(原雞$8)-(賣$9)=-$1 (賺$1)
- B2 C& [; ]. k$ Z4 {% T1 O
* b# C4 K# _/ n3 utvb now,tvbnow,bttvb(以$10)-(買回原雞$8)=$2 (蝕$2)& }7 ` q7 S3 l# \2 N) [. r
/ J4 c" N8 I2 Z; z* |' s6 H5.39.217.76($10雞)-(賣$11)=-$1 (賺$1)5.39.217.760 E! O6 G* i* W9 A
5.39.217.768 {! x, P; J/ m8 K! g; I
總計=賺$1 蝕$2 賺$1
! h7 B/ v# ~2 s' S5 Atvb now,tvbnow,bttvb
& e6 c& J$ _1 |9 Q8 f2 c試問賺2蚊再蝕2蚊...5.39.217.76# _* r6 ]" ?' r/ k# H5 _0 N
9 G5 n3 ^# V: h5 j9 ^* _答案=0 |