i=1; 
max=50;
第二贞:

duplicateMovieClip(snow,"snow"+i,i); 
this["snow"+i]._x = random(1200); 
size = (random(10))+5; 
this["snow"+i]._xscale = size; 
this["snow"+i]._yscale = size; 
for (j=1; j<=max; j++) { 
this["snow"+j]._y = this["snow"+j]._y+(random(10))+5; 
}
第三帧:

if (i > max) { 
i = 1; 
} else { 
i = i+1; 
} 
gotoAndPlay(2);