Difference between revisions of "FOR"
Helengeorge (Talk | contribs) |
Barrymavin (Talk | contribs) (→Products) |
||
| Line 46: | Line 46: | ||
[[Category:Applications]] | [[Category:Applications]] | ||
[[Category:Applications Commands]] | [[Category:Applications Commands]] | ||
| + | [[Category:Looping Commands]] | ||
Revision as of 09:15, 30 November 2009
Contents
Purpose
Processes a list of commands in a loop for a specified number of times
Syntax
FOR <memvar> = <exp1> TO <exp2>
[STEP <expN1>]
[EXIT]
[LOOP]
NEXT
See Also
Description
The FOR ... NEXT command repeats the commands between the FOR and the NEXT statement. The <exp1> specifies the loop start point and <exp2> the loop end point. <exp1> and <exp2> may be integer or date values. The FOR...NEXT command is equivalent to a counter based DO WHILE ... ENDDO set of commands but FOR ... NEXT is faster.
STEP <expN>
If the optional STEP <expN1>, is specified, then the FOR ... NEXT loop will increment by <expN1>. This value can be a positive or negative number. If <expN1> is not specified then the FOR ... NEXT loop will increment by 1.
EXIT
The looping will continue until either <expN2> is reached or an EXIT command is encountered.
LOOP
If a LOOP command is encountered, then control returns to the start of the FOR ... NEXT loop.
Example
for i = 1 to 10 step 2 ?i*2 next
Products
Recital Server, Recital
