(@buy @sell )
%100
+0
+42
[@MAIN]

ӭҪʲô\ \
ҪڿĻ㻹ǶҴһЩϢĺ\
 </@buy>ҩƷ\
 </@sell>ҩƷ\
 <Ϣ/@DTXX>\
 <ȡ/@exit>
[@DTXX]
ûʲôر\
pkĻҲᴦŶ\
 </@Main>

[@buy]
ʲô\ \ \
 </@Main>

[@sell]
ҿĶ\ \ \
 </@Main>

[goods]
ҩ()	50	5
ħҩ()	50	5
ǿЧҩ	50	5
ǿЧħҩ	50	5
ҩ()	50	5
ħҩ()	50	5
ҩ	100	5
ħҩ	100	5
̫ˮ		20	3
ǿЧ̫ˮ	100	5
ѩ˪        10      2
