ԵƲⷨ
÷Χ
----
ҸлĬĬĵţ֪ⶼǣҺ/δչ
Σ"ԵƲⷨ"óˡܹԹȥڡδн
ͬʱߵж飬൱ʵʵƲⷽʽร

ڷ
1ƲⷨʽкܴĲͬڽϴƵʱҪߵϡ㿪ʼϴ
ƵʱҪͬʱоĬƲ(һֻһλɲҪ
)ֻҪоϴƣκȻ߾ʱֹͣϴơ߾ù
˵ʱ򣬱뺰 "ͣ"ʱſ԰˳ʱķ£ȻƵĳһ
ķʽһС
2ʵƺ󣬽ĵһŵȡͬͼʾλ÷źáҪСģҪƵ·Ū

3ɣƽн

1              7

   2        6
   
      3   5

        4

λ
(1)߹ȥ顣
(2)ԷĿǰ״
(3)Էδ״
(4)⸱ƽ߲ȡж
(5)ǶԷĸԡµ硣
(6)Ϊ˹ϵֵܳ谭
(7)յĽ֡


