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8.3.4 Do...Loop Statement

Repeats a block of statements while a condition is True or until a condition becomes True.
 

Syntax

Do [{While | Until} condition]

[statements]

[Exit Do]

[statements]

Loop

Or, you can use this syntax:
 

Do

[statements]

[Exit Do]

[statements]

Loop [{While | Until} condition]

condition
A numeric or string expression that is True or False. If condition is Null, condition is treated as False.
statements
One or more statements that are repeated while or until condition is True.

Remarks

The Exit statement can only be used within a Do...Loop control structure to provide an alternate way to exit a Do...Loop. Any number of Exit Do statements may be placed anywhere in the Do...Loop. Often used with the evaluation of some condition (for example, If...Then...Else), Exit Do transfers control to the statement immediately following the Loop.
 
When used within nested Do...Loop statements, Exit Do transfers control to the loop that is one nested level above the loop where it occurs.
 

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