帮帮忙，谢谢大侠，VB

llm3-1415926

<>rivate Sub cmdPlot_Click()
XY
On Error Resume Next
" Y  x: E, p7 v8 h/ W  S- e6 X Dim x As Double, Y As Double
3 N) J& Y9 h3 z8 Z Randomize
7 U8 e4 M- d, P0 s/ z7 `5 u0 ?' [  
# }& D, g: f1 N& C+ f# D  p2 h        SC.Reset
/ B  i/ v% C% g        SC.AddCode "Function RunThis(X)" &amp; vbCrLf &amp; "RunThis=" &amp; txtEquation &amp; vbCrLf &amp; "End Function"
7 l, B5 C* l2 a& m       For x = -15 To 15 Step 0.001
" Q. g7 p4 P0 \         Y = SC.Run("runthis", x)
; e+ f/ o# C7 k( A1 \* {         DoEvents
! ]! P4 q; g, {& k+ F          Picture1.PSet (x, Y), RGB(250, 0, 0)
* f, l9 q" [  q          Next x
End Sub</P>
0 c3 R) ?1 Y$ ?& |. z* I# }+ Q0 d<>为仕么Y=LOG（X），SQR（X）也有图象（X轴负半轴），请帮忙</P>

USER001

把完整代码发上来

llm3-1415926

<><b>帮帮忙，跪下谢谢斑竹，VB</b></P><>rivate Function PrintWord(x, Y, Word As String)
$ p& D8 p+ l) FWith Picture1
" V* p" o/ `  a: [9 c.CurrentX = x
! F- S, S9 Z' Q$ T' }4 P7 G.CurrentY = Y
.ForeColor = RGB(0, 0, 255)
$ ~9 s2 @& d0 n' PEnd With
Picture1.Print Word
3 B9 f+ S$ S) r* J' \, WEnd Function
8 J8 i9 N% O4 h- l'定义画点函数
Private Function DrawDot(Px, Py, Color)
Picture1.PSet (Px, Py), Color
( a: q. J, g/ f# w) a- ]End Function
Sub XY() '建立直角坐标系
Picture1.DrawWidth = 1 '设置线条宽度
Picture1.Cls
'设定用户坐标系，坐标原点在Picture1中心
2 t* T7 g+ |9 o3 U, w  R6 [  P- {8 vPicture1.Scale (-10, 10)-(10, -10)
' Z! m, A, |9 A* L$ vPicture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
Picture1.Line -(9.5, 0.5), RGB(0, 0, 255)
Picture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)
Picture1.ForeColor = RGB(0, 0, 255)
) t1 `! _, p1 X8 e- DPicture1.Print "X"
1 ^/ T5 N1 I1 y) i: b+ X1 ^( t1 ~'画 X 轴
& F: Q! N) E4 C2 m3 kPicture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
  [1 N" ~0 w0 z6 ~, ^Picture1.Line -(0.5, 9.5), RGB(0, 0, 255)
0 e2 e1 \+ S, x4 J6 ^Picture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)
Picture1.Print "Y"
'画 Y 轴
" f3 O! w7 N( n2 m) \For lin = -9 To 9
2 \; l1 [3 [; T! b- N0 iPicture1.Line (lin, 0)-(lin, 0.25)
wor = PrintWord(lin - 0.5, -0.5, Str(lin))
( k/ N% i% ]2 o) _Picture1.Line (0, lin)-(-0.25, lin)
! Q# A( g  O  i7 lIf lin &lt;&gt; 0 Then
wor = PrintWord(-0.9, lin, Str(lin))
1 v6 A/ h; G% ]3 O2 Z. Z6 R1 aEnd If
Next lin
) B1 f% _: r$ `1 S/ N& DPicture1.DrawWidth = 1
End Sub
3 \6 n) t1 v  C- s, QPrivate Sub cmdPlot_Click()
* r% z, ~- j5 Y! V' b% YXY
, ~" n+ }) [( s& WOn Error Resume Next
Dim x As Double, Y As Double
Randomize
- u+ z5 ~, D- @$ D6 T  
8 D9 k; B4 t# V        SC.Reset
3 [7 D+ R, e  l5 F& l! m6 K# O        SC.AddCode "Function RunThis(X)" &amp; vbCrLf &amp; "RunThis=" &amp; txtEquation &amp; vbCrLf &amp; "End Function"
( ]" f# A" v& `1 L1 f       For x = -15 To 15 Step 0.001
         Y = SC.Run("runthis", x)
         DoEvents
          Picture1.PSet (x, Y), RGB(250, 0, 0)
          Next x
End Sub</P><>rivate Sub Command2_Click()
' R1 U, s. L0 O- u4 M3 }XY
End Sub</P><>rivate Sub Command3_Click()
End
End Sub</P><>
Private Sub Form_Load()
) s7 y( C% q' C$ ], e# IMe.Caption = "美丽曲线——山东省商河一中路来民"
Me.Show
  Z5 I" Y, h7 d, p. `/ C$ Y7 D% UMe.AutoRedraw = True
XY
/ Z3 k2 u  G4 x5 F, J  Z4 Z$ x- sEnd Sub
) A* O6 e9 X0 Z, h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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