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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>* z% S6 q( l2 g J9 Q
0 J8 c5 _; d- J- ], B+ ?# Y
<TR>3 c7 ^7 X H4 |& f" L7 {0 f1 I
<TD width=*>
* z- h: W! Q+ a8 K* Y* c< ><B>帮帮忙,跪下谢谢斑竹,VB</B></P>: l3 N9 e( @ V @; q' i, S
< > rivate Function PrintWord(x, Y, Word As String)
G, j7 l, N- {0 y3 E S- d1 iWith Picture13 z1 }/ p4 \/ B& p) m) P# Y/ M
.CurrentX = x
0 ~) L. {( Y; N9 R5 p/ ^.CurrentY = Y
; Z* f; E4 @1 L0 e) \2 z.ForeColor = RGB(0, 0, 255)5 Q! V7 z% `7 c
End With
" H6 ~) w: N4 R6 U# Q! GPicture1.Print Word4 E9 r3 t" [+ N+ ]; i
End Function) t/ M/ B; T: }: v
'定义画点函数9 `$ z6 W" @3 q$ p! i
Private Function DrawDot(Px, Py, Color)# g% \1 m$ D( ?$ e( g2 ?
Picture1.PSet (Px, Py), Color
' s3 D# u% @# F3 }5 K- sEnd Function
% \9 }; V; X5 ]; ^) h, H* ]Sub XY() '建立直角坐标系2 Y* x+ L) w* E) _
Picture1.DrawWidth = 1 '设置线条宽度5 L) f; l' E6 L; k; q
Picture1.Cls
- T/ {# C. x9 N3 b'设定用户坐标系,坐标原点在Picture1中心; {- v+ A5 D$ ?
Picture1.Scale (-10, 10)-(10, -10)( C- ~ P& `9 O. n8 I% L% b
Picture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
) y0 J3 Z" O; u1 YPicture1.Line -(9.5, 0.5), RGB(0, 0, 255)
' D2 ?6 R0 N8 O: y0 F& p2 tPicture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)
: K" P" _* t$ u; l( z, KPicture1.ForeColor = RGB(0, 0, 255)
: i% G0 C2 F! XPicture1.Print "X"
" V% n- T$ G8 x'画 X 轴
; I" I7 M) e$ XPicture1.Line (0, -10)-(0, 10), RGB(0, 0, 255); ^% B" L; h4 L7 v# B. r! g
Picture1.Line -(0.5, 9.5), RGB(0, 0, 255)
" h1 s; G' |- O1 G. KPicture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)! f A3 N9 ~ E
Picture1.Print "Y"% B# h! [% j# P2 v Y
'画 Y 轴! T4 w$ c& ~, W, q3 F
For lin = -9 To 91 F$ e ^6 H% H, t- j3 H
Picture1.Line (lin, 0)-(lin, 0.25)6 }6 J6 B ^& }4 a; q
wor = PrintWord(lin - 0.5, -0.5, Str(lin))# y: Y* l9 }" M: X. B& ?
Picture1.Line (0, lin)-(-0.25, lin)
2 ?9 T4 C. T& i- ?; k" o( DIf lin <> 0 Then& _* ? \- B+ P
wor = PrintWord(-0.9, lin, Str(lin))) [, x5 b6 w4 M8 K0 n2 `1 J \0 @" m
End If7 g: y1 r. u' }) U. ^% u
Next lin
A1 U" o, }+ }# G9 ^8 I: |+ F) tPicture1.DrawWidth = 1
" x/ @, R1 j. d$ i+ ^" @End Sub- c: s( @% l! I- o
Private Sub cmdPlot_Click()
% I8 w$ Y+ Z* Q3 n _6 }XY1 g. ^. E1 r$ b
On Error Resume Next
; [, Z4 P& J* g& z7 K' A# G( ^4 vDim x As Double, Y As Double4 t/ a6 G+ R6 p e! c
Randomize( X. ^" s: g+ ^, f
8 Z; }' q! U/ H/ {/ [; [! P SC.Reset1 k4 `! q' u$ V/ [) q2 B
SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function"
u7 s/ R% |9 x0 K* S8 o For x = -15 To 15 Step 0.001
3 @; O9 j$ G- e! c& w& R1 p, A5 d Y = SC.Run("runthis", x), d8 V' `4 D' W, H3 {0 m
DoEvents
+ }- k( N' U: p Picture1.PSet (x, Y), RGB(250, 0, 0)) M# K) ? F" J A& l- u1 j
Next x y- Q* ]' L- P8 c- ` K' R% K
End Sub</P>6 C8 A. V! X1 x8 Z* Q
< > rivate Sub Command2_Click(). t9 A0 W. E' S2 A
XY
' g0 P1 W+ o. d! D) R' iEnd Sub</P>0 R8 a. h; Y' H' M* A S
< > rivate Sub Command3_Click()
' o y, F8 _: X$ REnd( }' {0 d2 ?) g% w) ~
End Sub</P>
( D! D5 k. d Z# |% d< >* Y0 u5 N9 J. B9 x1 I% X4 _/ `
Private Sub Form_Load()
" i0 f8 p" A* i. Q% ]Me.Caption = "美丽曲线——数学爱好者"* x2 R u2 q) ^# u$ k! c2 P v f' [
Me.Show
5 I! K4 W2 \% G, H9 T1 NMe.AutoRedraw = True
" X9 s! H+ A6 W6 j X1 W/ hXY" ~5 p- M* `) i- H! o. e# {
End Sub
9 c6 b! J2 s& i; G</P></TD>
2 i2 T# O. s4 N, Q. W% x* l( r<TD align=right width=60></TD></TR></TABLE>% F X1 o: S1 I8 O% c
< >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>) u& p& S7 N' ^8 _! ]6 D2 _: E7 C
[此贴子已经被作者于2005-3-4 17:40:39编辑过] |
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