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< ><b>帮帮忙,跪下谢谢斑竹,VB</b></P>< > rivate Function PrintWord(x, Y, Word As String)' @3 Q: ]; F) U4 N+ j
With Picture1
& c* p" N5 R: y9 c* I.CurrentX = x; o7 o6 ?$ p7 M
.CurrentY = Y0 D1 b% Y/ C" r8 q+ I
.ForeColor = RGB(0, 0, 255)% z% Q6 o# G* m( ~- {& a
End With
4 o/ W& \( W; T d. T3 ~Picture1.Print Word
4 p( `% b8 `8 }! m. XEnd Function
* C% U& P M. c+ }$ U5 ^'定义画点函数
0 |$ }5 d5 k9 ?" L+ }& _Private Function DrawDot(Px, Py, Color). f6 Q; Z9 c; \2 v$ o# H3 L
Picture1.PSet (Px, Py), Color
% y% B9 f% D4 H- S- p2 @2 m9 wEnd Function! d b# F! Y t! A
Sub XY() '建立直角坐标系, F8 R$ ^ d( G; G- w9 `1 ]1 ~
Picture1.DrawWidth = 1 '设置线条宽度- n% b1 v" L& H1 l; s( ]: F
Picture1.Cls
7 h( W! {! O# y+ H" O5 O* Q'设定用户坐标系,坐标原点在Picture1中心$ r7 m' v! d& h* S
Picture1.Scale (-10, 10)-(10, -10)
6 {( l$ @" @3 \4 R9 ~Picture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)5 P& L/ I- R, `5 q8 J5 }. T
Picture1.Line -(9.5, 0.5), RGB(0, 0, 255), J( u+ `' V5 I6 T" G, J9 H( ^% ?" ^
Picture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)
8 f5 g5 V+ l" B, T3 iPicture1.ForeColor = RGB(0, 0, 255)
5 } i4 b/ ]" v( d# APicture1.Print "X" d. t. U" D# t3 C
'画 X 轴
* z v" X' Y: ^8 z% vPicture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
% N5 K3 c: w$ \0 mPicture1.Line -(0.5, 9.5), RGB(0, 0, 255)
: J* n" r+ f( APicture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)# e6 r2 i, D# c% @ A7 G% r
Picture1.Print "Y"$ U& t% G2 t: S2 I# Q1 l
'画 Y 轴# n2 E2 B# o2 t' R q/ N
For lin = -9 To 9' g* _5 L/ u" U, J9 C
Picture1.Line (lin, 0)-(lin, 0.25)
% k+ F, R0 x* o& \/ W! Q, J: ywor = PrintWord(lin - 0.5, -0.5, Str(lin))
l1 e: U) \# ?1 X8 z) V( u/ W `Picture1.Line (0, lin)-(-0.25, lin)
* t( r3 ^' p: f v, nIf lin <> 0 Then
' B, L) c. l0 h6 g$ Qwor = PrintWord(-0.9, lin, Str(lin))% o( K/ [( m8 u- ^# n% @
End If
5 N1 V/ z) y/ h$ ]) |$ C/ jNext lin
- c ~. o. m R8 wPicture1.DrawWidth = 1& l. A4 m5 P9 D% J7 {
End Sub Z- |; I5 l9 I' t- K. C
Private Sub cmdPlot_Click()9 Q1 {9 O- ^. q2 N
XY, T. {; Q$ n8 t* ], S) ^0 y% a
On Error Resume Next [% a% Q2 v% B/ ]
Dim x As Double, Y As Double$ D2 z4 R2 ^) n( x9 v" `, A. ^
Randomize$ l L# z9 Z# s9 f& C( ^( u4 r5 q
# \! k3 a6 y* r7 s
SC.Reset
/ U! m7 m6 r, A1 |; N5 a SC.AddCode "Function RunThis(X)" & vbCrLf & "RunThis=" & txtEquation & vbCrLf & "End Function": n! a& o9 b% T$ O& O W
For x = -15 To 15 Step 0.0012 ]* j' f. J$ J4 o4 r8 O
Y = SC.Run("runthis", x)
5 b6 p3 k( ~3 V, [2 A5 k/ x DoEvents3 R9 \5 y; j% h9 X5 s
Picture1.PSet (x, Y), RGB(250, 0, 0)
* l8 ^9 j% `( a5 I2 a Next x
, y2 Q# E9 I2 P8 K/ X8 E- ]+ \4 DEnd Sub</P>< > rivate Sub Command2_Click()6 M \( }, V" h% H$ _; o; I
XY+ S9 l# M: j- f3 A- V
End Sub</P>< > rivate Sub Command3_Click()) x) F7 S+ j- ~) y. N, `) N7 @
End( r( }! }9 e; N7 _- S' s8 ]
End Sub</P>< >3 L, z) j! q# t8 Z# I
Private Sub Form_Load()8 |" O4 P4 d& r. K& y3 s4 o* N
Me.Caption = "美丽曲线——山东省商河一中路来民"* }( h; t! @4 g f, v" D
Me.Show! L9 ?. m/ w, L4 ^& z
Me.AutoRedraw = True1 Z$ [& D) f( ^% i& j7 ~, t
XY3 V7 ], m+ a( }1 w! t+ z8 W
End Sub
7 S& i& Q8 O4 a4 `控件</P>< >为仕么Y=LOG(X),SQR(X)也有图象(X轴负半轴), SC为MS.SCRIPT.control请帮忙,谢谢斑竹,跪谢!!!</P> |
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