ S
XY
2 |2 \. l1 G. B$ f6 k7 {End Sub</P>7 [- }. W. [& g. G" f
< > rivate Sub Command3_Click()1 ~: _- [- S% `1 `
End! y# i8 N( ^1 t9 h' E' K2 W
End Sub</P>. z% i) l- k0 s b9 ]9 y
< >
7 @0 s1 _# z- y1 S: _3 f9 \& ZPrivate Sub Form_Load()
' A& ^% [$ H L, F/ B2 n8 eMe.Caption = "美丽曲线——数学爱好者"" q( x k% u+ I& g/ R6 S
Me.Show
# ~9 T. R7 e' n" m8 s7 GMe.AutoRedraw = True: F6 j2 d4 e/ R2 H% ~
XY
+ `" i6 ?- E; k4 e+ h: UEnd Sub
+ }7 z% ?+ Y! i! }1 v O; O</P></TD>
0 `$ I0 h7 f/ p; C& w3 ?8 U<TD align=right width=60></TD></TR></TABLE>, m' [/ Q" r0 K7 P) O
< >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>: V. j# C, ^, c
[此贴子已经被作者于2005-3-4 17:40:39编辑过] |
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