(@buy @sell @repair @s_repair)
%100
+20
+19
+21


[@main]
ӭ. ҿ԰ʲô?\ \

 </@buy>  \
 </@sell> \
 </@repair> \
 </@s_repair>\
<˳/@exit>

[@buy]
Ҫ?\ \ \
 </@main>

[@sell]
?\ \ \
 </@main>

[@repair]
Ҫ?\ \ \
 </@main>

[~@repair]
ȥǺõ.\ \
 </@main>

[goods]
;Ʒ                ʱ
        3          3
ͳ      3          3