مستندات جامباس

تحذير! هذه الصفحة لم يتم ترجمتها. See english version

FOR

FOR Variable = Expression { TO | DOWNTO } Expression [ STEP Expression ]
   ...
NEXT

Repeats a loop while incrementing or decrementing a المتغير.

The loop variable must be:

Numeric, i.e. a Byte, a Short, an Integer, a Long or a Float number.
A local variable.

If DOWNTO is used instead of TO, then the increment step is reversed.

If the initial expression is higher than the final expression (for positive STEP values), or if the initial expression is less than the final expression (for negative ones) the loop will not be executed at all.

مثال

DIM iCount AS Integer

FOR iCount = 1 TO 20 STEP 3
PRINT iCount;;
NEXT
-
1 4 7 10 13 16 19

FOR iCount = 10 DOWNTO 1
PRINT iCount;;
NEXT
10 9 8 7 6 5 4 3 2 1

FOR iCount = 10 DOWNTO 1 STEP 3
PRINT iCount;;
NEXT
10 7 4 1

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Loop Control Structures