Do...Loop Statement
Repeats the statements between the Do and the Loop statement while the condition is True or until the condition becomes True.
Синтакса
Do [{While | Until} condition = True]
statement block
[Exit Do]
statement block
Јамка
or
Направи
statement block
[Exit Do]
statement block
Loop [{While | Until} condition = True]
Parameters/Elements
Condition: A comparison, numeric or string expression, that evaluates either True or False.
Statement block: Statements that you want to repeat while or until the condition is True.
The Do...Loop statement executes a loop as long as, or until, a certain condition is True. The condition for exiting the loop must be entered following either the Do or the Loop statement. The following examples are valid combinations:
Синтакса
Do While condition = True
...statement block
Јамка
The statement block between the Do While and the Loop statements is repeated so long as the condition is true.
Do Until condition = True
...statement block
Јамка
The statement block between the Do Until and the Loop statements is repeated if the condition so long as the condition is false.
Направи
...statement block
Loop While condition = True
The statement block between the Do and the Loop statements repeats so long as the condition is true.
Направи
...statement block
Loop Until condition = True
The statement block between the Do and the Loop statements repeats until the condition is true.
Use the Exit Do statement to unconditionally end the loop. You can add this statement anywhere in a Do...Loop statement. You can also define an exit condition using the If...Then structure as follows:
Do...
statements
If condition = True Then Exit Do
statements
Јамка...
Пример
Sub ExampleDoLoop
Dim sFile As String
Dim sPath As String
sPath = "c:\"
sFile = Dir$( sPath ,22)
If sFile <> "" Then
Do
MsgBox sFile
sFile = Dir$
Loop Until sFile = ""
End If
End Sub