帮帮忙，谢谢大侠，VB

llm3-1415926

<>rivate Sub cmdPlot_Click()
XY
On Error Resume Next
  J% H- e: G! ^/ w# ?7 Y  l Dim x As Double, Y As Double
Randomize
  
  u: J; I' a) c+ E        SC.Reset
        SC.AddCode "Function RunThis(X)" &amp; vbCrLf &amp; "RunThis=" &amp; txtEquation &amp; vbCrLf &amp; "End Function"
       For x = -15 To 15 Step 0.001
8 S% I6 G1 g- O$ [4 k         Y = SC.Run("runthis", x)
; k& V+ y# }. ]         DoEvents
7 k9 c2 {; ~- F6 ^( P          Picture1.PSet (x, Y), RGB(250, 0, 0)
          Next x
End Sub</P>
<>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)
With Picture1
; k$ o" r0 h! A( l.CurrentX = x
1 G- Z% j: y0 o.CurrentY = Y
.ForeColor = RGB(0, 0, 255)
2 H7 U3 F+ D+ Q5 h7 z4 S+ |End With
Picture1.Print Word
End Function
8 t+ w2 k# u9 d' H  k1 C'定义画点函数
Private Function DrawDot(Px, Py, Color)
; r( b1 e5 h$ W3 x/ TPicture1.PSet (Px, Py), Color
  u3 k" e4 O; F  k" ^2 F; `End Function
Sub XY() '建立直角坐标系
  c+ z1 v' u; C- E% MPicture1.DrawWidth = 1 '设置线条宽度
) I3 _: l9 _3 F9 `/ T/ cPicture1.Cls
'设定用户坐标系，坐标原点在Picture1中心
Picture1.Scale (-10, 10)-(10, -10)
9 y4 F. U& u' p3 w2 VPicture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
Picture1.Line -(9.5, 0.5), RGB(0, 0, 255)
2 C2 V! |6 k; o. e0 ~1 G7 oPicture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)
Picture1.ForeColor = RGB(0, 0, 255)
Picture1.Print "X"
'画 X 轴
Picture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
! }/ V7 G7 x# [$ D. g  ?Picture1.Line -(0.5, 9.5), RGB(0, 0, 255)
, y" A* T: b  |" V  l: j: R8 V) NPicture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)
Picture1.Print "Y"
/ X2 ^/ i, C# d+ w7 P# i9 Q'画 Y 轴
For lin = -9 To 9
; x/ w/ q. |$ Q) b% nPicture1.Line (lin, 0)-(lin, 0.25)
8 }7 ~3 d, [; z, n8 V" Lwor = PrintWord(lin - 0.5, -0.5, Str(lin))
Picture1.Line (0, lin)-(-0.25, lin)
If lin &lt;&gt; 0 Then
8 I; I. y0 G+ _9 K. [) A1 u3 Xwor = PrintWord(-0.9, lin, Str(lin))
6 H6 O8 I9 W' z1 E7 c+ ~4 OEnd If
Next lin
Picture1.DrawWidth = 1
  [% [6 P0 v3 e+ ]2 g2 _' |! W+ r# jEnd Sub
Private Sub cmdPlot_Click()
1 l% K( J8 p0 m2 v2 ?. S" D7 g) i% I2 PXY
$ _$ v0 }/ r* X( X# MOn Error Resume Next
1 |- k1 B; |& v5 t7 w9 R Dim x As Double, Y As Double
Randomize
  
        SC.Reset
        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)
         DoEvents
          Picture1.PSet (x, Y), RGB(250, 0, 0)
; o/ C5 i4 @0 |1 e          Next x
+ W  A) Q" A- `3 T7 y; p9 s  MEnd Sub</P><>rivate Sub Command2_Click()
XY
End Sub</P><>rivate Sub Command3_Click()
' K3 ]7 w) _4 @. ]3 xEnd
2 l9 n2 M5 k3 \! J' N6 z3 r7 f. TEnd Sub</P><>
Private Sub Form_Load()
3 ^$ D& W1 b9 tMe.Caption = "美丽曲线——山东省商河一中路来民"
Me.Show
1 u- o7 ~1 V: k( k& F& ?Me.AutoRedraw = True
XY
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

呵呵，看大家评论如何
2 a, a% `( k% g+ w% i0 q7 I- O) v" d
! A( ]3 z6 r% P4 W! U



% M% n0 I2 N4 U2 V- i8 {; E: {+ [
) ~/ G$ L6 U& u


. W5 `) w6 O) y  G
* [" b) \; L$ l
4 T! k2 [8 }) z6 M  ?  W: g
大家好,能交朋友嘛？ok0633.com

ealx0yJu

我看不错噢 谢谢楼主！