Qt实现类似导航栏的效果，基于QStackWidget和QTreeWidget实现
资源文件列表
OonlyTest/img/021_plus.png , 1264
OonlyTest/img/022_line.png , 1158
OonlyTest/main.cpp , 183
OonlyTest/mainwindow.cpp , 2353
OonlyTest/mainwindow.h , 684
OonlyTest/mainwindow.ui , 16593
OonlyTest/OonlyTest.pro , 413
OonlyTest/OonlyTest.pro.user , 18662
OonlyTest/OonlyTest.pro.user.3.2-pre1 , 18184
OonlyTest/OonlyTest.pro.user.520f0a2 , 18475
OonlyTest/OonlyTest.sdf , 21430272
OonlyTest/OonlyTest.v12.suo , 4608
OonlyTest/OonlyTest.vcxproj , 14609
OonlyTest/OonlyTest.vcxproj.filters , 3267
OonlyTest/OonlyTest.vcxproj.user , 611
OonlyTest/oonlytest_plugin_import.cpp , 492
OonlyTest/res.qrc , 139