正确的文件读取\a.txt
..............\b.txt
..............\Debug\txt读取.exe
..............\.....\txt读取.ilk
..............\.....\txt读取.obj
..............\.....\txt读取.pch
..............\.....\txt读取.pdb
..............\.....\vc60.idb
..............\.....\vc60.pdb
..............\txt读取.cpp
..............\txt读取.dsp
..............\txt读取.dsw
..............\txt读取.ncb
..............\txt读取.opt
..............\txt读取.plg
..............\Debug
正确的文件读取