Specifies a character string identifying each while statement. The label allows an endloop or continue statement to break out of a nested series of while or for statements to a specified level. The label precedes the while keyword and is followed by a colon. It must be a unique alphanumeric identifier and not a keyword.

See Condition (see Condition).

This condition is tested to determine if statementlist is executed.

See StatementList (see StatementList).