Nokia's programming language Qt

For those who are learning Qt, it is very necessary to have an inheritance chart of all Qt classes.

1. What is qt
   Qt is a cross-platform C graphical user interface application framework. Object-oriented, allowing component programming

2. qt development
   Qt was first developed by Qiqu Technology in 1991
   Entered the commercial field in 1996, it is also the currently popular Linux desktop environment KDE The basis of
   In 2008, Trolltech was acquired by Nokia, and Qt was called Nokia's programming language.
   In 2012, Qt was acquired by Digia.
   In April 2014, the cross-platform integrated development environment Qt Creator3. 1.0 was released, and the official version of Qt5.3 was distributed on May 20 of the same year. So far, Qt has fully supported various platforms such as iOS, Android, and WP.
   The latest version of Qt is 5.5.0
   3. Supported platforms
   Windows – XP, Vista, Win7, Win8, Win2008, Win10
   Uinux/X11 – Linux, Sun Solaris, HP-UX , Compaq Tru64 UNIX, IBM AIX, SGI IRIX, FreeBSD, BSD/OS, and many other X11 platforms
   Macintosh – Mac OS X
   Embedded – Embedded Linux platform with framebuffer support, Windows CE
   4. Advantages of qt
   Cross-platform, supports almost all platforms
   The interface is simple and easy to use. Learning the QT framework is of reference for learning other frameworks.
   It simplifies the memory recycling mechanism to a certain extent.
   It has high development efficiency and can quickly build applications.
   There is a good community atmosphere and the market share is slowly increasing.
   Embedded development is possible.
   5. Installation
   First, go to the official download address: http://qt-project.org/downloadsThe corresponding version of qt, follow the installation guide to install

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Qt class inheritance diagram, qt class inheritance

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