thanks for your support raft.
the step to expo as follow :
0 - to keep the bones is the newest ~!
1- to copy the ninja.mesh.xml ninja.skeleton.xml into Bones\scripts\
2- input command : jmeOgre2Bones -out ninja.bones -in ninja.mesh.xml
3- and then ,the file named ninja.bones was output;
Question: however, why the file could be name [size=78%]ninja.bones or ninja.group.bones ? what's different between them ?[/size][/b]