QT的QTreeWidget有checkbox时轻松选中

[{"title":"（12个子文件265KB）QT的QTreeWidget有checkbox时轻松选中","children":[{"title":"SeeTreeWidget","children":[{"title":"PureDialogBase.pro <span style='color:#111;'>430B</span>","children":null,"spread":false},{"title":"Makefile.Debug <span style='color:#111;'>6.43KB</span>","children":null,"spread":false},{"title":"PureDialogBase.pro.user <span style='color:#111;'>20.20KB</span>","children":null,"spread":false},{"title":"test","children":[{"title":"MainDialog.h <span style='color:#111;'>309B</span>","children":null,"spread":false},{"title":"MainDialog.ui <span style='color:#111;'>2.74KB</span>","children":null,"spread":false},{"title":"MyTreeWidget.h <span style='color:#111;'>397B</span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'>189B</span>","children":null,"spread":false},{"title":"MyTreeWidget.cpp <span style='color:#111;'>1.77KB</span>","children":null,"spread":false},{"title":"MainDialog.cpp <span style='color:#111;'>762B</span>","children":null,"spread":false}],"spread":true},{"title":"Makefile.Release <span style='color:#111;'>6.53KB</span>","children":null,"spread":false},{"title":"debug","children":[{"title":"PureDialogBase.exe <span style='color:#111;'>1.12MB</span>","children":null,"spread":false}],"spread":true},{"title":"Makefile <span style='color:#111;'>6.08KB</span>","children":null,"spread":false},{"title":"release","children":null,"spread":false}],"spread":true}],"spread":true}]