编辑MFC界面

  编辑MFC界面，打开txt数据文件，读取文件，显示文件里数据的行数。(Edit MFC interface, open the txt data files, read the file, display the number of rows in the data file.)

mfc打开文件
...........\11111.aps,35768,2013-12-12
...........\11111.clw,1125,2013-12-24
...........\11111.cpp,2071,2013-11-19
...........\11111.dsp,4141,2013-11-19
...........\11111.dsw,535,2013-11-19
...........\11111.h,1323,2013-11-19
...........\11111.ncb,66560,2013-12-24
...........\11111.opt,48640,2013-12-24
...........\11111.plg,959,2013-12-24
...........\11111.rc,5315,2013-12-12
...........\11111Dlg.cpp,5466,2013-12-24
...........\11111Dlg.h,1373,2013-11-19
...........\123.txt,21,2013-12-12
...........\cpp.zip,1021,2013-12-25
...........\Debug
...........\.....\11111.exe,106579,2013-12-24
...........\.....\11111.ilk,225932,2013-12-24
...........\.....\11111.obj,13238,2013-11-19
...........\.....\11111.pch,5502336,2013-11-19
...........\.....\11111.pdb,410624,2013-12-24
...........\.....\11111.res,2524,2013-12-12
...........\.....\11111Dlg.obj,43593,2013-12-24
...........\.....\exe.zip,7018,2013-12-25
...........\.....\StdAfx.obj,105822,2013-11-19
...........\.....\vc60.idb,238592,2013-12-24
...........\.....\vc60.pdb,454656,2013-12-24
...........\dsp.zip,1278,2013-12-25
...........\dsw.zip,357,2013-12-25
...........\h.zip,762,2013-12-25
...........\ReadMe.txt,3567,2013-11-19
...........\res

...........\...\11111.rc2,397,2013-11-19
...........\resource.h,821,2013-11-19
...........\StdAfx.cpp,207,2013-11-19
...........\StdAfx.h,1054,2013-11-19