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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
6 u5 I6 I4 i+ z; b: @# r$ S1 g
2 [$ O9 ]$ h2 s! q<TR> e9 l' t% a) h; W* B2 B' b
<TD width=*>
. a! ?7 ]: u& Q< ><B>帮帮忙,跪下谢谢斑竹,VB</B></P>. B a5 @ B2 R$ U
< > rivate Function PrintWord(x, Y, Word As String). ^' B3 W- o2 [8 `+ e
With Picture16 n6 X, p* v x0 D
.CurrentX = x
& u. W( B: n2 m% \$ ^# B& v- f.CurrentY = Y: j$ v. N* o P3 O2 m1 W: Q
.ForeColor = RGB(0, 0, 255)
% t0 i1 W# o1 `End With
/ Y) g6 ~) t8 TPicture1.Print Word a! b( b5 o6 F z, {9 P8 C2 P
End Function
4 }0 ^2 G; a% {, {'定义画点函数+ }3 m, V1 b: _% h; {" U9 I
Private Function DrawDot(Px, Py, Color)3 I/ {% P! Y N4 Q. R5 j
Picture1.PSet (Px, Py), Color. L! n; Q1 E3 N
End Function
" Y0 G `" z) f1 C' A+ v) USub XY() '建立直角坐标系( `: h* a0 o0 B+ p' v$ G
Picture1.DrawWidth = 1 '设置线条宽度3 V1 X) f! v d" ?& K+ h
Picture1.Cls
( w' {1 t5 Q/ O$ {: E9 T'设定用户坐标系,坐标原点在Picture1中心
( M7 Y7 K5 A+ m! LPicture1.Scale (-10, 10)-(10, -10)
- z1 l4 N; Z- lPicture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)& a+ W' A( U/ `( s, x3 o5 w
Picture1.Line -(9.5, 0.5), RGB(0, 0, 255)& o1 |' K/ S7 }) F8 u. J
Picture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)
^' [4 _; @# U; N& L: K6 P/ zPicture1.ForeColor = RGB(0, 0, 255); P' L V% {: |. B$ x' b
Picture1.Print "X"
, C3 r6 m( V5 x0 K' J5 |! I'画 X 轴! o% j+ d2 w2 n. j) U, c
Picture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
& e# _$ p& G! O5 cPicture1.Line -(0.5, 9.5), RGB(0, 0, 255)
" U. s1 X) D2 r* \& J7 IPicture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)
3 O: z8 o; b6 a+ \% g `6 pPicture1.Print "Y"( L* t" @8 F) l) C7 R% f& w
'画 Y 轴# f0 X8 A- l' t# u) \
For lin = -9 To 9% `0 V% X- m x6 y
Picture1.Line (lin, 0)-(lin, 0.25)
' @7 X7 V1 K1 r* H0 V) ^4 h1 I8 K! owor = PrintWord(lin - 0.5, -0.5, Str(lin))
* d/ K {" q$ {, I2 V0 J/ ]6 zPicture1.Line (0, lin)-(-0.25, lin)
+ z0 A0 ^: p% T5 _If lin <> 0 Then5 Z6 B/ G: I# d2 `
wor = PrintWord(-0.9, lin, Str(lin))
# T0 c: ^/ d k: ?/ S: f- aEnd If
3 T- A7 Y# z- t6 GNext lin
7 Q; n0 r( E- a" ~0 D5 oPicture1.DrawWidth = 1
9 F% W9 ~6 x+ y+ M I4 K0 |End Sub* l: A" _/ p+ G, a. g% ]% f
Private Sub cmdPlot_Click()
2 W4 l; u7 x& x4 e( GXY
2 w% G V" P/ U" Q+ t, _2 i: ] \On Error Resume Next
% _; ?) B8 p& V; `Dim x As Double, Y As Double
& o5 q" H+ I& K# wRandomize
) v% J5 g5 L! A7 o- P# H/ R& p 3 \% k% W) |$ j4 \" k) d
SC.Reset8 X* b# |& G( L: h" `/ ~6 o! U
SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function"1 g3 {, D) a g' X6 r
For x = -15 To 15 Step 0.001, y& k# l5 t" g& T" H& b
Y = SC.Run("runthis", x)# t5 o6 O0 X6 ^8 Q* y; C# w
DoEvents& b1 Z' q \9 p+ M5 z9 T' v( U
Picture1.PSet (x, Y), RGB(250, 0, 0)' g7 _2 _9 T; y- T3 b
Next x
& `/ b3 y: X$ P3 q, O f. n; b' P4 SEnd Sub</P>0 P) N: i+ q" k' {
< > rivate Sub Command2_Click()3 [- n4 x( ?/ y s
XY2 U, n- ~& ^( E; T
End Sub</P> R' n$ u' Q* A8 y# h
< > rivate Sub Command3_Click()
. u2 K& i1 I7 ?. G% AEnd
7 L/ u! [6 k0 z) m. P; |- r* |2 BEnd Sub</P>
& a1 C. m( M( s< >
( |- F0 |; B9 R/ r1 f1 E2 }Private Sub Form_Load()
s; ~" W3 O# H" Z% B5 v1 M: y) ~Me.Caption = "美丽曲线——数学爱好者"
) Y7 r( I! V7 X0 J6 D i# oMe.Show
7 C- d, T& \+ B# _( ZMe.AutoRedraw = True
, C/ s3 n6 P0 S: z4 [ t" bXY
$ J" P0 H2 y% C. e1 B5 fEnd Sub
0 O T& F- Y Y0 s, x</P></TD>
) t" E+ x" b+ Y7 A2 E<TD align=right width=60></TD></TR></TABLE>
& F5 l# G$ l5 _3 g< >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>7 p, x; r' y: l9 ]
[此贴子已经被作者于2005-3-4 17:40:39编辑过] |
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