关于ActionScript 1.0、ActionScript 2.0、java的区别与联系——基于一个实例的讨论
问题：创建两个位置大小颜色各不同的可拖拽的矩形。
方法一：method1.fla //ActionScript 1.0
//Flash Player 6（含）以上
//ActionScript 1.0或ActionScript 2.0均可
createEmptyMovieClip ("rectangle1_mc", 1);rectangle1_mc._x = 10;rectangle1_mc._y = 10;with (rectangle1_mc) {beginFill (0xff0000, 100);moveTo (0, 0);lineTo (200, 0);lineTo (200, 200);lineTo (0, 200);endFill ();}rectangle1_mc.onPress = startDrag;rectangle1_mc.onRelease = rectangle1_mc.onReleaseOutside = stopDrag;//createEmptyMovieClip ("rectangle2_mc", 2);rectangle2_mc._x = 50;rectangle2_mc._y = 50;with (rectangle2_mc) {beginFill (0xffcc00, 100);moveTo (0, 0);lineTo (400, 0);lineTo (400, 100);lineTo (0, 100);endFill ();}rectangle2_mc.onPress = startDrag;rectangle2_mc.onRelease = rectangle2_mc.onReleaseOutside = stopDrag;
方法二：method2.fla //ActionScript 2.0
//Flash Player 6（含）以上
//必须为ActionScript 2.0
var rect1:Rectangle = new Rectangle (this, 10, 10, 200, 200, 0xff0000, 1);var rect2:Rectangle = new Rectangle (this, 50, 50, 400, 100, 0xffcc00, 2);delete rect1;delete rect2;delete Rectangle;
此方法必须得有一个Rectangle.as与之同路径。Rectangle.as内容如下：
class Rectangle extends MovieClip { private var rectangle_mc:MovieClip; public function Rectangle (target:MovieClip, x:Number, y:Number, w:Number, h:Number, color:Number, depth:Number) { rectangle_mc = target.createEmptyMovieClip ("rectangle_mc" + depth, depth); rectangle_mc._x = x; rectangle_mc._y = y; with (rectangle_mc) { beginFill (color, 100); moveTo (0, 0); lineTo (w, 0); lineTo (w, h); lineTo (0, h); endFill (); } rectangle_mc.onPress = startDrag; rectangle_mc.onRelease = rectangle_mc.onReleaseOutside = stopDrag; }}
方法三：method3.java //如果.java也可以直接编译.swf的话
public class method3{ public static void main(String[] args){ Rectangle rect1 = new Rectangle (this, 10, 10, 200, 200, 0xff0000, 1); Rectangle rect2 = new Rectangle (this, 50, 50, 400, 100, 0xffcc00, 2); //这里就不需要手动delete了，因为java有垃圾回收器，它会自动清除。 }}class Rectangle extends MovieClip { private MovieClip rectangle_mc; public Rectangle (MovieClip target, Double x, Double y, Double w, Double h, Double color, Double depth) { rectangle_mc = target.createEmptyMovieClip ("rectangle_mc" + depth, depth); rectangle_mc._x = x; rectangle_mc._y = y; with (rectangle_mc) { beginFill (color, 100); moveTo (0, 0); lineTo (w, 0); lineTo (w, h); lineTo (0, h); endFill (); } rectangle_mc.onPress = startDrag; rectangle_mc.onRelease = rectangle_mc.onReleaseOutside = stopDrag; }}
通过比较不难发现，ActionScript 1.0最灵活、最简单、最容易理解。但重复类似的操作时也会最繁琐。如果要画1000个位置大小颜色各不同的矩形的话，不累死也会被笑死! ActionScript 2.0则非常系统，单独用Rectangle.as定义了一个矩形类，使用时new即可，爽!有点小小的遗憾的是有几行delete，当然你也可以不加，让它永远霸占你的内存。再看看java，看完了又看，看完了再看，呵呵! 啥也不说了，谁老大肯定有人知道。
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