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let 1st thing = Xtvb now,tvbnow,bttvb( {' F0 W" A, B
     2nd thing=X+100
- e4 {6 C( G7 |# P; Z% f4 ^公仔箱論壇
$ D/ ~5 e) ~2 ]0 {8 k( M6 ]5.39.217.77X +( X+100) = 100.10/ h; s/ O. m! r% ~7 m* O0 a4 k
2X + 100 = 100.10
2 f/ ?- U1 M/ S9 C( Atvb now,tvbnow,bttvb2X = 100.10 - 100 = 0.10
: \: R* E5 i' D% @& F公仔箱論壇X = 0.10 / 2 = 0.05/ [! O+ r/ M  O5 @9 v

& O9 t# Y% k+ O- }$ D2 E# p1st thing = X = 0.055.39.217.775 g7 O* b7 i6 ?, c/ |
2nd thing = X+100 = 100.05