WHILE in Scol » History » Version 2
iri, 09/24/2012 11:59 PM
| 1 | 1 | iri | h1. WHILE in Scol |
|---|---|---|---|
| 2 | |||
| 3 | *while* <condition> *do* instructions |
||
| 4 | |||
| 5 | <pre> |
||
| 6 | while <condition> do |
||
| 7 | ( |
||
| 8 | instruction_1; |
||
| 9 | instruction_2; |
||
| 10 | instruction_3; |
||
| 11 | |||
| 12 | instruction_n; |
||
| 13 | ); |
||
| 14 | </pre> |
||
| 15 | |||
| 16 | If the condition is false at the start, the instructions block is never ran. |
||
| 17 | |||
| 18 | Example : |
||
| 19 | <pre> |
||
| 20 | fun main ()= |
||
| 21 | _showconsole; |
||
| 22 | |||
| 23 | let 10 -> counter in |
||
| 24 | while (counter >= 0) do |
||
| 25 | ( |
||
| 26 | _fooId counter; |
||
| 27 | 2 | iri | // do not forget to increase or decrease your counter, otherwise, the loop can become infinite |
| 28 | set counter = counter-1 |
||
| 29 | 1 | iri | ); |
| 30 | 0;; |
||
| 31 | </pre> |
||
| 32 | |||
| 33 | |||
| 34 | License : "CC-BY-SA-2.0":https://creativecommons.org/licenses/by-sa/2.0/ |
||
| 35 | Tutorial by iri |
||
| 36 | Updated by / |