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DO...LOOP Statement Details
 
Syntax 1
  DO [{WHILE | UNTIL} booleanexpression]
    [statementblock]
  LOOP
 
Syntax 2
  DO
    [statementblock]
  LOOP [{WHILE | UNTIL} booleanexpression]
 
  Argument            Description
 
  statementblock      One or more BASIC statements to be repeated
 
  booleanexpression   Any expression that evaluates to true (nonzero)
                      or false (zero)
 
You can use a DO...LOOP statement instead of a WHILE...WEND
statement. The DO...LOOP is more versatile because it can test
for a condition at the beginning or at the end of a loop.