如何更改 Tkinter 按鈕狀態
Tkinter 按鈕有兩種狀態，
NORMAL- 使用者可以單擊該按鈕DISABLED- 該按鈕不可單擊
try:
import Tkinter as tk
except:
import tkinter as tk
app = tk.Tk()
app.geometry("300x100")
button1 = tk.Button(app, text="Button 1",
state=tk.DISABLED)
button2 = tk.Button(app, text="EN/DISABLE Button 1")
button1.pack(side=tk.LEFT)
button2.pack(side=tk.RIGHT)
app.mainloop()
左側按鈕已禁用（變灰），右側按鈕正常。
可以用類似於字典的方法或類似於配置的方法來修改狀態。
try:
import Tkinter as tk
except:
import tkinter as tk
def switchButtonState():
if (button1['state'] == tk.NORMAL):
button1['state'] = tk.DISABLED
else:
button1['state'] = tk.NORMAL
app = tk.Tk()
app.geometry("300x100")
button1 = tk.Button(app, text="Python Button 1",
state=tk.DISABLED)
button2 = tk.Button(app, text="EN/DISABLE Button 1",
command = switchButtonState)
button1.pack(side=tk.LEFT)
button2.pack(side=tk.RIGHT)
app.mainloop()
通過單擊 button2，它呼叫 switchButtonState 函式將 button1 狀態從 DISABLED 切換到 NORMAL，或者反向切換。
state 是 Tkinter 按鈕控制元件的一個選項。所有的 Button 控制元件的選項都是 Button 字典的鍵值。
def switchButtonState():
if (button1['state'] == tk.NORMAL):
button1['state'] = tk.DISABLED
else:
button1['state'] = tk.NORMAL
通過更新 Button 字典的 state 的值，按鈕的 state 狀態得到了更新。
state 還可以通過使用更改 Button 物件的 config 方法來更改。因此，switchButtonState() 函式也可以按以下方式實現，
def switchButtonState():
if (button1['state'] == tk.NORMAL):
button1.config(state=tk.DISABLED)
else:
button1.config(state=tk.NORMAL)
甚至我們可以更簡單的使用字串 normal 和 disabled 來切換狀態，而不非得用 tk.NORMAL 和 tk.DISABLED。
Founder of DelftStack.com. Jinku has worked in the robotics and automotive industries for over 8 years. He sharpened his coding skills when he needed to do the automatic testing, data collection from remote servers and report creation from the endurance test. He is from an electrical/electronics engineering background but has expanded his interest to embedded electronics, embedded programming and front-/back-end programming.
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