銆婄紪璇戝師鐞嗐�嬫湡鏈瘯棰橈紙鍥涳級
1
銆?/p>
浠庝紭鍖栫殑鑼冨洿鐨勮搴︼紝
浼樺寲鍙互鍒嗗摢涓ょ被锛熷寰幆鐨勪紭鍖栧彲浠ユ湁鍝笁绉嶏紵
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2
銆佸啓鍑鸿〃杈惧紡
a=b*c+b*d
瀵瑰簲鐨勯�嗘尝鍏板紡銆佸洓鍏冨紡搴忓垪鍜屼笁鍏冨紡搴忓垪銆?/p>
绛旓細閫嗘尝鍏板紡锛?/p>
abc*bd*+:=
鍥涘厓寮忓簭鍒楋細
涓夊厓寮忓簭鍒?/p>
: OP ARG1 ARG2
(1) (*
锛?/p>
b
锛?/p>
c
锛?/p>
t
1
)
(1) (* b
锛?/p>
c )
(2) (*
锛?/p>
b
锛?/p>
d
锛?/p>
t
2
)
(2) (* b
锛?/p>
d )
(3) (+
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t1
锛?/p>
t
2
锛?/p>
t
3
)
(3) (+ (1)
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(2))
(4) (:=
锛?/p>
t3
锛?/p>
/
锛?/p>
a)
(4) (:= (3)
锛?/p>
a)
3
銆佸浜庢枃娉?/p>
G(S):
锛?/p>
Ma
L
a
|
(L
M
bMb
S
飩?/p>
飩?/p>
飩?/p>
绛旓細
1
锛?/p>
b
Ma
b
Lb
b
bMb
S
)
(
(
飪?/p>
飪?/p>
飪?/p>
2
锛?/p>
鐭
: Ma)
锛?/p>
(Ma)
锛?/p>
b(Ma)b
鐩存帴鐭
: Ma)
鍙ユ焺
: Ma)
涓夈�?/p>
璁炬湁瀛楁瘝琛?/p>
{a
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b}
涓婄殑姝ｈ寮?/p>
R=(ab|a)*
銆?/p>
瑙ｏ細
锛?/p>
1
锛?/p>
锛?/p>
2
锛夊皢锛?/p>
1
锛夋墍寰楃殑闈炵‘瀹氭湁闄愯嚜鍔ㄦ満纭畾鍖?/p>
蔚
a
b
-0
1
1
3
12
2
1
+3
0
1
2
3
b
a
a
蔚
蔚
-
+
S
b
M
(
T
M
a
b
L
)