G, G4 ..G(S-1+G,G, G+ GG+,G, G G1 例2-11 n=2, Pi=acegi, P2=kgi 2LI=ab+++gh+ij+kbdf ∑L2=abef+abgh+ab·ij+cdgh+cd·ij+ef·ij+kbdf…ij ∑L3= abef ij ∴△=1∑L1+∑L2-∑L3,△1=1,△2=1-cd ∴G(s) P△1+P2 P△1+P2△2 ∑L+∑L2-∑∴ G(s)= 2 3 6 3 4 5 1 2 3 4 7 1 2 3 4 1 G G G G G G G G G G G G G G G + + + 例 2-11 k 1 a c e g i 1 b d f h j n=2, P1=acegi, P2=kgi ∑L1=ab+cd+ef+gh+ij+kbdf ∑L2=ab·ef +ab·gh +ab·ij +cd·gh +cd·ij +ef·ij +kbdf·ij ∑L3=ab·ef·ij ∴△=1-∑L1+∑L2-∑L3 , △1=1,△2=1-cd ∴ G(s)=  P11 + P22 = − + −  +  1 1 2 3 1 1 2 2 L L L P P