в 09:19, 26 мая 2010

2010-05-26T09:19:12Z

Admin: 1 версия

2010-05-26T08:14:47Z

1 версия

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==Adding a break statement to switch statement==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var myVariable:Number = 6;

switch(myVariable){
case 10:
trace("10");
break;
case 6:
trace("6");
break;
case 1:
trace("1");
}

}
}
}
6
</source>

==Adding a default statement==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var myVariable:Number = 6;

switch(myVariable){
case 10:
trace("10");
break;
case 6:
trace("6");
break;
case 1:
trace("1");
break;
default:
trace("none of the cases were met");
}

}
}
}
</source>

==switch statement executes one of several possible code blocks based on the value of a single test expression==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var greeting;

var language = "english";

switch (language) {
case "english":
greeting = "Hello";
break;

case "japanese":
greeting = "Konnichiwa";
break;

case "french":
greeting = "Bonjour";
break;

case "german":
greeting = "Guten tag";
break;

default:
// Code here (not shown) would display an error message indicating
// that the language was not set properly
}
trace(greeting);
}
}
}
</source>

==The general form of a switch statement==



<source lang="java">

switch (testExpression) {
case caseExpression:
// case body
case caseExpression:
// case body
default:
// case body
}

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var animalName:String = "dove";
switch (animalName) {
case "turtle":
trace("Yay! "Turtle" is the correct answer.");
case "dove":
trace("Sorry, a dove is a bird, not a reptile.");
default:
trace("Sorry, try again.");
}
}
}
}
</source>

==The switch statement is useful when performing the same action for one of several matching possibilities.==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){

var animalName:String = "dove";

switch (animalName) {
case "turtle":
case "iguana":
trace("Yay! You named a reptile.");
break;
case "dove":
case "cardinal":
trace("Sorry, you specified a bird, not a reptile.");
break;
default:
trace("Sorry, try again.");
}
}
}
}
</source>

==Working with the switch Statement==



<source lang="java">

//The basic structure of a switch statement is:
/*
switch(expression){
case testExpression:
statement;
[case testExpression2:
statement;
default:
statement;]
}
*/
package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var myVariable:Number = 6;
switch(myVariable){
case 10:
trace("10");
case 6:
trace("6");
case 1:
trace("1");
}
}
}
}
6
1
</source>

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Flash / Flex / ActionScript/Statement/switch - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия