tkinter 类继承的三种方式

tkinter class继承有三种方式。

提醒注意这几种继承的运行方式

一、继承 object

1.铺tk.Frame给parent：

说明：

• self.rootframe = tk.Frame(parent)
• tk.Label(self.rootframe)

import tkinter as tk

class MyApp(object):
    def __init__(self, parent):
        self.rootframe = tk.Frame(parent)
        self.rootframe.pack()

        self.setupUI()

    def setupUI(self):
        tk.Label(self.rootframe, text='标签').pack()

if __name__ == '__main__':
    root = tk.Tk()
    MyApp(root) # 注意这句
    root.mainloop()

2.直接使用root

说明：

• self.root = parent
• tk.Label(self.root)

import tkinter as tk

class MyApp(object):
    def __init__(self, parent, **kwargs):
        self.root = parent
        self.root.config(**kwargs)

        self.setupUI()

    def setupUI(self):
        tk.Label(self.root, text = '标签').pack()

if __name__ == '__main__':
    root = tk.Tk()
    app = test(root)
    root.mainloop()

二、继承 tk.Tk

import tkinter as tk

class MyApp(tk.Tk):

    def __init__(self):
        super().__init__()

        self.setupUI()

    def setupUI(self):
        tk.Label(self, text='标签').pack()

if __name__ == '__main__':
    MyApp().mainloop()

三、继承 tk.Frame

分两种情况

1.有parent

import tkinter as tk

class MyApp(tk.Frame):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.pack()

        self.setupUI()

    def setupUI(self):
        tk.Label(self, text='标签').pack()

if __name__ == '__main__':
    MyApp(tk.Tk()).mainloop()
    #MyApp().mainloop() # 也可以这样

注意： self.pack()

2.没有parent

import tkinter as tk

class MyApp(tk.Frame):

    def __init__(self):
        super().__init__()
        self.pack()

        self.setupUI()

    def setupUI(self):
        tk.Label(self, text='标签').pack()

if __name__ == '__main__':
    MyApp().mainloop()