qt 计时器 00:00:00形式

[{"title":"（ 20 个子文件 406KB ） qt 计时器 00:00:00形式","children":[{"title":"untitled1","children":[{"title":"Makefile <span style='color:#111;'> 6.67KB </span>","children":null,"spread":false},{"title":"mainwindow.cpp <span style='color:#111;'> 1.00KB </span>","children":null,"spread":false},{"title":"release","children":null,"spread":false},{"title":"Makefile.Debug <span style='color:#111;'> 6.24KB </span>","children":null,"spread":false},{"title":"debug","children":[{"title":"untitled1.exe <span style='color:#111;'> 770.64KB </span>","children":null,"spread":false},{"title":"mainwindow.o <span style='color:#111;'> 205.14KB </span>","children":null,"spread":false},{"title":"main.o <span style='color:#111;'> 112.42KB </span>","children":null,"spread":false},{"title":"moc_mainwindow.cpp <span style='color:#111;'> 2.47KB </span>","children":null,"spread":false},{"title":"moc_mainwindow.o <span style='color:#111;'> 123.75KB </span>","children":null,"spread":false}],"spread":true},{"title":"untitled1.qmlproject <span style='color:#111;'> 467B </span>","children":null,"spread":false},{"title":"untitled1.qml <span style='color:#111;'> 264B </span>","children":null,"spread":false},{"title":"mainwindow.h <span style='color:#111;'> 483B </span>","children":null,"spread":false},{"title":"debugmainwindow.o <span style='color:#111;'> 205.14KB </span>","children":null,"spread":false},{"title":"untitled1.qmlproject.user <span style='color:#111;'> 3.96KB </span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'> 189B </span>","children":null,"spread":false},{"title":"debugmain.o <span style='color:#111;'> 112.42KB </span>","children":null,"spread":false},{"title":"ui_mainwindow.h <span style='color:#111;'> 3.49KB </span>","children":null,"spread":false},{"title":"Makefile.Release <span style='color:#111;'> 6.31KB </span>","children":null,"spread":false},{"title":"untitled1.pro.user <span style='color:#111;'> 18.62KB </span>","children":null,"spread":false},{"title":"mainwindow.ui <span style='color:#111;'> 2.26KB </span>","children":null,"spread":false},{"title":"untitled1.pro <span style='color:#111;'> 331B </span>","children":null,"spread":false}],"spread":false}],"spread":true}]