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_8. Visual Basic. .
1. Visual Basic:
→ →Microsoft Visual Studio 6.0→ MicrosoftVisualBasic 6.0
2. New Project Standard EXE => ³. , :
Project l-Microsoft Visual Basic [design], ;
Project l-Form l(Form), ;
( ) '.
3. VisualBasic:
Properties Window '.
Project l-Form l(Code).
4. Project 1 . :
Run =>Start ;
Start ► ;
F5.
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,
,
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(Alt + ).
6. ³ Width Height.
. , Width Height ( ) Properties-Form 1.
' Categorized Properties, o . Alphabetic ' . Name - ' '.
7. .
BackColor ▼. :
System;
Palette .
8. .
9. (' Label) " ".
10. Label(A) . ', , , .1, . ' Labell , Properties Caption Label 1 " " . AutoSize ' True. Font () :
Font: Times New Roman Cyr ( MS SansSerif);
Fontstyle: Bold;: 18;
, ForeColor.
.1 .2
11. .
.2.
12. ' Image ().
Image - , , (). ' '. ̳ ' "" ( ). ' ', Visual Basic ' ( Name), . ' ' Imagel.
13. Picture () ' Imagel.
' True Stretch. Picture Properties. ▬, Loadpicture, (:\ ProgramFiles \ Microsoft Office \ Clipart \ Popular.)
14. , ' Image.
.4. , ' ' Image2.
15. Visible () , .
False Visible .
16. - ' CommandButton mmandl Command2.
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Commandl . CommandlClick, Command 1:
PrivateSubCommandl_Click()
...
EndSub
. :
PrivateSubCommandl_Click()
Imagel.Visible = True
' 1
Image2.Visible = False
' 2
EndSub
' Imagel , ' Image2 . " 2" 䳿 .
:
PrivateSubCommand2_Click()
Imagel.Visible = False
'
Image2.Visible = True
'
EndSub
18. , . " ".
19. _8. .
Visual Basic :
1- - : File −>Save Form As −> : _8 __8_, .
2- : File −>Save Project As −> _8 __8_, .
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_9. Visual Basic. .
1. Visual Basic.
2. Visual Basic: −>−>Visual Basic−>VisualBasic 6.0.
3. New Project.
4. __9_, ᒺ: 6 Label1 Label6 ( ϲ, , - , ), 4 Text1 Text4 ( ϲ, , - ) Command1. Command1 , . Label6. .
5. Caption , ForeColor .
6. ( Caption), . ( Text), . ᒺ ᒺ:
Label1 −> Text1
Label2 −> Text2
Label3 −> Text3
Label4 −> Text4
7. Command1 ( Caption), .
8. , .
9. _9. .
Visual Basic :
1- - : File −>Save Form As −> : _9 __9_, .
2- : File −>Save Project As −> _9 __9_, .
10. , . , . ϳ Label6 .
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10
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: Visual Basic .
1:
_10. Visual Basic. .
1. VisualBasic: −>−>Visual Basic−>VisualBasic 6.0. 6 , 3 .
2. 䳿 . If... Then If... Then... Else. , :
Private Sub Command1_Click()
Dim a, b, c, D, x1, x2 As Double
Text1
a = Val(Text1.Text)
Text2 b
b = Val(Text2.Text)
Text3
c = Val(Text3.Text)
D = b * b - 4 * a * c
, =
If (a = 0) And (b = 0) And (c = 0) Then Label5.Caption = "'!"
(=0, b bx+c=0)
If (a = 0) And (b <> 0) Then Label5.Caption = -c / b
, a b= 0,
If (a = 0) And (b = 0) And (c <> 0) Then Label5.Caption = "!"
, , 䒺
If (a <> 0) And (D < 0) Then Label5.Caption = "!"
, ,
If (a <> 0) And (D > 0) Then
x1 = (-b - Sqr(D)) / (2 * a)
Label4.Caption = x1
x2 = (-b + Sqr(D)) / (2 * a)
Label5.Caption = x2
End If
If (a<> 0) And (D= 0) Then
,
Label4.Caption = !
Label5.Caption=-b / (2*a)
End If
EndSub
3. .
4. _10. .
Visual Basic :
1- - : File −>Save Form As −> : _10 __10_1_, .
2- : File −>Save Project As −> _10 __10_1_, .
5. , .
2:
1. , .
2. . .
3. :
Private Sub Command1_Click()
Dim a, b, c, D, x1, x2 As Double
a = Val(InputBox(" ", "", a))
b = Val(InputBox(" b", "", b))
c = Val(InputBox(" c", "", c))
D = b * b - 4 * a * c
If (a = 0) And (b <> 0) Then
x1 = -c / b
MsgBox x1,, "x1"
End If
If (a = 0) And (b = 0) And (c = 0) Then MsgBox ".",, "x1"
If (a = 0) And (b = 0) And (c <> 0) Then MsgBox "'",, "x1"
If (a <> 0) And (D < 0) Then MsgBox ("'")
If (a <> 0) And (D >= 0) Then
x1 = (-b - Sqr(D)) / (2 * a)
MsgBox "."
MsgBox x1,, "x1"
x2 = (-b + Sqr(D)) / (2 * a)
MsgBox x2,, "x2"
EndIf
EndSub
4. _10. .
Visual Basic :
1- - : File −>Save Form As −> : _10 __10_2_, .
2- : File −>Save Project As −> _10 __10_2_, .
5. .
3:
1. Y X, :
2. SelectCase.
3.³ VisualBasic.
4. : , .
5. 䳿 :
PrivateSubCommand1_Click()
Dim Y AsVariant, X AsDouble
X = Val(Text1.Text)
SelectCase X
Case 0 To 1
Y = 5 * X * (X + 10)
Case 1 To 10
Y = 55 + Sin(3 * X)
CaseIs> 10
Y = 55 + Sin(3 * X) + (X - 10) / (X + 1)
CaseElse
Y = " "
EndSelect
Print "X="; X; " Y="; Y
EndSub
6. _10. .
Visual Basic :
1- - : File −>Save Form As −> : _10 __10_3_, .
2- : File −>Save Project As −> _10 __10_3_, .
7. .
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VisualBasic?
If VisualBasic?
IfVisualBasic?
䳿 Val?
SelectCase VisualBasic?
SelectCase ? .
Case 1 to 10 SelectCase?
Casels>10 SelectCase?
CaseElse SelectCase?
VisualBasic?
VisualBasic?
VisualBasic?
VisualBasic?
VisualBasic?
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VisualBasic?
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Label ᒺ VisualBasic?
Command ᒺ VisualBasic?
Text ᒺ VisualBasic?
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VisualBasic?
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11
: Visual Basic. , .
: Visual Basic .
1:
_11. Visual Basic. .
1. VisualBasic: −>−>Visual Basic−>VisualBasic 6.0.
2. , ᒺ:
- 5 Label1 Label5
- 3 Text1 Text3 ( a b, h
- Command1. Command1 , .
- Label5.
3. Caption , ForeColor .
4. ( Caption), .
5. ( Text), .
6. ᒺ ᒺ:
Label1 −> Text1
Label2 −> Text2
Label3 −> Text3
7. Command1 ( Caption), .
8. , .
Private Sub Command1_Click()
Dim a, b, Arg, Y, Krok, Sum As Double
a = Val(Text1.Text)
b = Val(Text2.Text)
Krok = Val(Text3.Text)
Arg = a
Sum = 0
Do While Arg<= b
Y = 7 * Arg + Abs(5 * Arg ^ 3 - 7 * Arg + 4) + _
(2 * Arg ^ 2 + 1) / (3 * Abs(Arg) + 5)
Sum = Sum + Y
Arg = Arg + Krok
Loop
Label5.Caption = Sum
EndSub
DoWhile...Loop.
!!!! ( ).
9. _11. .
Visual Basic :
1- - : File −>Save Form As −> : _11 __11_, .
2- : File −>Save Project As −> _10 __11_, .
10. , . , . ϳ Label5 . :
11. 䳿 :
Private Sub Command1_Click()
Dim a, b, Arg, Y, Krok, Sum As Double
a = Val(Text1.Text)
b = Val(Text2.Text)
Krok = Val(Text3.Text)
Arg = a
Sum = 0
Do While Arg<= b
Y = 7 * Arg + Abs(5 * Arg ^ 3 - 7 * Arg + 4) + _
(2 * Arg ^ 2 + 1) / (3 * Abs(Arg) + 5)
Print Y
Sum = Sum + Y
Arg = Arg + Krok
Loop
Label5.Caption = Sum
EndSub
PrintY Y.
. _11 __11_1_.
12. 䳿 :
Private Sub Command1_Click()
Dim a, b, Arg, Y, Krok, Sum As Double
a = Val(Text1.Text)
b = Val(Text2.Text)
Krok = Val(Text3.Text)
Arg = a
Sum = 0
Do While Arg<= b
Y = 7 * Arg + Abs(5 * Arg ^ 3 - 7 * Arg + 4) + _
(2 * Arg ^ 2 + 1) / (3 * Abs(Arg) + 5)
Form1.ForeColor = vbRed
Form1.Font.Italic = True
PrintY
Sum = Sum + Y
Arg = Arg + Krok
Loop
Label5.Caption = Sum
EndSub
Form1.ForeColor = vbRed Form1.Font.Italic = True ( , ). .
_11 __11_2_.
13. 䳿 ,
Do... Loop While:
Private Sub Command1_Click()
Dim a, b, Arg, Y, Krok, Sum As Double
a = Val(Text1.Text)
b = Val(Text2.Text)
Krok = Val(Text3.Text)
Arg = a
Sum = 0
Do
Y = 7 * Arg + Abs(5 * Arg ^ 3 - 7 * Arg + 4) + _
(2 * Arg ^ 2 + 1) / (3 * Abs(Arg) + 5)
Form1.ForeColor = vbRed
Form1.Font.Italic = True
PrintY
Sum = Sum + Y
Arg = Arg + Krok
Loop While Arg<= b
Label5.Caption = Sum
EndSub
.
_11 __11_3_.
14. 䳿 ,
DoUntil... Loop:
Private Sub Command1_Click()
Dim a, b, Arg, Y, Krok, Sum As Double
a = Val(Text1.Text)
b = Val(Text2.Text)
Krok = Val(Text3.Text)
Arg = a
Sum = 0
DoUntil Arg> b
Y = 7 * Arg + Abs(5 * Arg ^ 3 - 7 * Arg + 4) + _
(2 * Arg ^ 2 + 1) / (3 * Abs(Arg) + 5)
Form1.ForeColor = vbRed
Form1.Font.Italic = True
PrintY
Sum = Sum + Y
Arg = Arg + Krok
Loop
Label5.Caption = Sum
EndSub
.
_11 __11_4_.
15. 䳿 ,
Do... Loop Until:
Private Sub Command1_Click()
Dim a, b, Arg, Y, Krok, Sum As Double
a = Val(Text1.Text)
b = Val(Text2.Text)
Krok = Val(Text3.Text)
Arg = a
Sum = 0
Do
Y = 7 * Arg + Abs(5 * Arg ^ 3 - 7 * Arg + 4) + _
(2 * Arg ^ 2 + 1) / (3 * Abs(Arg) + 5)
Form1.ForeColor = vbRed
Form1.Font.Italic = True
PrintY
Sum = Sum + Y
Arg = Arg + Krok
Loop Until Arg> b
Label5.Caption = Sum
EndSub
. ?
_11 __11_5_.
16. 䳿 , :
Private Sub Command1_Click()
Dim a, b, Arg, Y, Krok, Sum As Double
a = Val(Text1.Text)
b = Val(Text2.Text)
Krok = Val(Text3.Text)
Arg = a
Sum = 0
Print "x", "Y"
Do
Y = 7 * Arg + Abs(5 * Arg ^ 3 - 7 * Arg + 4) + _
(2 * Arg ^ 2 + 1) / (3 * Abs(Arg) + 5)
Form1.ForeColor = vbRed
Form1.Font.Italic = True
PrintArg, Y
Sum = Sum + Y
Arg = Arg + Krok
Loop Until Arg> b
Label5.Caption = Sum
EndSub
. ?
_11 __11_6_.
2: [1;20].
.
1, 2. , . .
1. . 3 .
2. 䳿 . Do... Loop. Arg , . Dob . . :
PrivateSub Command1_Click()
Dim Arg!, Dob#
Arg! = 1
Dob# = 1 1 Dob, , !
DoUntil Arg! > 20
Dob# = Dob# * Arg!
Arg! = Arg! + 2
Loop
Label3.Caption = Dob#
EndSub
3. _11 __11_7_.
4. . .
:
VisualBasic?
, , ?
For... Next VisualBasic?
DoWhile... Loop VisualBasic?
Do... LoopWhile VisualBasic?
DoUntil... Loop VisualBasic?
DoWhile... Loop VisualBasic?
Exit?
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Function Sub?
12
: MSExcel. . . .
: . . .
_12. _12_1 _12_2 :
__12_1_ __12_2_, MS Excel. .
1. MS Excel:
1.1 5 3 7 2 200;
1.2 12 46 3 10 300;
1.3 ³ 82 36, 4 5 40000;
1.4 17 5 , 4782 39, 31.
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3: :
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13,00 | |||||
24,00 | |||||
27,40 | |||||
47,20 | |||||
68,70 | |||||
98,10 | |||||
27,00 | |||||
51,40 | |||||
78,00 | |||||
49,30 | |||||
29,00 | |||||
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