Do...Loop Statement

Repeats the statements between the Do and the Loop statement while the condition is True or until the condition becomes True.

Syntax:

Do statement


  Do {While | Until} condition = True
  ' Do While: The statement block is repeated as long as the condition is true
  ' Do Until: The statement block is repeated as long as the condition is false
     statements
     [Exit Do]
     statements
  Loop

Do...Loop statement


  Do
     statements
     [Exit Do]
     statements
  ' Loop While: The statement block repeats as long as the condition is true
  ' Loop Until: The statement block repeats until the condition is true
  Loop {While | Until} condition = True

Parameters:

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 above examples are valid combinations.

condition: A comparison, numeric or Basic expression, that evaluates to either True or False.

statements: Statements that you want to repeat while or until a condition is True.

Π˜Π½ΡΡ‚Ρ€ΡƒΠΊΡ†ΠΈΡ Exit Do ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ΡΡ для бСзусловного Π·Π°Π²Π΅Ρ€ΡˆΠ΅Π½ΠΈΡ Ρ†ΠΈΠΊΠ»Π°. Π­Ρ‚Ρƒ ΠΈΠ½ΡΡ‚Ρ€ΡƒΠΊΡ†ΠΈΡŽ ΠΌΠΎΠΆΠ½ΠΎ Π΄ΠΎΠ±Π°Π²Π»ΡΡ‚ΡŒ Π² любоС мСсто инструкции Do...Loop. Π’Π°ΠΊΠΆΠ΅ ΠΌΠΎΠΆΠ½ΠΎ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΠΈΡ‚ΡŒ условиС Π²Ρ‹Ρ…ΠΎΠ΄Π°, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΡ структуру If...Then ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ:


  Do...
     statements
     If condition = True Then Exit Do
     statements
  Loop...

Example:


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

For, Select Case or While statements

Iif or Switch functions