Qt 模拟批量传输文件、实时更新进度

[{"title":"（ 9 个子文件 5KB ） Qt 模拟批量传输文件、实时更新进度","children":[{"title":"MultyThread","children":[{"title":"main.cpp <span style='color:#111;'> 285B </span>","children":null,"spread":false},{"title":"worker.h <span style='color:#111;'> 508B </span>","children":null,"spread":false},{"title":"mainwindow.h <span style='color:#111;'> 1.07KB </span>","children":null,"spread":false},{"title":"cusfileinfo.h <span style='color:#111;'> 248B </span>","children":null,"spread":false},{"title":"MultyThread.pro.user <span style='color:#111;'> 23.35KB </span>","children":null,"spread":false},{"title":"mainwindow.cpp <span style='color:#111;'> 4.55KB </span>","children":null,"spread":false},{"title":"mainwindow.ui <span style='color:#111;'> 1.40KB </span>","children":null,"spread":false},{"title":"worker.cpp <span style='color:#111;'> 707B </span>","children":null,"spread":false},{"title":"MultyThread.pro <span style='color:#111;'> 1.08KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]