在开始写代码以前，对PyQt5整体大致了解一下还是有必要的。这方面的东西看看PyQt5官方给出的文档就好，下面就是我从文中截取的部分内容：
Introduction
PyQt5 is a set of Python bindings for v5 of the Qt application framework from The Qt Company.
Qt is a set of C++ libraries and development tools that includes platform independent abstractions for graphical user interfaces, networking, threads, regular expressions, SQL databases, SVG, OpenGL, XML, user and application settings, positioning and location services, short range communications (NFC and Bluetooth) and access to the cloud. PyQt5 implements over 1000 of these classes as a set of Python modules.
components
跑了一天，困了，明天再总结，晚安~
PyQt5 Introduction and components
原文：http://www.cnblogs.com/pyjogger/p/4694738.html