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This article mainly explains "how to use Python to achieve a roulette draw function", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "how to use Python to achieve a roulette draw function"!

A brief introduction to Python GUI programming

The Tkinter module (Tk interface) is the interface of Python's standard Tk GUI toolkit. TK and Tkinter can be used on most Unix platforms, as well as in Windows and Macintosh systems. Subsequent versions of Tk8.0 can implement the native window style and run well on most platforms.

WxPython is an open source software and an excellent GUI graphics library of Python language, which allows Python programmers to easily create a complete and functional GUI user interface.

Pyqt5 is a framework for binding Python to Digia QT5 applications. It can be used with Python 2 and 3. As a module of Python, pyqt5 has more than 620 classes and 6000 functions and methods. This is a cross-platform toolkit that runs on all major operating systems, including UNIX,Windows,Mac OS.

Pyqt5 is a dual license, and developers can choose between the LGPL agreement and the commercial license, that is, the open source free version or the paid version. The commercial version of Qt usually contains libraries that are not available in the open source version.

QT brings us the most convenient advantage is that it has a QT Desiginer, this designer can facilitate us to carry out page layout, it can be said that in Tkinter, you need a bunch of code to complete the page layout, in QT, as long as drag a control to do it.

II. Summary of popular GUI framework

QT's advantage is that there is a page layout design designer QT Desiginer, drag controls can be used for page layout design, beautification, etc., beautiful interface, multiple platforms can be used, documents and tutorials are rich, but there is a commercial use of copyright issues, the need for authorization, larger volume. To design this kind of page, Tkinter needs to write its own code to define the button and use the code to complete the page layout, because Tkinter does not provide a graphical interface designer, but the advantage of Tikinter is easy to learn and good performance.

QT may be the most powerful, but it may also be the most complex. If you want to commercially promote software designed with Pyqt5, you need to make sure you understand the QT license correctly or are prepared to pay a large fee, but for research and study, you can choose the open source version of QT.

WxPython can be said to be a compromise between QT and Tkinter, it is free, the source code is open, allowing it to be used in commercial products, you can use it and share it for free. It also provides a designer wxFormbuilder similar to QT Designer. Can be said to be a compressed version of QT, but there should be no lack of features, with mature and rich packages, cross-platform, can be run under Unix,windows,MAC, the entry is simple, the documentation is very detailed, and the official Demo.

These three kinds of mainstream interface GUI design framework, in practical application, we can choose to use according to their own actual needs.

Third, code demonstration

Below, we use Tkinter to define interface controls to implement a simple interface design for roulette games, and then draw the game, as shown below:

Import tkinterimport timeimport threadingfrom random import randomfrom tkinterimport messagebox as tkMessageBox class choujiang: # initialize the magic method def _ _ init__ (self): # prepare the interface self.root = tkinter.Tk () self.root.title ('lowB turntable') self.root.minsize 300) # declare whether to press the starting variable self.isloop = False self.newloop = False self.value = [] # call the interface setting method self.setwindow () self.root.mainloop () # interface layout method def setwindow (self): # start stop button self.btn_start = tkinter.Button (self.root Text='start/stop', command=self.newtask) self.btn_start.place (text='1', bg='red' 125, width=70, height=70) self.btn1 = tkinter.Button (self.root, text='1', bg='red') self.btn1.place (self.root, text='2', bg='white' 20, width=50, height=50) self.btn2 = tkinter.Button (self.root, text='2', bg='white') self.btn2.place (x = self.root, text='3') self.btn3 = tkinter.Button (self.root, text='3') Bg='white') self.btn3.place (Xerox 160, YYZ 20, width=50, height=50) self.btn4 = tkinter.Button (self.root, text='3', bg='white') self.btn4.place (XY 230, YY 20, width=50, height=50) self.btn5 = tkinter.Button (self.root, text='3', bg='white') self.btn5.place (x x, Y Y 90, width=50, height=50) self.btn6 = tkinter.Button (self.root, text='2') Bg='white') self.btn6.place (xylene 230, yearly 230, width=50, height=50) self.btn7 = tkinter.Button (self.root, text='1', bg='white') self.btn7.place (xylene 230, yearly 230, width=50, height=50) self.btn8 = tkinter.Button (self.root, text='3', bg='white') self.btn8.place (xylene 160, yearly 230, width=50, height=50) self.btn9 = tkinter.Button (self.root, text='2') Bg='white') self.btn9.place (xylene 90, yttrium 230, width=50, height=50) self.btn10 = tkinter.Button (self.root, text='3', bg='white') self.btn10.place (xylene 20, yearly 230, width=50, height=50) self.btn11 = tkinter.Button (self.root, text='1', bg='white') self.btn11.place (xylene 20, yay 160, width=50, height=50) self.btn12 = tkinter.Button (self.root, text='3') Bg='white') self.btn12.place (Xerox 20, yearly 90, width=50, height=50) # make up a list of all options self.girlfrends = [self.btn1, self.btn2, self.btn3, self.btn4, self.btn5, self.btn6, self.btn7, self.btn8, self.btn9, self.btn10, self.btn11 Self.btn12] def rounds (self): # determine whether to start the loop if self.isloop = = True: return # initialization count variable I = 0 # endless loop while True: if self.newloop = = True: self.newloop = False self.value = self .roomfrends [I-1] ['text'] if self.value = =' 1percent: tkMessageBox.showinfo ("Winning Result") "congratulations on winning the first prize!") If self.value = '2percent: tkMessageBox.showinfo ("Winning Result", "Congratulations on winning the second prize!") If self.value: tkMessageBox.showinfo ("Winning Result", 'Congratulations on winning the third prize!') Return # delay operation time.sleep (0.1) # change the background of all components to white for x in self.girlfrends: X ['bg'] =' white' # change the color of the component corresponding to the current value self.girlfrends [I] ['bg'] =' red' # variable + 1 I + = 1 # if I is greater than the maximum index directly zeroing if I > = len (self.girlfrends): I = 0 # create a new thread function def newtask (self): if self.isloop = = False: # build thread t = threading .Thread (target=self.rounds) # start thread running t.start () # set loop start flag self.isloop = True elif self.isloop = = True: self.isloop = False self.newloop = True# turntable effect c = choujiang () so far I believe you have a deeper understanding of "how to use Python to achieve a roulette draw function". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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