假設原本有$10, 用$8買雞, 剩$2
/ ~$ l- R+ ~/ U2 X& X) `3 `tvb now,tvbnow,bttvb之後$9賣出, $2+$9 = $11www3.tvboxnow.com4 o( P" [: S8 z" s5 I( S
再用$10買雞, $11-$10 = $1
$ ~5 y0 Q2 @5 _2 F: h6 I5 k* t3 @2 dtvb now,tvbnow,bttvb又再以$11賣出, $1+$11 = $12
0 V" F3 ?, ?0 l/ ^7 y公仔箱論壇$12-$10 = 賺$2 |