假設原本有$10, 用$8買雞, 剩$2
/ T- I+ D+ h5 Q) j" m$ ?& atvb now,tvbnow,bttvb之後$9賣出, $2+$9 = $11tvboxnow.com# p7 r( ?' T5 x6 S \+ Q; n
再用$10買雞, $11-$10 = $1
6 x+ X: s% t5 n1 J公仔箱論壇又再以$11賣出, $1+$11 = $12
" o1 [1 W2 q# y$ O" ~1 Ztvb now,tvbnow,bttvb$12-$10 = 賺$2 |