θʲô
θҲһN^Ҋļ˶DZ^ʹģкܶĖ||ܳ˷dzʹ࣬˂Ҫעʳa(b)һNܺõί
E/
1θRF(xin)УϸʹһһСr(ni)ѪʹһɂСr_ʼ´γĕr؏(f)F(xin)@Y(yn)صθ˕F(xin)Ѫ߀Ҫͨ^(ni)RzX^͙zԴ_\
2θʳʳ(ji)P(gun)IʳҪעⲻҪ^ʳ癎ʡɽʳϳЩʳ˾ƥֵȌθ̼õˎ߀н(zhn)ʹˎϢʹȥʹƬȷwˎٳһЩ̼Եʳ
3θIJ÷eOίˎίЊWĪ涡@Щˎ߀θճĤo(h)ˎԼTݗUˎҎ(gu)ίǷθP(gun)Iˎί߀RעԼg(sh)ίȵ
ע헣
θDZ^ʹ߀׳F(xin)l(f)YԻҪעʳٳըʳ߀ƵʳһЩˮ߲֮ʳ