第 20 章

20-1 20-2 20-3 20-4 20-5 Flash

20-1 , , ... ( 20-2 ), , Flash , , Flash , , ,

ActionScript , var Flash, , , Flash ,

, (), , , ( Java C...) ActionScript

varvar , /,

var

var

ActionScript , Flash Unicode (), Flash , (JavaScriptASPPHP...) , _ () ,

ActionScript (playstopgoto...), (truefalse), my , , myComputer, myPlay,

, carCARCar, , , myScore, a1a2x ...,

set variableset variable , /,

set variable

set variable

ActionScript 3 , (function ) ,

, , , (20-5 ), , ,

trace myVar1 10 , myVar2 undefined (), myVar2 , testVar

Flash , () ,

, (),

, Actions , ActionScript , [Ctrl] + [Enter]

, , , , ,

20-2 ActionScript () , Nullundefined,

" "' ', , ,

typeof (/) , myData

String,

().-

, true (), false (),

10

NullNull , null, , , , ...

undefinedundefined , undefined, undefined (), , undefined

ActionScript , (Properties) (Method), fish X , myVar

ActionScript , Flash ActionScript , , ,

ActionScript , , Flash , ,

20-3 , , ActionScript , , , =, ActionScript , , =

Flash , 3

20-4 , , / / , if ,

if if true , , false , if , , , , ( true false), if

if

if

Flash , Flash , , goto 5 , 1 goto 3 , 3 1

Flash , 5 , ,

20-5 Flash ActionScript () , (), , ActionScript , Flash , Flash , , ActionScript

Flash 19 , Flash stop goto /, ,

Flash , ActioinScript (19-4 ) Flash , Flash , ActionScript

Flash , , Flash (level) _root, 19-4 19-02.fla , ,

_root, _level0 _level0 ( 0 ), _level1_level2 loadMovie (//) Flash (.swf) , .swf

Flash , , .swf ( _level0),

, _root, _level1 _root.stop();, , _level1 level0 _level0.stop(); , _level0

6 , () ActionScript , , (depth) ( Z , ),

duplicateMovieClip attachMovie , , , swapDepths , Flash

, 1 ,

ActionScript , , ActionScript ActionScript 2.0 //MovieClip/ gotoAndStop

, , , loadMovie , ActionScript .swf , , , ,