(1/2)ҳ
ȨֱӺһ£κҶϵẉֱ̂Ӿ͵ȥ˸ڣһȺô˿סź˸ˡ
κҶĴҲˣһľͳ˳ȥһҲվȨԼԴæҲȥ
վԭأãˣҪ״ҵĽ࣬κҶ϶ûʲô˵ģ˭ְìͷȻæ¥Ҫؼҵʱҵֻֻdfˣ̱ˡ
һdfô˵ʱֻ֮ˣųеһҽԺȥˣһߴ绰һ߾ͳ嵽˲ҳȥʱҿڲϣûʲô飬ûdfıϣ۾ʱҲѾˣҿԵĻһ磬ܽĿΧҲǸ߶Ƚ䱸ˣҳ嵽ıϡ裬ô
û£DzС£ɶ¶ûУռˣİɣ㿴㡣
ҳdfȷ˰ûԺתͳˣǰųdfҲˣ˱һ˵Ľ䡰Ⱥյ˵ҪɱǣҪǣҲ̫ˣ˭ûˣ˭費ɵɶյġ
磬ڱŭŭҲûãûҺͰ˵һûյСҵģѾˣҲûʲô飬һˣʱԳԺ϶֪ˣûأȥҲУ۾ҲܵˣҲ㵣ģһֱû˵ֵĺĸŮ飬һ鶼ûа磬ȥС
Ⱥյ˵ҪŪǣҪͬھ
ҷŭĴһ䣬תҪߣҸҪߵʱdfӱһѾץסҵĸ첲ʲôû˵ֻǶٿ
Ƭ֮ҳĬˣҿdfЦһЦһҵļôˣѾǸ嶯ˣҪģ嶯Ҳ⡣
dfɽ©ˮڹؼʱַ̣ܱdz侲ֵѧϰģʱһ˳
תͷʱŻŵij˹ҵıϣһĻš˵ĸ׳û°ģĸϹôۣץ
(1/2)ҳ,һҳĶ
ǩĶ