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C++ to Qt

Qt is the library of C++, and Qt extends it a little bit based on ansi C++.

But the domestic seems to be more impetuous, a lot of people who learn Qt even don't seem to know how to compile the basic C++. This article abandons the shackles of IDE or qmake, cmake and other tools, and tries to transition from the compilation of C++ to the compilation of Qt step by step through a few examples.

This article deals with the most basic things, perhaps it can be said that as long as you use C++ Qt, no matter which tool (qmake, cmake, boost.build, qtcreator, vs2008, Eclipse,...), the content of this article needs to be understood (although when we really write programs, we will not directly use the C++ compiler to compile Qt programs).

If you are afraid of the command line.

Example 1: a simple console program

A very simple example that doesn't use the Qt extension: (that is, this is a normal C++ program)

# include # include int main (int argc, char** argv) {QCoreApplication app (argc, argv); qDebug ()

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