compile\c
.......\com.c
.......\com.h
.......\common.h
.......\hello.c
.......\Lex&Yacc.pdf
.......\lex.l
.......\lex.yy.c
.......\new 2
.......\result.txt
.......\syntax.y
.......\syntax.y~
.......\y.tab.c
.......\y.tab.h
compile