通过VB控制单片机的IO端口，和控制下位机的启动与停止，波特率是9600 COM4 。

淋雨实验室\上位机程序\Book1.xls
..........\..........\Form1.frm
..........\..........\Form2.frm
..........\..........\Module1.bas
..........\..........\MSSCCPRJ.SCC
..........\..........\工程1.vbp
..........\..........\工程1.vbw
..........\单片机程序\DS18B20
..........\..........\DS18B20.hex
..........\..........\DS18B20.lnp
..........\..........\DS18B20.M51
..........\..........\DS18B20.plg
..........\..........\DS18B20.uvgui.Administrator
..........\..........\DS18B20.uvgui_Administrator.bak
..........\..........\DS18B20.uvopt
..........\..........\DS18B20.uvproj
..........\..........\DS18B20_uvopt.bak
..........\..........\DS18B20_uvproj.bak
..........\..........\main.c
..........\..........\main.LST
..........\..........\main.OBJ
..........\上位机程序
..........\单片机程序
淋雨实验室

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