yufafenxi\a.out .........\bianyi.l .........\bianyi.l~ .........\bianyi.output .........\bianyi.tab.c .........\bianyi.tab.h .........\bianyi.y .........\bianyi.y~ .........\lex.yy.c .........\lianxi.l .........\lianxi.l~ .........\y.tab.c yufafenxi