Difference between revisions of "Control:For"
| Line 18: | Line 18: | ||
Continue is used to immediately skip ''to'' the end of the loop, where the repeat condition is checked and may loop again if the condition is met. | Continue is used to immediately skip ''to'' the end of the loop, where the repeat condition is checked and may loop again if the condition is met. | ||
| − | == | + | === Example 1: For === |
| − | + | variable int Count | |
| + | for (Count:Set[0] ; ${Count}<=10 ; Count:Inc) | ||
| + | echo ${Count} | ||
| + | |||
| + | == Example 1 output == | ||
| + | Example 1 produces the following output: | ||
1 | 1 | ||
2 | 2 | ||
| Line 30: | Line 35: | ||
9 | 9 | ||
10 | 10 | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
=== Example 2: Continue === | === Example 2: Continue === | ||
| Line 46: | Line 46: | ||
} | } | ||
| − | === Example 4: Break === | + | == Example 2 output == |
| + | Example 2 produces the following output: | ||
| + | 0 | ||
| + | 2 | ||
| + | 4 | ||
| + | 6 | ||
| + | 8 | ||
| + | 10 | ||
| + | |||
| + | === Example 3: Break === | ||
variable int Count | variable int Count | ||
for (Count:Set[0] ; ${Count}<=10 ; Count:Inc) | for (Count:Set[0] ; ${Count}<=10 ; Count:Inc) | ||
| Line 56: | Line 65: | ||
} | } | ||
echo Done. Session[${Count}] is ${Session[${Count}]} | echo Done. Session[${Count}] is ${Session[${Count}]} | ||
| + | |||
| + | == Example 3 output == | ||
| + | Example 3 produces the following output: | ||
| + | Done. Session[0] is FALSE | ||
== See Also == | == See Also == | ||
Latest revision as of 10:03, 31 January 2008
Contents
Basic Information
Forms
For
for (<start command> ; <formula> ; <iterate command>) <command or code block>
- or -
for (<formula> ; <iterate command>) <command or code block>
A for loop will repeat the given command or code block while the formula given evaluates to non-zero. The formula is checked at the start, and then after each time the command or code block executes. The start command is executed before the first check of the formula, and the iterate command is executed before each successive check of the formula. These will typically initialize a count variable and increment the count variable, respectively.
Break
break
Break is used to immediately abort from the current loop, and continue execution outside of the loop. See also: Break for Switches
Continue
continue
Continue is used to immediately skip to the end of the loop, where the repeat condition is checked and may loop again if the condition is met.
Example 1: For
variable int Count
for (Count:Set[0] ; ${Count}<=10 ; Count:Inc)
echo ${Count}
Example 1 output
Example 1 produces the following output:
1 2 3 4 5 6 7 8 9 10
Example 2: Continue
variable int Count
for (Count:Set[0] ; ${Count}<=10 ; Count:Inc)
{
; skip if Count is odd
if ${Count}%2==1
continue
echo ${Count}
}
Example 2 output
Example 2 produces the following output:
0 2 4 6 8 10
Example 3: Break
variable int Count
for (Count:Set[0] ; ${Count}<=10 ; Count:Inc)
{
; Break early if session number ${Count} exists
if ${Session[${Count}](exists)}
break
echo ${Count}
}
echo Done. Session[${Count}] is ${Session[${Count}]}
Example 3 output
Example 3 produces the following output:
Done. Session[0] is FALSE
