Python 入門指南 5.0
exercise3304.py
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46 | # 從標準程式庫引入 Tk
from tkinter import *
# 從 tkinter 引入 ttk
from tkinter import ttk
# 練習用的視窗類別
class Application(ttk.Frame):
def __init__(self, master):
ttk.Frame.__init__(self, master)
self.winfo_toplevel().title("練習的視窗")
self.grid()
self.createWidgets()
self.style = ttk.Style()
self.style.theme_use("alt")
for child in self.winfo_children():
child.grid_configure(padx=5, pady=3)
def createWidgets(self):
self.combobox = ttk.Combobox(self)
self.combobox["values"] = ["選我1", "選我2", "選我3", "選我4"]
self.combobox["width"] = 20
self.combobox.bind("<<ComboboxSelected>>", self.do_something)
self.combobox.grid(row=0, column=0, sticky=N)
self.label = Label(self)
self.label["text"] = ""
self.label["width"] = 20
self.label.grid(row=1, column=0, sticky=N)
def do_something(self, event=None):
self.label["text"] = self.combobox.get()
# 執行部分
if __name__ == '__main__':
# 建立 Tk 應用物件
root = Tk()
# 建立視窗物件
app = Application(master=root)
# 呼叫維持視窗運作的 mainloop()
root.mainloop()
# 檔名: exercise3304.py
# 說明:《Python入門指南》的練習
# 網站: http://kaiching.org
# 作者: 張凱慶
# 時間: 2023 年 11 月
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