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1、1? ? ? ? ?1 ? ? !?“#$ ?%?%?%? !?(?(ABC%?DE#(FG= !?3?9?H !?aI !?(0)b b 1%JKLM=N? !?O%“#PQ !?aRI !?(0)b b ?1%?OSa=b(T?Ub=a(V?3RI ? ?1( !?G=?RI ? ?1( !?G=?3?GW?-.X2k?k?(YZ?GW?-.X21k +?k?(YZ3?9?N?N?:_?V?%S?a? 3N?1N? _?2(V?%S?3?W? !? ?%?9?3? =?(?%1 ? ?2(?G=?3?N?%?,=?N?+?;?( ?2170.217 217 2170.217999=?=?7
2、(?7?(?%?,=?,=?N?+?;?( ?%75?9?7?+?;?( ?23522330.235 353 50.235990990=?V?T?w w w . s h a r ew it h u . c o mSh a r eW it h U 尚友论坛原创整理2?V?1,23,(2)na a aa n=n?%d=E#?N?(V?%Sd?n?(?V?a? 3n?1,23,(2)na a aa n(?V?(N?%();(),mnm nmnmnnnna aaaaaba ba m nR+=,2m nmnaaaR mZ nZ n+=?0?6?0a %+,?a(ABC0?300 00aaaaaa = ?
3、4?5?(01)0xaaa67?8?4?0?6?(?9:?O%?0?;!?3?abab+%H6abab%H6?9Z%?ababab+A9=X(BC?0,abab6DA9=X(BC?0ab ?aa=?;E?(?ABC;9?aaa?xaaxaa?aba b=?(0)bbaaa=?FGHIABCJK?ABC2LMNONPQ?( )f xxaxbc=+=?O%9R:min( )cf x?( )f xxaxbc=+=?O%9R:min( )cf x?ABCS,TU?*?V?(?-.?3?a(ABCa(?aB?(?A?O(?%?aAO=3?, a b(ABCab(?, a bB?(?,A B?(?%?ab
4、AB=3?J.3w w w . s h a r ew it h u . c o mSh a r eW it h U 尚友论坛原创整理4?W?C? ?Hnxxx%,21?n?O%:#(?W?C?:#(?W?C%?), 1 0( 2121nixxxxnxxxinnn?H?HO%?=X?nxxx=213? ?2abba?=RX?N?=?%00ba? ?2(0)abababba?%?=? ?n?(?W?C9?W?C;?O% n?;?%?W?C3?%(1%)apap +?C!?C%)1 (%papa ?C?C%pppp=?%?=?(?6?6?:a bc dadbc=?6?acbd bdac=?6?aca
5、b bdcd=?6?acabcd bdbd+=?6?acabcd bdbd=?6?acabcd bdabcd+=?6?acemacema bdfnbdfnb+ + +=+?%?“0bdfn+?aAaOBbabw w w . s h a r ew it h u . c o mSh a r eW it h U 尚友论坛原创整理5?61ba ba mbma01a b+(0)m ?(?*?w w w . s h a r ew it h u . c o mSh a r eW it h U 尚友论坛原创整理6?n ?ZN?Z ?Z#?Z?Z?Z?Z?ZZ?Z?Z?Z?$Z B?Z%?Z? !? !? !“
6、Z?222)2abaabb=+?2222)222abcabcabacbc+=+?22()()abab ab=+?33223)33abaa babb=+?3322()()abab aabb=+?Z(1!#$?Z( )F x1?Z( )f xLZ?( )g x%Z?( )r x%?( )( ) ( )( )F xf x g xr x=+3H( )r x? O%( )( ) ( )F xf x g x=X !1?$?$ ?(?)!“?%“?% 456?!?w w w . s h a r ew it h u . c o mSh a r eW it h U 尚友论坛原创整理7?Z(?6?Z(?)?, ?
7、a1?N?(Z)%?Z(C?73?Z(#$?Z*?!#$+?%?,(?Z?,(?Z?,?%?;?V?Z?1!?$+?Z1!%1Z?,?!?Z?!%?%?,?,%?OV?#?(?;?(?000 42acb?3?4?54?3?4?5412,x x=?20(0)axbxca+=(?%#?67*8?9:#?67*8?9:?;:67*8?5AB3?CDE?F!;:67*8?5AB3?CDE?F!?12121211xx xxx x+=?2 1212 222 1212()211 ()xxx x xxx x+=?212 212 21214)()(xxxxxxxx+=?33222 12121121121212(
8、)()() ()3xxxxxx xxxxxxx x+=+=+$?,?-“G$?,?-“G?;?(?(?N?X(?%: ? GX?($%?20axbxc+B;: ?GX?%?0a 10 ?(?Z)?(-.%H?%ZP %JK(?.1121+=+=+knknnaaaaaa?5?6T/?N5?-N512?07?55/?;?5?6T/?2kO?H54kaH507?5?VnS=?*na(0 ? 5?%nS%2nnSS%32nnSSMX?*311222kkkkkaaaaa+=+=+=?123 1nnni iSaaaaa=+=1121nn nSSnaSn=w w w . s h a r ew it h u
9、. c o mSh a r eW it h U 尚友论坛原创整理11?)?H?)?H,FN?*?-?5NBN59:0N5(8G?O?N?9n?G(3?%H?*P?1231212 11 111+=knknnnn naaaaaaqaqaaaa?5?6T/?1n+?H54S1?5?H1k O?4ka07?55/F;? ?=+22112 kkkkkaaaaa?nS=?8?*na(0n5?%nS%2nnSS%32nnSS%?MX?3w w w . s h a r ew it h u . c o mSh a r eW it h U 尚友论坛原创整理12#?M:?HK?M:?HK ? J?J?21(1)(2
10、1) 6nkn nnk=+=?2 31(1) 2nkn nk=+=$?J?$?J?rnr nnCC=%?9?(?(?Z?;?012nn nnnCCC+=%?Z?Z?2n?*?Z?(1)(1)n mnpm mmn= +? ? ?010!=1mp =?(1)(1) !n nm mpm mmnCnn +=?01n nnCC=?11n nnCCn=?22(1) 2n nnn nCC=?Z?Z()nab+-1k +?1(0,1,2, )kn kk knTC abkn +=?w w w . s h a r ew it h u . c o mSh a r eW it h U 尚友论坛原创整理13?Z?Hn?
11、O%?Z?(1)n+? %?)?-(1)2n+?Z?%?22nnnTC=?Hn?O%?Z?(1)n+? %?)?%?-1()2n+?-13(1)22nn+ =?(?Z?%?1 2 1 2nnnTC+=a1 2 3 2nnnTC+=?/;?-?,?Z?Z01111()nnnnnnn nnnnabC aC abCabC b+=+?J-.(?X?Z?3?Z-1k +?kknk nkbaCT +=1%0,1,2,.,kn=? ?1n+? ?a(?0n ? ?Ub(?0n ?!?U?a9b(?n?Z?Z(“?-1 2n+?3 2n+?1 2nnC+ ?3?Z?)(#?$rn r nnCC=%?9?(?;
12、?U?$01 nnCC+%?2nn nC =%?Z?2nU?$024. nnnCCC+=1351.2nnnnCCC+=%?%$? ?/;?(?=?N?3?2?Z. n ?.()m mn?(J?(%?%?(?=?N?3?2?Z. n?.()m mn?(J?(%?%?O%12W?a?;W?23563?12?0W?F/WR?F(?%*E? A,B,C,.?4(?G!?WR?N?D:X(H:)%S?(?%(?/,%? A=B?3? A ? B ?N?(?%S? A ? B (?%?ABa A+B36?AAA=;AAB;BAB.?4F? A ? B ?(?%S? A 9 B (F?%?ABa AB.6?AAA=;AAB;BAB;()AABA=;()BABB=;()ABAA=;()ABBB
