我創建了一個類來定義 Tkinter 窗口及其小部件。每個按鈕都有幾個參數作為選項。我想在類中定義一個函數，而不是復制和粘貼創建和定位按鈕的兩行。之后我會在調用時將選項值作為參數傳遞并快速創建新按鈕。from tkinter import *class Window: def __init__(self, master): self.master = master master.title("UDP") self.label = Label(master, text="Window1") self.label.place(relx=0.9, rely=0.9) self.canvas = Canvas(master, bg="red", width=1160, height=772 ) self.canvas.grid() self.image = PhotoImage(file="E:\\Python\\world_map.png") self.canvas.create_image(0, 0, anchor=NW, image=self.image) self.one = Button(master, text="1", command=self.one, bg="red", bd=8, height=2, width=10, activebackground="blue") self.one.place(relx=0.6, rely=0.9) self.two = Button(master, text="2", command=self.two, bg="red", bd=8, height=2, width=10, activebackground="blue") self.two.place(relx=0.7, rely=0.9) self.three = Button(master, text="3", command=self.three, bg="red", bd=8, height=2, width=10, activebackground="blue") self.three.place(relx=0.8, rely=0.9)
1 回答
湖上湖
TA貢獻2003條經驗 獲得超2個贊
問題：從小tkinter部件繼承
使用從小tkinter.Button部件繼承的您自己的小部件對象。
而不是重復常見的參數，如：
self.one = Button(master,
text="1",
command=self.one,
bg="red", bd=8,
height=2,
width=10,
activebackground="blue")
self.one.place(relx=0.6,
rely=0.9)
定義您自己的class MyButton，它定義了類內部的所有公共參數Button。
class MyButton(tk.Button):
def __init__(self, parent, relx, rely, **kwargs):
super().__init__(parent, kwargs,
bg="red", bd=8, height=2, width=10, activebackground="blue")
self.place(relx=relx, rely=rely)
用法：
class App(tk.Tk):
def __init__(self):
super().__init__()
self.one = MyButton(self, 0.6, 0.9, text="1", command=self.one)
self.two = MyButton(self, 0.7, 0.9, text="2", command=self.two)
self.three = MyButton(self, 0.8, 0.9, text="3", command=self.three)
# Alternative
relx = 0.6
for cfg in [("1", self.one), ("2", self.two), ("3", self.three)]:
MyButton(self, relx, 0.9, text=cfg[0], command=cfg[1])
relx += 0.1
if __name__ == "__main__":
App().mainloop()
用 Python 測試：3.5
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