假設原本有$10, 用$8買雞, 剩$2
1 I6 |8 r, @) i/ s" { \6 ^之後$9賣出, $2+$9 = $113 g/ C* e9 T8 L( Q
再用$10買雞, $11-$10 = $1www1.tvboxnow.com& G+ [" t; j6 M% v+ G5 l- A' w% i6 }; e
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。. w O9 W# `; O
$12-$10 = 賺$2 |