I(yng)XU,X۸,ӚX,X۸O(sh),XĥC(j),Xۻ(yn)O(sh),ÓģO(sh),l(f)݄
l(f) O(sh)(y)
+
r(ji)10000 Ԫ
X½
X߅σr(ji)XUϏS
r(ji)1 Ԫ
XX½X߅
(yng)UXUX(bo)r(ji)
r(ji)9999 Ԫ
X(yng)