mainwindow\images\copy.png
..........\......\cut.PNG
..........\......\mainwindow.qrc
..........\......\mainwindow.qrc~
..........\......\new.png
..........\......\open.PNG
..........\......\save.PNG
..........\......\saveas.png
..........\......\undo.png
..........\mainwindow.cpp
..........\mainwindow.h
..........\mainwindow.ui
..........\qrc_mainwindow.cpp
..........\test.txt
..........\ui_mainwindow.h
..........\使用设计器设计窗口步骤.txt
..........\images
mainwindow