中文说明：％help avifile 可以把屏幕图片做成avi％也可以用如下打开和播放avi％ mv=aviread( 14.avi ) ％ movie(mv)％ 指定源目录 str_src％ 指定图片个数，PICNum
English Description：
%Help avitile can make the screen picture avi% or open and play avi% MV = aviread (14. AVI)% movie (MV)% as follows to specify the source directory str_ SRC% specifies the number of pictures, picnum