Romberg算法
...........\1.cpp
...........\1.dsp
...........\1.dsw
...........\1.ncb
...........\1.opt
...........\1.plg
...........\1.txt
...........\2.cpp
...........\2.dsp
...........\2.dsw
...........\2.ncb
...........\2.opt
...........\2.plg
...........\Debug
...........\.....\1.exe
...........\.....\1.ilk
...........\.....\1.obj
...........\.....\1.pch
...........\.....\1.pdb
...........\.....\2.exe
...........\.....\2.ilk
...........\.....\2.obj
...........\.....\2.pch
...........\.....\2.pdb
...........\.....\vc60.idb
...........\.....\vc60.pdb