实现Qtreeview 重写model 实现model中添加按钮的功能

[{"title":"（ 47 个子文件 6.07MB ） 实现Qtreeview 重写model 实现model中添加按钮的功能","children":[{"title":"tree_view","children":[{"title":"tree_item.cpp <span style='color:#111;'> 1.01KB </span>","children":null,"spread":false},{"title":"tree_model.h <span style='color:#111;'> 2.23KB </span>","children":null,"spread":false},{"title":"tree_view.vcxproj.filters <span style='color:#111;'> 3.91KB </span>","children":null,"spread":false},{"title":"tree_view.vcxproj.user <span style='color:#111;'> 1.24KB </span>","children":null,"spread":false},{"title":"tree_view.sdf <span style='color:#111;'> 22.00MB </span>","children":null,"spread":false},{"title":"tree_delegate.h <span style='color:#111;'> 1.55KB </span>","children":null,"spread":false},{"title":"tree_view.h <span style='color:#111;'> 565B </span>","children":null,"spread":false},{"title":"Win32","children":[{"title":"Debug","children":[{"title":"tree_view.exe <span style='color:#111;'> 148.00KB 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</span>","children":null,"spread":false},{"title":"link.command.1.tlog <span style='color:#111;'> 7.25KB </span>","children":null,"spread":false},{"title":"link.read.1.tlog <span style='color:#111;'> 4.60KB </span>","children":null,"spread":false},{"title":"custombuild.write.1.tlog <span style='color:#111;'> 1.32KB </span>","children":null,"spread":false},{"title":"custombuild.command.1.tlog <span style='color:#111;'> 10.76KB </span>","children":null,"spread":false}],"spread":false},{"title":"tree_item.obj <span style='color:#111;'> 184.26KB </span>","children":null,"spread":false},{"title":"moc_tree_delegate.obj <span style='color:#111;'> 161.95KB </span>","children":null,"spread":false},{"title":"main.obj <span style='color:#111;'> 170.86KB </span>","children":null,"spread":false},{"title":"tree_view.Build.CppClean.log <span style='color:#111;'> 1.72KB </span>","children":null,"spread":false},{"title":"tree_model.obj <span style='color:#111;'> 288.25KB 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