读DS18b20的序列号\du.ewp
.................\du.eww
.................\du.dep
.................\main.c
.................\settings\du.cspy.bat
.................\........\du.wsdt
.................\........\du.dbgdt
.................\........\du.dni
.................\Debug\Exe\du.hex
.................\.....\Obj\du.pbd
.................\.....\...\main.r90
.................\.....\List\main.lst
.................\.....\Exe
.................\.....\Obj
.................\.....\List
.................\settings
.................\Debug
读DS18b20的序列号