File list (Check if you may need any files):
用fstream进行文件操作
.....................\CombineLine
.....................\...........\CombineLine.cpp
.....................\...........\CombineLine.dsp
.....................\...........\CombineLine.dsw
.....................\...........\CombineLine.ncb
.....................\...........\CombineLine.opt
.....................\...........\CombineLine.plg
.....................\...........\Debug
.....................\...........\.....\CombineLine.exe
.....................\...........\.....\dst.txt
.....................\...........\.....\src.txt