Flash Lite 2 
Flash Lite 2 |
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| Flash Lite 2.x ActionScript Language Reference > ActionScript language elements > Statements > switch statement | |||
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switch (expression){caseClause: [defaultClause:] }
Creates a branching structure for ActionScript statements. As with the if statement, the switch statement tests a condition and executes statements if the condition returns a value oftrue. All switch statements should include a default case. The default case should include a break statement that prevents a fall-through error if another case is added later. When a case falls through, it doesn't have a break statement.
Availability: ActionScript 1.0; Flash Lite 1.0
expression - Any expression.
In the following example, if the String.fromCharCode(Key.getAscii()) parameter evaluates to A, the trace() statement that follows case "A" executes; if the parameter evaluates to a, the trace() statement that follows case "a"executes; and so on. If no case expression matches the String.fromCharCode(Key.getAscii()) parameter, the trace() statement that follows the default keyword executes.
var listenerObj:Object = new Object();
listenerObj.onKeyDown = function() {
switch (String.fromCharCode(Key.getAscii())) {
case "A" :
trace("you pressed A");
break;
case "a" :
trace("you pressed a");
break;
case "E" :
case "e" :
trace("you pressed E or e");
break;
case "I" :
case "i" :
trace("you pressed I or i");
break;
default :
trace("you pressed some other key");
break;
}
};
Key.addListener(listenerObj);