帮帮忙，谢谢大侠，VB

llm3-1415926

<>rivate Sub cmdPlot_Click()
4 j6 r5 B/ c7 o2 X# G! m- _XY
( P, o4 E: M* {/ ]+ q7 JOn Error Resume Next
/ r+ M+ y% r- N* K/ j Dim x As Double, Y As Double
Randomize
5 J& E1 ^' S( ?0 k# M/ K: Z  
1 S0 g. l  B: ^. `: ~3 k        SC.Reset
2 X* ^* F. u( c+ O" u        SC.AddCode "Function RunThis(X)" &amp; vbCrLf &amp; "RunThis=" &amp; txtEquation &amp; vbCrLf &amp; "End Function"
       For x = -15 To 15 Step 0.001
         Y = SC.Run("runthis", x)
. ^. _% `3 d* v2 j% [4 }' h, C6 Q$ n         DoEvents
          Picture1.PSet (x, Y), RGB(250, 0, 0)
9 Q, J, H" n' z$ s          Next x
" V8 p* w8 U' p0 DEnd Sub</P>
% j$ d/ A1 }  t) L; v6 E1 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)
1 ?9 o: A! a% A. b0 BWith Picture1
( ~( }& A; P6 y5 T.CurrentX = x
; f( G" x6 f7 c, p0 E2 R9 T.CurrentY = Y
4 t2 C" T: K4 g# x- y.ForeColor = RGB(0, 0, 255)
End With
5 V4 c% d6 B% DPicture1.Print Word
End Function
'定义画点函数
1 @" W1 ]4 }0 ?% Y3 T( |/ HPrivate Function DrawDot(Px, Py, Color)
Picture1.PSet (Px, Py), Color
1 R3 b. h6 q$ U% EEnd 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
- B1 d+ b$ e. |* E1 z$ EPicture1.Scale (-10, 10)-(10, -10)
% \7 Y6 U1 `& e0 W% H" G  sPicture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
1 Y5 E5 B* i1 g& Q2 j' DPicture1.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)
0 Z+ F$ T  V/ T4 r* xPicture1.Print "X"
'画 X 轴
Picture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
Picture1.Line -(0.5, 9.5), RGB(0, 0, 255)
% ^5 B$ ]) P0 @4 `Picture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)
; F* x8 J+ W  l  H* w0 YPicture1.Print "Y"
'画 Y 轴
For lin = -9 To 9
Picture1.Line (lin, 0)-(lin, 0.25)
/ k" I* V9 K  Q" Q5 ?4 ^+ U9 f% dwor = PrintWord(lin - 0.5, -0.5, Str(lin))
1 |4 k- `$ W( R/ L9 G) lPicture1.Line (0, lin)-(-0.25, lin)
% b# Z& a, g' s2 |& ]If lin &lt;&gt; 0 Then
wor = PrintWord(-0.9, lin, Str(lin))
$ `/ Z. C* R0 _9 D- L) }, ~& w1 EEnd If
: b; j2 o6 Q) I+ n2 @. f4 QNext lin
" Z: w1 @) M  u9 h& B8 N% K; ZPicture1.DrawWidth = 1
End Sub
Private Sub cmdPlot_Click()
% O/ @" E5 L; D; O3 O8 z% l! RXY
+ d% ?* R  C* hOn Error Resume Next
Dim x As Double, Y As Double
0 m+ z- |4 N6 F4 R" c Randomize
  
        SC.Reset
        SC.AddCode "Function RunThis(X)" &amp; vbCrLf &amp; "RunThis=" &amp; txtEquation &amp; vbCrLf &amp; "End Function"
2 i  r# ^% ]. ]. \       For x = -15 To 15 Step 0.001
0 B6 X* ]) P) k# f+ K& S3 J& R! ~         Y = SC.Run("runthis", x)
         DoEvents
, t* ~& h$ u. J- a9 @3 j          Picture1.PSet (x, Y), RGB(250, 0, 0)
2 E7 J" Y! K# X! d9 B          Next x
End Sub</P><>rivate Sub Command2_Click()
' f5 g/ [2 `4 K% n( M' _6 S0 A/ fXY
End Sub</P><>rivate Sub Command3_Click()
7 u+ v8 K7 z0 i. f8 \End
* ?) L6 Z9 z% b2 p5 l& FEnd Sub</P><>
Private Sub Form_Load()
. E. l1 k* t1 Z* |/ Y+ iMe.Caption = "美丽曲线——山东省商河一中路来民"
2 b2 f) \# ]; k# O" r- M9 a- `+ d0 SMe.Show
+ ]+ ~# r9 x+ P1 K! |, n1 n+ ?Me.AutoRedraw = True
5 u; ?- }4 Z! {9 w2 U2 dXY
End Sub
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>

秋天的风儿

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