QT做的简易画板

[{"title":"（ 6 个子文件 7KB ） QT做的简易画板","children":[{"title":"myPenBook","children":[{"title":"myPenBook.pro.user <span style='color:#111;'> 31.54KB </span>","children":null,"spread":false},{"title":"widget.ui <span style='color:#111;'> 2.62KB </span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'> 179B </span>","children":null,"spread":false},{"title":"myPenBook.pro <span style='color:#111;'> 370B </span>","children":null,"spread":false},{"title":"widget.cpp <span style='color:#111;'> 6.67KB </span>","children":null,"spread":false},{"title":"widget.h <span style='color:#111;'> 1.85KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]