QT Graphiview中的graphicItem的各种变化

[{"title":"（ 332 个子文件 993KB ） QT Graphiview中的graphicItem的各种变化","children":[{"title":".gitignore <span style='color:#111;'> 242B </span>","children":null,"spread":false},{"title":"rulebar.cpp <span style='color:#111;'> 8.75KB </span>","children":null,"spread":false},{"title":"app.qrc <span style='color:#111;'> 1.39KB </span>","children":null,"spread":false},{"title":"drawtool.cpp <span style='color:#111;'> 16.48KB </span>","children":null,"spread":false},{"title":"align_vcenter.png <span style='color:#111;'> 1.19KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]