假設原本有$10, 用$8買雞, 剩$2
7 O0 L5 A1 E$ b7 B$ S4 a# ^2 I6 h& K: K之後$9賣出, $2+$9 = $11
+ |4 f, i6 D: ]( T# E1 {6 l# \6 d% Y& ptvb now,tvbnow,bttvb再用$10買雞, $11-$10 = $1
3 E9 u0 | n8 ]4 K4 V0 k2 P e& uwww2.tvboxnow.com又再以$11賣出, $1+$11 = $12TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。7 z; R' O* ^0 m8 U" L
$12-$10 = 賺$2 |