(2,1,-1,1/2) (2,1,-1,-1/2) (2,1,1,1/2) (2,1,1,-1/2) (2,1,0,1/2) (2,1,0,-1/2) (2,0,0,1/2) (2,0,0,-1/2) 共八种可能答案n,l,ml,ms的取值如下：n=1,2,3,4..... l=0,1,2,3,.....ml=0,-1,+1,-2,+2,-3,+3,.....ms=1/2 ,-1/2
