(1/2)ҳ
ԵĻ˷ͷȲ˵Ϊ̬ȾͺֵôҳޡҲǺƼһDzΪȥЩĵ顣
Ȼ˵Щ̫룬ܶνҵʶDzҵӪʱʲôġһֱڼţδҡ
˵ij, ЦŻʵλһļϷǾԵģDz쳵ûЩľ
ѡⷽ˼ҽоģֻǼӦ̡
ǿϵģȻִֻʹһҲ, ֻõǵļȫ֤
Ȼ, ǻҪ˳Ӧгʵdzޡ
г, ӱҵӲҪгΪͱҪ˳ӦгȻⲻеļǻǻеġ
ԵĻҲ¶˷dzεı顣ʵҲܲпᡣû̫ܹӰıᣬԼá
˼һ£Ҳǵ˵ͷԷԸⷽһҪãҪЩǩصЭǹںλַ棬ԷֹЩ˦
ܶˣ˦, ̫ˡԶ綯г𱬺ԽԽʱӿУ˭, ³쳵ˣƷƵӿ֮ǰЩ쳵ļݺһҹ֮ȫʧˡ
ʵǶdzǵģҲֻԼǶѣǿɲմȾ₀̶ʱŪԼһȡ
Ϊ˷ֹⷽķųԶ
ģⷽǻ복ǩdzϸĺͬξ壬ֹԷº˦ңֻҪװǵԶʻϵͳһⲿײ߲෭ԶʻϵͳһʱϵͳϢֹΪ۸ġһ棬ҲὫ¹ǰӵϢȫϴݿбݣԱںʱݽԳƻش
, ͺá
Եͷ˻ֵɣ
DZ߱˵ƵĻ, Цŵ˵ͷ, һʵȥһ߳ǽܵ
(1/2)ҳ,һҳĶ
ǩĶ