UniBasic Commands Reference - Rocket Software

In the following example, the program segment prints the string 10,8,6,4,2,. The loop
terminates before printing 0 because the FOR/NEXT statement specifies that when
the variable I falls below 1, the loop terminates.
FOR I = 10 TO 1 STEP -2
PRINT I:",":
NEXT I
In the next example, the optional WHILE expression clause creates a secondary
condition for the termination of the FOR/NEXT structure. While a normal
FOR/NEXT loop repeats the contained statements 10 times, the WHILE clause
results in this example stopping after only three repetitions. This occurs because the
value read from the DATA statement by the INPUT command exceeds the value of I
on the third iteration. The WHILE clause with the same statements results in the loop
terminating after one iteration. After the iteration, I is less than K, satisfying the
condition and causing the loop to stop.
K=50
DATA 3,4,2,51,8,10,15,3,2,8
FOR I = 1 TO 10 WHILE I < K
INPUT K
PRINT I,K
NEXT I
Related Commands
UniBasic
CASE, LOOP/REPEAT
FOR/NEXT 1-277