While...Wend
The While…Wend instructions are used to execute a series of statements in a loop as long as a given condition is true. See also Do...Loop.
Syntax
While Condition
[StatementBlock]
Wend
Example
This example creates a While...Wend that is exited only if Reply is within a range.
Public
Reply
'Declare variable.
BeginProg
While Reply < 90
Reply = Reply + 1
Wend
EndProg
Remarks
While…Wend loops can be nested.
Parameters
While
The While statement begins the While...Wend loop control structure.
Condition
The Condition is any expression that can be evaluated True (nonzero) or False (0 and Null). If Condition is true, all statements in StatementBlock are executed until the Wend statement is encountered. Control then returns to the While statement and Condition is again checked. If Condition is still true, the process is repeated. If Condition it is not True, execution resumes with the statement following the Wend statement.
StatementBlock
The StatementBlock is the portion of the program that should be repeated until the loop is terminated. These instructions lie between the While and Wend statements.
Wend
The Wend statement ends the While...Wend control structure.
NOTE: The Do...Loop instruction provides more structure and a more flexible way to perform looping.