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<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>, U! V) }: O6 C1 M! N' G
1 e! U1 e/ U' B+ Q E. F
<TR>
+ i! R3 z, S7 ]* w9 \6 ^<TD width=*>
: P$ F2 s5 v$ C% y6 P7 K1 i< ><B>帮帮忙,跪下谢谢斑竹,VB</B></P>
( \% r; I3 _+ R6 @' X, A< > rivate Function PrintWord(x, Y, Word As String)& _# I, R. T/ j* J
With Picture19 @, V* _6 V, c
.CurrentX = x
G4 _6 N( C1 q8 V3 y.CurrentY = Y
" T7 [: h, G$ Q$ ]5 r! w+ i2 k.ForeColor = RGB(0, 0, 255)
& O+ t: P1 n3 d% |End With9 e- M( c! e5 t4 G$ I! g# l
Picture1.Print Word
# _- L- M; X/ v3 \End Function9 M& N) z: m5 Y6 {
'定义画点函数2 E3 m9 ?) l- C s5 {
Private Function DrawDot(Px, Py, Color) l8 M9 \; I& E
Picture1.PSet (Px, Py), Color0 Q8 ~# d: n/ U% U! ]; D; ^+ f7 |
End Function: P' U T5 G0 [2 p7 N
Sub XY() '建立直角坐标系- `4 F5 {6 k. ]/ ~4 _9 o
Picture1.DrawWidth = 1 '设置线条宽度
+ T6 q5 ^6 g) m6 O# J$ YPicture1.Cls# f9 {0 [. {4 C) T1 Z' @
'设定用户坐标系,坐标原点在Picture1中心
7 ]1 d9 l2 `& d" s# Y; d' CPicture1.Scale (-10, 10)-(10, -10)
; p% u/ X- U* I) YPicture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
5 W7 G' U- n" v' v; VPicture1.Line -(9.5, 0.5), RGB(0, 0, 255)
/ D7 h* b$ T( d, L3 }! D# FPicture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)( l7 Z) e1 c4 j X+ t/ W* _
Picture1.ForeColor = RGB(0, 0, 255). Z. d( [: Y! k" p
Picture1.Print "X"
, X/ O: M; }8 {* {'画 X 轴
9 o4 s% M& B: O5 \/ i1 |Picture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)9 T( f5 K( e& r
Picture1.Line -(0.5, 9.5), RGB(0, 0, 255)
" G9 x: D6 g- H7 ]Picture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)7 f# m( X1 r4 J4 r: y2 Q: `) B! p
Picture1.Print "Y"
0 ~$ ~) @/ E7 i7 c'画 Y 轴
- e7 c. v: i5 C: zFor lin = -9 To 9
* l4 \' [. g {Picture1.Line (lin, 0)-(lin, 0.25)
# k/ m: k I- r: |7 g" O+ ]wor = PrintWord(lin - 0.5, -0.5, Str(lin))
. [. i8 U& h& ~2 K3 oPicture1.Line (0, lin)-(-0.25, lin)# w( O2 `. m6 u
If lin <> 0 Then' L( I! {' _3 J& Q0 a( d
wor = PrintWord(-0.9, lin, Str(lin))
/ P3 N4 U* p1 O6 REnd If6 ]1 Y' _/ J! g" w$ `1 j7 l
Next lin7 p( V, P/ |; ^5 P! M0 L4 }# Z( J
Picture1.DrawWidth = 1: `: C' L0 ?( X
End Sub2 Z! w \& V5 I3 t! p
Private Sub cmdPlot_Click()
* a% l+ E$ a' a& {. b- i8 TXY
! C6 i; t; t5 y* jOn Error Resume Next
: _' d, g4 C- Y; N. w* D8 WDim x As Double, Y As Double7 F- j g8 n$ i; \' t. O% T! L
Randomize
R1 l4 D0 g2 B* m! y
+ T2 Y$ v4 t# i% k+ |* f SC.Reset) e9 H+ R O" M ^! l# O
SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function" w2 o7 s0 q6 G& R1 G/ V
For x = -15 To 15 Step 0.001, x9 h0 \0 S( s) a; Y. X i
Y = SC.Run("runthis", x): [- [1 S. k/ I8 @; p
DoEvents& Y0 n' L$ V1 N- F/ g; p
Picture1.PSet (x, Y), RGB(250, 0, 0)! _' a1 q/ R1 q) J5 a& X
Next x
. N1 l. ]& P( O2 E* Y6 iEnd Sub</P>
3 T* ?. d0 R8 W8 j d, \< > rivate Sub Command2_Click()0 Y- n1 E4 U! X8 d- O0 s( j, M8 ]
XY) K/ ^) @9 W6 p9 s- x$ A# N
End Sub</P>+ a$ q8 f- P/ v, |
< > rivate Sub Command3_Click()6 O4 e+ I( p+ q' Y5 }6 p
End
9 M( r; R3 ?, Q9 wEnd Sub</P>
, a/ A5 Z& i2 K' ^6 \# q& J1 z< >
9 }0 }1 }, A/ A% v; NPrivate Sub Form_Load()2 f! G8 w, r& G( i; X; k
Me.Caption = "美丽曲线——数学爱好者"
( U4 V6 s$ {$ T0 t; u6 s" @ DMe.Show7 d R6 R" u. z+ }) v
Me.AutoRedraw = True, [; E. H; O) A* p6 p: G' {
XY" U) q0 S7 v" I& V# ]
End Sub8 B4 k% g2 v7 E* N$ @- Y
</P></TD>
8 y* J' S u. ~, K. x8 U% g<TD align=right width=60></TD></TR></TABLE>( v& S& J& n8 V. |1 K
< >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># L0 R$ O: l" Z$ ~' {4 q
[此贴子已经被作者于2005-3-4 17:40:39编辑过] |
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