般式有 U B P,nC(C≠B) B ∑mn B B On,p,nC(C≠B) ∑ T,p,C(C≠B) B S=∑ P,nC(C≠B) B OG ∑ T,p,n(C≠B) B B 上页下页返回退出C C C C C B B B , , (C B) B B B B B , , (C B) B B B B B , , (C B) B B B B B , , (C B) B B B B B , , (C B) B B B ( ) ( ) ( ) ( ) ( ) = T p n T p n T p n T p n T p n U U n U U n H H n H H n A A n A A n S S n S S n G G n G G n        = =   = =   = =   = =   = =       一般式有