简单实用的Tab控件应用，是界面编程的基础，这是用SDK编写的，希望对大家有帮助。-Simple and practical application of the Tab control is the basis of the programming interface, which is written using the SDK, we hope to help.

QT5下通过按钮控件控制QtabWidget的在界面上出现的数目，适合初学者学习，也可以在此基础上增加更多的功能。-Under QT5 number appears on the screen by button controls Qtablewidget control, suitable for beginners to learn, you can also add more functions on this basis.