问题
I am using a qDebug() of Qt Framework for printf something on the screen. It works just fine when I run application from Qt Creator, but when I try to execute it from Windows cmd it shows nothing. Why that happens?
回答1:
You have to add
CONFIG += console
to your projects .pro file and do not forget to clean and build (rebuild) your project.
回答2:
Run your application with
application.exe > log.txt 2>&1
It redirects stderr to stdout and stdout to a file.
来源：https://stackoverflow.com/questions/13431734/qt-qdebug-doesnt-work-in-windows-shell