flash 飞雪制作 duplicateMovieClip(snow,"snow"+n,n); setProperty("snow"+n,_x,math.random()*450); setProperty("snow"+n,_y,0); scale=math.random()*50+50; setProperty("snow"+n,_xscale,scale); setProperty("snow"+n,_yscale,scale); setProperty("snow"+n,_alpha,