计算方法1
.........\11.cpp
.........\11.dsp
.........\11.dsw
.........\11.ncb
.........\11.opt
.........\11.plg
.........\Debug
.........\lagelangri.cpp
.........\lagelangri.dsp
.........\lagelangri.dsw
.........\lagelangri.ncb
.........\lagelangri.opt
.........\lagelangri.plg
.........\liming.cpp
.........\liming.dsp
.........\liming.ncb
.........\liming.opt
.........\liming.plg