(@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>

[@s_repair]
Сãԭϣ۸\
ͨӴҾͿ׬Ǯˡ\ \
</@main>

[goods]
          5       10
ͳ        5       10
̴        5       10
ɫˮ    5       10
ɫˮ	5	10
	5	10
