ملخص البرمجة المرئية - الوحدة الثالثة كلية التكنولوجيا والعلوم التطبيقية جامعة القدس المفتوحة

2. 2.VB6
VB6VB6
1.VB6
)i(Integer(:
....-3, -2, -1,0,1,2,3...{=Z
2VB63576835767
)iiByte(:255.
)iiiLong(:2,147,483,6482,147,483,6484

4. 2.VB6
)ivDecimal(:
4
(1Single:)4Single Precision
(2)Double:)8Double Precision
String)
NumeralsLettersSpecial CharactersCharacter1VB6Fixed LengthString)

5. 2.VB6
•Date:)
•81001st – JanuaryDecember 31st 9999VB6#October 28, 1950#.
•) ‫ةةةةةةة‬ ‫ةةةةةة‬ (‫)ة‬Object:(
•8
•Variant:)
•16VB6Variant

6. •VB6VB6
•201- ,25,1.495- ,2.058
•
•"Welcome" , “AL-Quds Open University", "LQ20"

7. 3Variables
:
12ABC
*sum
-b10
Ab.c
Valid Name Invalid Name
My_Car My.Car
ThisYear 1NewBoy
Long_Name_Can_beUSE
He&HisFather *& is not
acceptable

10. VB6
Dim VariableName As DataType
Dim VariableName1 As DataType1, VariableName2 As DataType2
Dim password As String
Dim yourName As String
Dim firstnum As Integer
Dim secondnum As Integer
Dim total As Integer
Dim doDate As Date
Dim password As String, yourName As String, firstnum As Integer

11. Static:Static VariablesFormModuleClassStatic
Private:General VariablesForm
Public:General Variables

13. VB
•
Value = 10 ' = ‫ةةةة‬10 Value ‫ةةة‬
‫ةةةةةةة‬ ‫ةةةةةة‬
Text1.Text = Valu '‫ةة‬ ‫ةةةةةة‬ ‫ةةة‬ ‫ة‬
‫ةةةةةةة‬ ‫ةةة‬ ‫ةةةةة‬
Dim
Dim Value As Integer
Option Explicit

14. •Option Explicit 'in Declarations section
Private Sub Command1_Click()
Dim n As Integer 'You must declare n, otherwise
n = 20 'it will show error
Print n + 1
End Sub

16. Constant:

17. Constants are different from variables in the sense
that their values do not change during the
running of the program.
Const Constant Name As Data Type = Value
• Const Pi As Single=3.142
• Const Temp As Single=37
• Const Score As Single=100

19. •Arithmetic OperationLogical Operation56

20. )Logical Operation(:

21. :
•
4*W^2+ 5/n*m
X+5*Y-20
)4*d – )3*y – 20)) + b^3
)x+ 2*y) / num

22. 7Simple

23. Compound
•CompoundConnector8VB6

24. •TTrueFFalseP , Q

25. Compound

26. VB6,
•Concatenation
•FunctionsReturn

27. •11

28. Assignment Statement
Variable Name = Expression
•
X = 2 * Y + 3 * Z – 25
SUM= SUM + a * b
Name $ = “Palestine”
K% = 100

29. 7Statement Comment
•.
Single Quote‘

30. Immediate Window
•VB6Standard.EXEImmediateViewCtrlG
•VB6Enter

31. Immediate Window

32. Print and Format

35. Private Sub cmdEnterValues_Click)(
a = Val)InputBox)"Enter the value of a", "Input value"((
b = Val)InputBox)"Enter the value of b", "Input value"((
MsgBox "The sum is " & a + b, vbInformation, "Output"
End Sub

36. •

38. Dim firstName As String
Dim secondName As String
Dim yourName As String
Private Sub Command1_Click)(
firstName = Text1.Text
secondName = Text2.Text
yourName = secondName + " " + firstName
Label1.Caption = yourName
End Sub

39. Dim number1, number2, number3 as Integer
Dim total, average as variant
Private sub Form_Click
number1=val)Text1.Text(
number2=val)Text2.Text(
number3= val)Text3.Text(
Total=number1+number2+number3
Average=Total/3
Label1.Caption=Total
Label2.Caption=Average
End Sub

40. •