File list (Check if you may need any files):
GPRS\listing\delay.lst
....\.......\display.lst
....\.......\fencheng.lst
....\.......\GPRS.lst
....\.......\gps.lst
....\.......\GPS.m51
....\.......\lcd12864.lst
....\.......\lcd1602.lst
....\.......\main.lst
....\.......\MQ2.lst
....\output\delay.obj
....\......\display.obj
....\......\fencheng.obj
....\......\GPRS.obj
....\......\GPS
....\......\GPS.hex
....\......\GPS.lnp
....\......\gps.obj
....\......\GPS.plg
....\......\lcd12864.obj
....\......\main.obj
....\......\MQ2.obj
....\user\all.h
....\....\display.c
....\....\display.h
....\....\fencheng.c
....\....\fencheng.h
....\....\GPRS.C
....\....\GPRS.h
....\....\gps.c
....\....\gps.h
....\....\lcd12864.c
....\....\lcd12864.h
....\....\lcd1602.c
....\....\lcd1602.h
....\....\main.c
....\....\MQ2.c
....\....\MQ2.h
....\....\STC12C5A.h
....\....\基于51单片机GPS定位系统.plg
....\....\基于51单片机GPS定位系统.uvgui.Administrator
....\....\基于51单片机GPS定位系统.uvopt
....\....\基于51单片机GPS定位系统.uvproj
....\....\基于51单片机GPS定位系统_uvopt.bak
....\....\基于51单片机GPS定位系统_uvproj.bak
....\listing
....\output
....\user
GPRS