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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>- s O8 t! @! t2 L( n. ^* x1 c
# B' L* T0 {5 F* m7 v
<TR>
& C2 n' Q/ ~" n8 `; C' s<TD width=*>- G. m) u& M* [& y
< ><B>帮帮忙,跪下谢谢斑竹,VB</B></P>
( n' u3 k7 c* z0 Q3 x$ @# ? x+ P< > rivate Function PrintWord(x, Y, Word As String)
. d( L1 u3 v& m2 a @, t; [With Picture1
/ [% D; p, q' D.CurrentX = x
x- k8 M& F; |" [4 N0 V+ F.CurrentY = Y
3 x8 V" [) K K, ?. I.ForeColor = RGB(0, 0, 255)
; k2 `& a2 t0 |) nEnd With
1 D6 }- V8 ^/ ?" MPicture1.Print Word* _3 S' a5 V3 v/ e
End Function+ S' x& T/ z. ~
'定义画点函数/ B- i }" W0 j1 u) _
Private Function DrawDot(Px, Py, Color)
7 h7 ]' ?3 q2 lPicture1.PSet (Px, Py), Color
$ g, N, L* J [: h4 I( V3 }: nEnd Function
/ F4 t/ T2 ?- RSub XY() '建立直角坐标系9 B- q5 {: m% |/ ~, v/ {6 C" ~, E+ |
Picture1.DrawWidth = 1 '设置线条宽度
2 Z6 D4 t; M6 D* }4 m# m3 U+ O, UPicture1.Cls+ ] F1 j$ z+ Q( n
'设定用户坐标系,坐标原点在Picture1中心
; v" L2 ?6 {* L- H! E+ JPicture1.Scale (-10, 10)-(10, -10)* `* X7 P1 K5 [. C" W
Picture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
& W3 |4 `6 A% S, p' OPicture1.Line -(9.5, 0.5), RGB(0, 0, 255)# x/ Q2 y- l2 _5 g
Picture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)# \! Z! g$ K! C6 J2 M8 Y
Picture1.ForeColor = RGB(0, 0, 255)# i1 c g- }) m1 D" w! r3 B
Picture1.Print "X"4 S R. w# ?. o* o B. X- f3 q. [
'画 X 轴
' v- {8 A2 [8 K V: d* M& J5 @* \Picture1.Line (0, -10)-(0, 10), RGB(0, 0, 255), L0 y4 J: v# h& J0 i/ h% M
Picture1.Line -(0.5, 9.5), RGB(0, 0, 255): \$ ~7 H+ q8 }, b" r5 s: ]& Q
Picture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)8 X& b! E( K4 `! y- _" r
Picture1.Print "Y"/ H/ Y1 R$ ^* [ K7 p* H
'画 Y 轴
1 U# }+ i- l z1 ]$ |For lin = -9 To 9
; k) g+ k0 o w. Y8 Q) |Picture1.Line (lin, 0)-(lin, 0.25)
/ y6 U9 V, p+ Dwor = PrintWord(lin - 0.5, -0.5, Str(lin))
?: a1 J* [7 A3 O9 FPicture1.Line (0, lin)-(-0.25, lin)
6 ^, j( [4 e4 f( M; `If lin <> 0 Then
! j3 H& g8 g2 _0 {4 G* lwor = PrintWord(-0.9, lin, Str(lin))$ S- |: d. k" b* `" q3 r j
End If
/ n- w# ]5 b& M4 GNext lin+ f; A1 \' o* u( }+ z$ Q$ D* J
Picture1.DrawWidth = 1
2 I) y: c: f3 S3 ]End Sub! N- U% ^& m, `
Private Sub cmdPlot_Click()2 x8 M% r0 J5 d6 R
XY& U& G8 I( ]2 Y" \
On Error Resume Next
5 h4 g3 P$ L0 s# DDim x As Double, Y As Double- t; ? b, S5 h( c, K2 w3 I
Randomize
" f9 q8 N, h% ~% K6 b : V/ V) h) f8 H' w) W$ Y
SC.Reset
3 x6 w. S& }1 a+ R4 ~ SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function"( m& B4 y4 ?% U: a: ]
For x = -15 To 15 Step 0.001! V, m, i) M7 G" i
Y = SC.Run("runthis", x), y: [' @- f% y" G* W2 }7 T
DoEvents8 B1 d* }" J9 [' a+ u: C* x
Picture1.PSet (x, Y), RGB(250, 0, 0)
/ A) y% Z* U" ^( g, u Next x
9 z. I c/ @' eEnd Sub</P>/ P1 h/ [8 n! U2 e
< > rivate Sub Command2_Click()6 Q) y6 L+ j5 S3 p4 A' u
XY* H8 Z7 Z( ?& K5 x/ k9 l' r$ ^
End Sub</P>4 o6 o/ E8 p; t/ r8 Z: i( z: Q
< > rivate Sub Command3_Click()* h7 w6 g8 s L/ Y# R3 v4 ]& p
End
2 r/ \4 K5 I5 B( Z2 QEnd Sub</P>9 X6 n" p' B- s& N/ t
< >8 g2 ]! }/ M {
Private Sub Form_Load()
) _# B5 v+ f( R# L2 Y2 wMe.Caption = "美丽曲线——数学爱好者". z# G" J+ {2 b& u% Q' F* c
Me.Show. l& ^- m$ Z* o& o% t R
Me.AutoRedraw = True0 b7 J+ c8 b! W+ A; z& D
XY3 }: C& ~3 r8 @6 w% C4 [+ A3 t
End Sub" j& |! c% W5 |9 U
</P></TD>
) u7 D% } S% r<TD align=right width=60></TD></TR></TABLE>
$ k3 X' }& W" U- `( X< >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>5 h9 }: q& V! `/ |& L- W' }
[此贴子已经被作者于2005-3-4 17:40:39编辑过] |
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