read\15-1\myFile\main.cpp
....\....\......\myFile.pro
....\....\......\myfile.txt
....\...2\myDir\main.cpp
....\....\.....\mainwindow.cpp
....\....\.....\mainwindow.h
....\....\.....\mainwindow.ui
....\....\.....\myDir.pro
....\...1\myFile
....\...2\myDir
....\15-1
....\15-2
read