📄 form2.frm
字号:
VERSION 5.00
Begin VB.Form Form2
Caption = "生成在[0，1]区间均匀分布的随机数"
ClientHeight = 7335
ClientLeft = 60
ClientTop = 450
ClientWidth = 9825
LinkTopic = "Form2"
ScaleHeight = 7335
ScaleWidth = 9825
StartUpPosition = 3 '窗口缺省
Begin VB.CommandButton Command6
Caption = "抽样数据的仿真"
Height = 495
Left = 5080
TabIndex = 20
Top = 6120
Width = 1695
End
Begin VB.CommandButton Command5
Caption = "画出均值和方差"
Height = 615
Left = 6840
TabIndex = 18
Top = 3360
Width = 2775
End
Begin VB.CommandButton Command4
Caption = "返回首页"
Height = 495
Left = 7560
TabIndex = 17
Top = 6120
Width = 1335
End
Begin VB.CommandButton Command3
Caption = "随机信号的仿真"
Height = 495
Left = 2600
TabIndex = 16
Top = 6120
Width = 1695
End
Begin VB.CommandButton Command2
Caption = "高斯分布"
Height = 495
Left = 480
TabIndex = 15
Top = 6120
Width = 1335
End
Begin VB.PictureBox Picture2
Height = 1935
Left = 240
ScaleHeight = 3.307
ScaleMode = 7 'Centimeter
ScaleWidth = 11.139
TabIndex = 12
Top = 840
Width = 6375
End
Begin VB.CommandButton Command1
Caption = "产生"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 8160
TabIndex = 11
Top = 360
Width = 1215
End
Begin VB.TextBox Text3
Alignment = 2 'Center
Height = 375
Left = 7560
TabIndex = 9
Top = 2160
Width = 2055
End
Begin VB.TextBox Text4
Height = 375
Left = 7560
TabIndex = 8
Top = 2760
Width = 2055
End
Begin VB.TextBox Text2
Height = 375
Left = 7560
TabIndex = 6
Top = 1560
Width = 2055
End
Begin VB.TextBox Text1
Height = 375
Left = 7560
TabIndex = 4
Top = 960
Width = 2055
End
Begin VB.TextBox Text5
Height = 375
Left = 7080
TabIndex = 2
Top = 360
Width = 735
End
Begin VB.PictureBox Picture1
Height = 1935
Left = 240
ScaleHeight = 3.307
ScaleMode = 7 'Centimeter
ScaleWidth = 11.139
TabIndex = 0
Top = 3480
Width = 6375
End
Begin VB.Label Label5
Caption = $"Form2.frx":0000
BeginProperty Font
Name = "宋体"
Size = 10.5
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 1695
Left = 6840
TabIndex = 19
Top = 4200
Width = 2895
End
Begin VB.Label Label10
Caption = "产生在[0,1]区间均匀分布的随机数"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Left = 1560
TabIndex = 14
Top = 3000
Width = 3735
End
Begin VB.Label Label8
Caption = "对应的波形图"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Left = 2520
TabIndex = 13
Top = 5640
Width = 1455
End
Begin VB.Label Label3
Caption = "均值"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Left = 6840
TabIndex = 10
Top = 2280
Width = 495
End
Begin VB.Label Label4
Alignment = 2 'Center
Caption = "方差"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Left = 6720
TabIndex = 7
Top = 2880
Width = 735
End
Begin VB.Label Label2
Caption = "最小值"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Left = 6720
TabIndex = 5
Top = 1680
Width = 735
End
Begin VB.Label Label1
Alignment = 2 'Center
Caption = "最大值"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Left = 6720
TabIndex = 3
Top = 1080
Width = 735
End
Begin VB.Label Label9
Caption = "请输入要产生均匀分布随机数的个数，然后单击“产生”按钮"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Left = 240
TabIndex = 1
Top = 360
Width = 6615
End
End
Attribute VB_Name = "Form2"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Label6_Click()
End Sub
Private Sub Command1_Click()
Dim x(100000) As Double
Dim Y(100000) As Double
Dim w(100000) As Double
Dim v(100000) As Double
Dim e As Integer
Static a As Double
Static b As Double
Static c As Double
Static d As Double
e = 1
n = Val(Text5.Text)
If n < 0 Or n = 0 Then
j = MsgBox("请输入大于0的数", 0, 错误)
If j = 1 Then
Text5.SetFocus
End If
Exit Sub
End If
Picture1.Cls
Picture1.Line (-1, 0)-(10.5, 0)
Picture1.Line (0, -1)-(0, 3)
Picture1.Line (-0.2, 2.8)-(0, 3)
Picture1.Line (0.2, 2.8)-(0, 3)
Picture1.Line (10.3, 0.2)-(10.5, 0)
Picture1.Line (10.3, -0.2)-(10.5, 0)
Picture1.CurrentX = -0.2: Picture1.CurrentY = -0.1: Picture1.Print "0"
Picture1.CurrentX = 10.5: Picture1.CurrentY = 0: Picture1.Print "x"
Picture1.CurrentX = -0.3: Picture1.CurrentY = 3: Picture1.Print "Y"
Picture1.Line (-0.1, 2.5)-(0.1, 2.5)
Picture1.Line (10, 0.1)-(10, -0.1)
Picture1.CurrentX = -0.3: Picture1.CurrentY = 2.6: Picture1.Print "1"
Picture1.CurrentX = 9.8: Picture1.CurrentY = -0.2: Picture1.Print n
Picture2.Cls
Picture2.Line (-1, 0)-(10.5, 0)
Picture2.Line (0, -1)-(0, 3)
Picture2.Line (-0.2, 2.8)-(0, 3)
Picture2.Line (0.2, 2.8)-(0, 3)
Picture2.Line (10.3, 0.2)-(10.5, 0)
Picture2.Line (10.3, -0.2)-(10.5, 0)
Picture2.CurrentX = -0.2: Picture2.CurrentY = -0.1: Picture2.Print "0"
Picture2.CurrentX = 10.5: Picture2.CurrentY = 0: Picture2.Print "x"
Picture2.CurrentX = -0.3: Picture2.CurrentY = 3: Picture2.Print "Y"
Picture2.Line (-0.1, 2.5)-(0.1, 2.5)
Picture2.Line (10, 0.1)-(10, -0.1)
Picture2.CurrentX = -0.3: Picture2.CurrentY = 2.6: Picture2.Print "1"
Picture2.CurrentX = 9.8: Picture2.CurrentY = -0.2: Picture2.Print n
Picture2.Line (0, 2.5)-(10, 2.5)
Randomize
For i = 0 To n - 1
x(i) = Rnd()
Next i
For i = 0 To n - 2
Picture1.Line (i * 10 / (n - 1), x(i) * 2.5)-((i + 1) * 10 / (n - 1), x(i + 1) * 2.5)
Picture2.PSet (i * 10 / (n - 1), x(i) * 2.5), RGB(0, 0, 255)
Picture2.PSet (10, x(n - 1) * 2.5), RGB(0, 0, 255)
Next i
For i = 0 To n - 1
a = a + x(i)
Next i
a = a / n
Text3.Text = a
b = x(0)
For i = 1 To n - 1
If b > x(i) Then
b = x(i)
Else
End If
Next i
Text2.Text = b
c = x(0)
For i = 1 To n - 1
If c < x(i) Then
c = x(i)
Else
End If
Next i
Text1.Text = c
For i = 0 To n - 1
Y(i) = (x(i) - a) * (x(i) - a)
Next i
For i = 0 To n - 1
d = d + Y(i)
Next i
d = d / n
Text4.Text = d
For i = 1 To n - 1
w(0) = x(0)
j = i
e = e + 1
w(i) = ((e - 1) / e) * w(i - 1) + (1 / e) * x(j)
v(i) = ((e - 1) / e) * (v(i - 1) + (1 / e) * (x(i) - w(i - 1)) * (x(i) - w(i - 1)))
Next i
For i = 0 To n - 2
Picture1.Line (i * 10 / (n - 1), w(i) * 2.5)-((i + 1) * 10 / (n - 1), w(i + 1) * 2.5), RGB(255, 255, 0)
Picture1.Line (i * 10 / (n - 1), v(i) * 2.5)-((i + 1) * 10 / (n - 1), v(i + 1) * 2.5), RGB(0, 0, 255)
Next i
Picture1.CurrentX = 10: Picture1.CurrentY = w(n - 1) * 2.5: Picture1.Print "E1"
Picture1.CurrentX = 10: Picture1.CurrentY = v(n - 1) * 2.5: Picture1.Print "D1"
End Sub
Private Sub Command2_Click()
Form3.Show
Unload Form2
End Sub
Private Sub Command3_Click()
Form4.Show
Unload Form2
End Sub
Private Sub Command4_Click()
Form1.Show
Unload Form2
End Sub
Private Sub Command5_Click()
Label5.Visible = True
Picture1.Line (0, Val(Text3.Text) * 2.5)-(10, Val(Text3.Text) * 2.5), RGB(255, 0, 0)
Picture1.CurrentX = 10: Picture1.CurrentY = Val(Text3.Text) * 2.5 + 0.3: Picture1.Print "E2"
Picture1.Line (0, Val(Text4.Text) * 2.5)-(10, Val(Text4.Text) * 2.5), RGB(0, 255, 0)
Picture1.CurrentX = 10: Picture1.CurrentY = Val(Text4.Text) * 2.5 + 0.3: Picture1.Print "D2"
End Sub
Private Sub Command6_Click()
Form5.Show
Unload Form2
End Sub
Private Sub Form_activate()
Text1.Text = ""
Text2.Text = ""
Text3.Text = ""
Text4.Text = ""
Text5.Text = ""
Text5.SetFocus
Label5.Visible = False
Picture1.Cls
Picture2.Cls
Picture1.Scale (-1.5, 3.5)-(11, -1.5)
Picture1.Line (-1, 0)-(10.5, 0)
Picture1.Line (0, -1)-(0, 3)
Picture1.Line (-0.2, 2.8)-(0, 3)
Picture1.Line (0.2, 2.8)-(0, 3)
Picture1.Line (10.3, 0.2)-(10.5, 0)
Picture1.Line (10.3, -0.2)-(10.5, 0)
Picture1.CurrentX = -0.2: Picture1.CurrentY = -0.1: Picture1.Print "0"
Picture1.CurrentX = 10.5: Picture1.CurrentY = 0: Picture1.Print "x"
Picture1.CurrentX = -0.3: Picture1.CurrentY = 3: Picture1.Print "Y"
Picture2.Scale (-1.5, 3.5)-(11, -1.5)
Picture2.Line (-1, 0)-(10.5, 0)
Picture2.Line (0, -1)-(0, 3)
Picture2.Line (-0.2, 2.8)-(0, 3)
Picture2.Line (0.2, 2.8)-(0, 3)
Picture2.Line (10.3, 0.2)-(10.5, 0)
Picture2.Line (10.3, -0.2)-(10.5, 0)
Picture2.CurrentX = -0.2: Picture2.CurrentY = -0.1: Picture2.Print "0"
Picture2.CurrentX = 10.5: Picture2.CurrentY = 0: Picture2.Print "x"
Picture2.CurrentX = -0.3: Picture2.CurrentY = 3: Picture2.Print "Y"
End Sub
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