实验六（DAC0832）
.................\dac
.................\dac.c
.................\dac.hex
.................\dac.lnp
.................\dac.LST
.................\dac.M51
.................\dac.OBJ
.................\dac.Opt
.................\dac.plg
.................\dac.Uv2
.................\DAC0832 ZC.DSN
.................\DAC0832 ZC.PWI
.................\dac_Opt.Bak
.................\dac_Uv2.Bak
.................\STARTUP.A51
.................\STARTUP.LST
.................\STARTUP.OBJ