三角函数与Flash图形动画

1、三角函数与Flash图形动画吴占鹏（信箱：wzp1231999，电话利用正弦和余弦三角函数的周期变化及加、减、乘的运算，形成叠加、加倍、交叉、插入等效果，可以生成各种样式的图形。1. 叠加波一：。var mc:Sprite= addChild(new Sprite() as Sprite,p:Number=Math.PI/90;mc.graphics.lineStyle(2,0xff0000),mc.graphics.moveTo(0,80);for (var i:int=0; i<550; i+) mc.graphics.lineTo(i,80+20*Math

2、.sin(i*p);mc.graphics.lineStyle(2,0x00ff00),mc.graphics.moveTo(0,160);for (i=0; i<550; i+) mc.graphics.lineTo(i,160+20*Math.sin(i*p);mc.graphics.lineStyle(2,0x0000ff),mc.graphics.moveTo(0,250);for (i=0; i<550; i+) mc.graphics.lineTo(i,240+10*Math.sin(i*3*p)+30*Math.sin(i*p);-2叠加波二 ：var mc:Spri

3、te= addChild(new Sprite() as Sprite;var p:Number=Math.PI/90;mc.graphics.lineStyle(2,0xff0000),mc.graphics.moveTo(0,80)for(var i:int=0;i<550;i+) mc.graphics.lineTo(i,80+20*Math.cos(i*p)mc.graphics.lineStyle(2,0x00ff00),mc.graphics.moveTo(0,160)for(i=0;i<550;i+) mc.graphics.lineTo(i,160+20*Math.

4、cos(i*3*p)mc.graphics.lineStyle(2,0x0000ff),mc.graphics.moveTo(0,250)for(i=0;i<550;i+) mc.graphics.lineTo(i,240+10*Math.cos(i*3*p)+30*Math.cos(i*p)3叠加波三：var mc:Sprite= addChild(new Sprite() as Sprite;var p:Number=Math.PI/90;mc.graphics.lineStyle(2,0xff0000),mc.graphics.moveTo(0,100)for(var i:int=

5、0;i<550;i+) mc.graphics.lineTo(i,80+20*Math.cos(i*p)mc.graphics.lineStyle(2,0x00ff00),mc.graphics.moveTo(0,180) for(i=0;i<550;i+) mc.graphics.lineTo(i,160+20*Math.cos(i*2*p)mc.graphics.lineStyle(2,0x0000ff),mc.graphics.moveTo(0,270)for(i=0;i<550;i+) mc.graphics.lineTo(i,240+10*Math.cos(i*2*

6、p)+20*Math.cos(i*p) -4叠加波四：var mc:Sprite= addChild(new Sprite() as Sprite;var p:Number=Math.PI/90;mc.graphics.lineStyle(2,0xff0000),mc.graphics.moveTo(0,80) for(var i:int=0;i<550;i+) mc.graphics.lineTo(i,80+20*Math.sin(i*p)mc.graphics.lineStyle(2,0x00ff00),mc.graphics.moveTo(0,160)for(i=0;i<55

7、0;i+) mc.graphics.lineTo(i,160+20*Math.sin(i*2*p)mc.graphics.lineStyle(2,0x0000ff),mc.graphics.moveTo(0,250)for(i=0;i<550;i+) mc.graphics.lineTo(i,240+15*Math.sin(i*2*p)+30*Math.sin(i*p)5. 叠加波五：var mc:Sprite= addChild(new Sprite() as Sprite;var p:Number=Math.PI/90;mc.graphics.lineStyle(2,0xff0000

8、),mc.graphics.moveTo(0,100)for(var i:int=0;i<550;i+) mc.graphics.lineTo(i,80+20*Math.cos(i*p)mc.graphics.lineStyle(2,0x00ff00),mc.graphics.moveTo(0,180)for(i=0;i<550;i+) mc.graphics.lineTo(i,160+20*Math.cos(i*2*p)mc.graphics.lineStyle(2,0x0000ff),mc.graphics.moveTo(0,260) for(i=0;i<550;i+)

9、mc.graphics.lineTo(i,240+10*Math.sin(i*2*p)+20*Math.cos(i*p)6.强制滤波：var mc:Sprite= addChild(new Sprite() as Sprite;var p:Number=Math.PI/90,j:Number;mc.graphics.lineStyle(2,0xff0000),mc.graphics.moveTo(0,185)for(var i:int=0;i<550;i+) Math.sin(i*p)+0.5<0?j=0:Math.sin(i*p)+0.5>1?j=1:j=Math.sin(

10、i*p)+0.5; mc.graphics.lineTo(i,160+j*50)mc.graphics.lineStyle(2,0x00ff00),mc.graphics.moveTo(0,180)for(i=0;i<550;i+) Math.sin(i+60)*p)+0.5<0?j=0:Math.sin(i+60)*p)+0.5>1?j=1:j=Math.sin(i+60)*p)+0.5;mc.graphics.lineTo(i,160+j*50)mc.graphics.lineStyle(2,0x0000ff),mc.graphics.moveTo(0,210)for(i

11、=0;i<550;i+) Math.sin(i+120)*p)+0.5<0?j=0:Math.sin(i+120)*p)+0.5>1?j=1:j=Math.sin(i+120)*p)+0.5;mc.graphics.lineTo(i,160+j*50)加倍效果利用正弦三角函数三倍周期叠加，实现环形波上下平滑；利用小数倍实现波插入效果。var sp:Sprite=addChild(new Sprite() as Sprite;sp.x=275,sp.z=0,sp.y=-200;var mc:Sprite=sp.addChild(new Sprite() as Sprite;va

12、r t:uint=0,f:Number=800,p:Number=Math.PI/60var x1:Number=120,z1:Number=0,y1:Number=400;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(x1*f/(f+z1),y1*f/(f+z1);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=120*Math.cos(t*p);z1=120*Math.sin(t*p);y1=400-12*(5*Math.sin(t*(2+1/5)*p)+Mat

13、h.sin(t*3*(2+1/5)*p);mc.graphics.lineTo(x1*f/(f+z1),y1*f/(f+z1);t<960?t=t+1:removeEventListener(Event.ENTER_FRAME,fff);/周期=60*2*5，插入次数=5。var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/90;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(200,320

14、);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+40*Math.sin(t*p)*(2+Math.cos(t*5*p);y1=200+40*Math.cos(t*p)*(2+Math.cos(t*5*p);mc.graphics.lineTo(x1,y1);t<180?t=t+1:removeEventListener(Event.ENTER_FRAME,fff)利用余弦三角函数三倍或余弦+二倍正弦周期叠加中间平滑，实现盆底部边缘效果。var sp:Sprite=addChild(new Sprite()

15、as Sprite;sp.x=275,sp.z=0,sp.y=-200;var mc:Sprite=sp.addChild(new Sprite() as Sprite;var t:uint=0,f:Number=800,p:Number=Math.PI/60var x1:Number=200,z1:Number=0,y1:Number=392;var v:Number,u:Number,w:Number;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(x1*f/(f+z1),y1*f/(f+z1);addEventListener(E

16、vent.ENTER_FRAME,fff);function fff(e) u=3*Math.cos(t*9.375*p)+8*Math.cos(t*3.125*p); u<0?v=0:u>9?v=9:v=u;u>9?w=9:w=u;x1=10*Math.cos(t*p)*(11+w)z1=10*Math.sin(t*p)*(11+w)y1=500-12*vmc.graphics.lineTo(x1*f/(f+z1),y1*f/(f+z1);t<960?t=t+1:removeEventListener(Event.ENTER_FRAME,fff);var sp:Spr

17、ite=addChild(new Sprite() as Sprite;sp.x=275,sp.z=0,sp.y=-100;var mc:Sprite=sp.addChild(new Sprite() as Sprite;var t:uint=0,f:Number=600,p:Number=Math.PI;var x1:Number,z1:Number,y1:Number,v:Number,u:Number;mc.graphics.lineStyle(3,0xff0000);mc.graphics.moveTo(144,343);addEventListener(Event.ENTER_FRA

18、ME,fff);function fff(e) u=Math.sin(t*p/7)+1.9*Math.cos(t*p/14)u<0?v=0:v=u;x1=30*Math.cos(t*p/54)*(2.9+u)z1=30*Math.sin(t*p/54)*(2.9+u)y1=400-30*v;mc.graphics.lineTo(x1*f/(f+z1),y1*f/(f+z1);t+;if (t>756) removeEventListener(Event.ENTER_FRAME,fff);5圆角多边形var sp:Sprite=addChild(new Sprite() as Spr

19、ite;var x1:Number,y1:Number,i:int,p:Number=Math.PI/36;sp.graphics.lineStyle(2,0xff0000),sp.graphics.moveTo(150,165);for(i=0;i<73;i+) x1=100+50*Math.cos(i*p)+15*Math.sin(i*2*p);y1=150+50*Math.sin(i*p)+15*Math.cos(i*2*p)sp.graphics.lineTo(x1,y1);sp.graphics.lineStyle(2,0x00ff00),sp.graphics.moveTo(

20、280,142);for(i=0;i<73;i+) x1=230+50*Math.cos(i*p)+12*Math.sin(i*3*p);y1=130+50*Math.sin(i*p)+12*Math.cos(i*3*p)sp.graphics.lineTo(x1,y1);sp.graphics.lineStyle(2,0x0000ff),sp.graphics.moveTo(410,138);for(i=0;i<73;i+) x1=360+50*Math.cos(i*p)+8*Math.sin(i*4*p);y1=130+50*Math.sin(i*p)+8*Math.cos(i

21、*4*p)sp.graphics.lineTo(x1,y1);sp.graphics.lineStyle(2,0x0000f00),sp.graphics.moveTo(540,135);for(i=0;i<73;i+) x1=490+50*Math.cos(i*p)+5*Math.sin(i*5*p);y1=130+50*Math.sin(i*p)+5*Math.cos(i*5*p)sp.graphics.lineTo(x1,y1);整数倍周期交叉效果var sp:Sprite=addChild(new Sprite() as Sprite;var x1:Number,y1:Numbe

22、r,i:int,p:Number=Math.PI/90;sp.graphics.lineStyle(2,0xff0000),sp.graphics.moveTo(100,180);for(i=0;i<181;i+) x1=100+20*Math.sin(i*p)-30*Math.sin(i*2*p);y1=130+20*Math.cos(i*p)+30*Math.cos(i*2*p)sp.graphics.lineTo(x1,y1);sp.graphics.lineStyle(2,0x00ff00),sp.graphics.moveTo(230,180);for(i=0;i<181

23、;i+) x1=230+20*Math.sin(i*p)-30*Math.sin(i*3*p);y1=130+20*Math.cos(i*p)+30*Math.cos(i*3*p)sp.graphics.lineTo(x1,y1);sp.graphics.lineStyle(2,0x0000ff),sp.graphics.moveTo(360,180);for(i=0;i<181;i+) x1=360+20*Math.sin(i*p)-30*Math.sin(i*4*p);y1=130+20*Math.cos(i*p)+30*Math.cos(i*4*p)sp.graphics.line

24、To(x1,y1);sp.graphics.lineStyle(2,0x0000f00),sp.graphics.moveTo(490,180);for(i=0;i<181;i+) x1=490+20*Math.sin(i*p)-30*Math.sin(i*5*p);y1=130+20*Math.cos(i*p)+30*Math.cos(i*5*p)sp.graphics.lineTo(x1,y1);-var sp:Sprite=addChild(new Sprite() as Sprite;var x1:Number,y1:Number,i:int,p:Number=Math.PI/9

25、0;sp.graphics.lineStyle(2,0xff0000),sp.graphics.moveTo(100,70);for(i=0;i<181;i+) x1=100+40*Math.sin(i*2*p)-20*Math.sin(i*3*p);y1=130-40*Math.cos(i*2*p)-20*Math.cos(i*3*p)sp.graphics.lineTo(x1,y1);sp.graphics.lineStyle(2,0x00ff00),sp.graphics.moveTo(230,70);for(i=0;i<181;i+) x1=230+40*Math.sin(

26、i*3*p)-20*Math.sin(i*4*p);y1=130-40*Math.cos(i*3*p)-20*Math.cos(i*4*p)sp.graphics.lineTo(x1,y1);sp.graphics.lineStyle(2,0x0000ff),sp.graphics.moveTo(360,70);for(i=0;i<181;i+) x1=360+40*Math.sin(i*4*p)-20*Math.sin(i*5*p);y1=130-40*Math.cos(i*4*p)-20*Math.cos(i*5*p)sp.graphics.lineTo(x1,y1);sp.grap

27、hics.lineStyle(2,0x0000f00),sp.graphics.moveTo(490,70);for(i=0;i<181;i+) x1=490+40*Math.sin(i*5*p)-20*Math.sin(i*6*p);y1=130-40*Math.cos(i*5*p)-20*Math.cos(i*6*p)sp.graphics.lineTo(x1,y1);-插入效果插入+叠加效果var x1:Number,z1:Number,y1:Numbervar t:uint=0,f:Number=900,p:Number=Math.PI/90;mc.graphics.lineSt

28、yle(2,0xff0000);mc.graphics.moveTo(200,400);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200*Math.cos(t*p);z1=200*Math.sin(t*p);y1=400+50*Math.sin(t*(6+1/7)*p);mc.graphics.lineTo(x1*f/(f+z1),y1*f/(f+z1);t+;if (t>1260) / 总周期=90*2*7removeEventListener(Event.ENTER_FRAME,fff);var sp:Spr

29、ite=addChild(new Sprite() as Sprite;sp.x=275,sp.z=0,sp.y=-250;var mc:Sprite=sp.addChild(new Sprite() as Sprite;var x1:Number,z1:Number,y1:Number,p:Number=Math.PI/90;var t:uint=0,f:Number=900,u=(6+1/7)*p;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(200,400);addEventListener(Event.ENTER_FRAME,

30、fff);function fff(e) x1=200*Math.cos(t*p),z1=200*Math.sin(t*p);y1=400+50*Math.sin(t*u)+20*Math.sin(t*3*u);mc.graphics.lineTo(x1*f/(f+z1),y1*f/(f+z1);t<1260?t=t+1:removeEventListener(Event.ENTER_FRAME,fff);回旋+插入+叠加效果var sp:Sprite= addChild(new Sprite() as Sprite;sp.x=275,sp.z=0,sp.y=-250;var mc:Sp

31、rite= sp.addChild(new Sprite() as Sprite;var t:uint=0,f:Number=900,p:Number=Math.PI/72;var x1:Number=200,z1:Number=0,y1:Number=400,u:Number=4+1/5;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(x1*f/(f+z1),y1*f/(f+z1);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200*Math.cos(t-6*M

32、ath.sin(t*6*p)*p);z1=200*Math.sin(t-6*Math.sin(t*6*p)*p);y1=400+40*Math.sin(t*u*p)+5*Math.sin(t*3*u*p);mc.graphics.lineTo(x1*f/(f+z1),y1*f/(f+z1);t<720?t=t+1:removeEventListener(Event.ENTER_FRAME,fff);6.五角星四种画法var mc:Sprite=addChild(new Sprite() as Sprite;var y1:Number,x1:Number,p:Number=Math.PI/

33、2.5;mc.graphics.lineStyle(2,0xff0000),mc.graphics.moveTo(55,123);for (var i:int=1; i<11; i+) y1=100+40*Math.sin(i+2.5)*Math.PI/5)-17*Math.cos(i*Math.PI/1.25);x1=55+40*Math.cos(i+2.5)*Math.PI/5)-17*Math.sin(i*Math.PI/1.25);mc.graphics.lineTo(x1,y1);mc.graphics.lineStyle(2,0x00ff00),mc.graphics.mov

34、eTo(165,124);for (i=1; i<11; i+) y1=100+34*(0.7+i%2)*Math.cos(i*Math.PI/5);x1=165+34*(0.7+i%2)*Math.sin(i*Math.PI/5);mc.graphics.lineTo(x1,y1);mc.graphics.lineStyle(2,0x0000ff),mc.graphics.moveTo(275,43);for (i=1; i<6; i+) y1=100-113*(0.5-i%2)*Math.cos(i*Math.PI/5);x1=275+113*(0.5-i%2)*Math.si

35、n(i*Math.PI/5);mc.graphics.lineTo(x1,y1);mc.graphics.lineStyle(2,0xff00ff),mc.graphics.moveTo(417.4,145);for (i=1; i<6; i+)x1=385+45*Math.sin(2*i*p)+32.4*Math.cos(3*i*p);y1=100+45*Math.cos(2*i*p)+32.4*Math.sin(3*i*p);mc.graphics.lineTo(x1,y1);mc.graphics.lineStyle(2,0x00ffff),mc.graphics.moveTo(4

36、95,43);for (i=1; i<6; i+)x1=495+33*Math.sin(2*i*p)-24*Math.sin(3*i*p);y1=100-33*Math.cos(2*i*p)-24*Math.cos(3*i*p);mc.graphics.lineTo(x1,y1);-两角和与差的三角函数公式sin（）sincoscossin, sin（）sincoscossincos（）coscossinsin, cos（）coscossinsin7穿插多角形：两个不同周期的圆叠加，其周期除公约数商的和就是叠加后的角数。var mc:Sprite= addChild(new Sprite

37、() as Sprite;var t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/60;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(250,300);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*2*p)+50*Math.cos(t*3*p);y1=200+100*Math.cos(t*2*p)+50*Math.sin(t*3*p);mc.graphics.lineTo(x1,y1

38、);t<120?t=t+1:removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/40;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(230,300);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*

39、2*p)+30*Math.cos(t*5*p);y1=200+100*Math.cos(t*2*p)+30*Math.sin(t*5*p);mc.graphics.lineTo(x1,y1);t<120?t=t+1:removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/40;mc.graphics.lineStyle(2,0xff0000);mc.graphics.

40、moveTo(220,300);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*2*p)+20*Math.cos(t*7*p);y1=200+100*Math.cos(t*2*p)+20*Math.sin(t*7*p);mc.graphics.lineTo(x1,y1);t<120?t=t+1: removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var

41、t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/36mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(250,300);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*3*p)+50*Math.cos(t*4*p);y1=200+100*Math.cos(t*3*p)+50*Math.sin(t*4*p);mc.graphics.lineTo(x1,y1); t<120?t=t+1:

42、(t=120,removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/60;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(250,300);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*4*p)+50*Ma

43、th.cos(t*5*p);y1=200+100*Math.cos(t*4*p)+50*Math.sin(t*5*p);mc.graphics.lineTo(x1,y1); t<120?t=t+1: removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/60;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(2

44、40,300);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*3*p)+40*Math.cos(t*5*p);y1=200+100*Math.cos(t*3*p)+40*Math.sin(t*5*p);mc.graphics.lineTo(x1,y1); t<120?t=t+1:removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0

45、,x1:Number,y1:Number,p:Number=Math.PI/60;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(240,300);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*5*p)+40*Math.cos(t*7*p);y1=200+100*Math.cos(t*5*p)+40*Math.sin(t*7*p);mc.graphics.lineTo(x1,y1); t<120?t=t+1:removeE

46、ventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number=270,y1:Number=300;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(x1,y1);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*Math.PI/14)+70*Math.cos(t*Math.PI/7);y

47、1=200+100*Math.cos(t*Math.PI/14)+70*Math.sin(t*Math.PI/7);mc.graphics.lineTo(x1,y1);t+;if (t>28) removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number=250,y1:Number=300;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(x1,y1);addEventL

48、istener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*Math.PI/21)+50*Math.cos(t*Math.PI/7);y1=200+100*Math.cos(t*Math.PI/21)+50*Math.sin(t*Math.PI/7);mc.graphics.lineTo(x1,y1);t+;if (t>42) removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var

49、 t:uint=0,x1:Number=250,y1:Number=300;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(x1,y1);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*Math.PI/28)+50*Math.cos(t*Math.PI/7);y1=200+100*Math.cos(t*Math.PI/28)+50*Math.sin(t*Math.PI/7);mc.graphics.lineTo(x1,y1);t+

50、;if (t>56) removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number=240,y1:Number=300;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(x1,y1);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+100*Math.sin(t*Math.PI/40)+40*Ma

51、th.cos(t*Math.PI/8);y1=200+100*Math.cos(t*Math.PI/40)+40*Math.sin(t*Math.PI/8);mc.graphics.lineTo(x1,y1);/（5:1>5+1=6角）t+;if (t>80) removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/90;mc.graphics.lineStyl

52、e(2,0xff0000);mc.graphics.moveTo(295,200);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+80*Math.cos(t*p)+15*Math.cos(t*6*p);y1=200+80*Math.sin(t*p)+15*Math.sin(t*6*p);mc.graphics.lineTo(x1,y1); t+;if (t>180) removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new S

53、prite() as Sprite;var t:uint=0,x1:Number,y1:Number,p:Number=Math.PI/60;mc.graphics.lineStyle(2,0xff0000);mc.graphics.moveTo(200,80);addEventListener(Event.ENTER_FRAME,fff);function fff(e) x1=200+80*Math.sin(t*2*p)-40*Math.sin(t*3*p);y1=200-80*Math.cos(t*2*p)-40*Math.cos(t*3*p);mc.graphics.lineTo(x1,y1);t+;if (t>120) removeEventListener(Event.ENTER_FRAME,fff);var mc:Sprite= addChild(new Sprite() as Sprite;var t:uint=0,x1:Number,y1: