flash as 让影片剪辑按指定坐标旋转指定的角度

http://blog.sina.com.cn/s/blog_50e610900100oh5z.html

import flash.display.MovieClip;
import flash.geom.Matrix;
MovieClip.prototype.rotationLee=function(tempx:Number,tempy:Number,r:Number){
varmc_lee:MovieClip=this;
var Matrix_lee:Matrix =mc_lee.transform.matrix;
Matrix_lee.translate(-tempx, -tempy);
Matrix_lee.rotate(r * Math.PI /180 );
Matrix_lee.translate(tempx, tempy);
mc_lee.transform.matrix =Matrix_lee;
}

//调用方法 mc是影片剪辑
mc.rotationLee(139,216,-30);