ֱԼʲôYF(xin)?Ҷ֪҂ҶϲgĖ|˱һЩҪĂ҂njİYM˽һNǿƼֱԼҲ҂һ˽һֱԼİYF(xin)
һֱԼߵIJl(f)չô(sh)ߵȫ¸ٶв̶ͬȵ۬F(xin)͕һϵеİYF(xin)iʹ^^DӵĹȏֱԼڰYijF(xin)ʹSrаc{
ͬrֻҪǻߵIJl(f)չڣF(xin)µ@ЩڏֱԼİYʹʹȫP(ji)ʹʹʳm(x)Բg;ȫoݡήsʧK½F(xin);ӹʧĹλƬF(xin)P(ji)ǾӲںϣgѽǻgػΏ@rίǺyʹҲºzY
҂ѽҽBˏֱԼİYF(xin)Ŵѽ˽ֱԼѽصƉ҂Ҫϧ