Schematic introduction to QT programming under Windows

QT Creator Download

Http://pan.baidu.com/s/1hsqBQPe

Filename

qt-opensource-windows-x86-mingw492-5.6.0

An installation

Quite large, after being installed 5G.

Two Hello World programs 1 simple signals and slots











Place a push button on the form, and change the button text to "Exit";

Locate the signal and slot editor;

Edit the following signals and slots;
Run, click the button to exit the program.

2 Hello World program new Empty project;
Add CPP file;


Operation Result:

#include <QApplication> #include <qlabel>int main (int argc, char *argv[]) {        qapplication A (argc, argv); C1/>qlabel *label = new Qlabel ("Hello, world!");        Label->show ();        return a.exec ();}

Error:
Qapplication:no such file or directory
The workaround is to add a line of QT + = widgets to the Helloworld.pro project file

SOURCES + =     HELLOWORLD.CPPQT + widgets

QT Tutorial Resource Links
http://blog.51cto.com/zt/20/1/
QT Learning Path: from Beginner to proficient

Schematic introduction to QT programming under Windows