1、如果點擊按鈕，運行了一個比較耗時的操作，那麼界面會卡死
<code>import tkinter as tk
import time
def onclick(text, i):
time.sleep(3)
text.insert(tk.END, '按了第{}個按鈕\\n'.format(i))
root = tk.Tk()
text = tk.Text(root)
text.pack()
tk.Button(root, text='按鈕1', command=lambda :onclick(text,1)).pack()
tk.Button(root, text='按鈕2', command=lambda :onclick(text,2)).pack()
root.mainloop()/<code>
解決辦法：
方式一、直接開線程
<code>技術討論群：1029344413 分享源碼、視頻素材import tkinter as tk
import time
import threading
songs = ['愛情買賣','朋友','回家過年','好日子']
movies = ['阿凡達','猩球崛起']
def music(songs):
global text # 故意的，注意與movie的區別
for s in songs:
text.insert(tk.END, "聽歌曲：%s \\t-- %s\\n" %(s, time.ctime()))
time.sleep(3)
def movie(movies, text):
for m in movies:
text.insert(tk.END, "看電影：%s \\t-- %s\\n" %(m, time.ctime()))
time.sleep(5)
def thread_it(func, *args):
'''將函數打包進線程'''
# 創建
t = threading.Thread(target=func, args=args)
# 守護 !!!
t.setDaemon(True)
# 啟動
t.start()
# 阻塞--卡死界面！
# t.join()
root = tk.Tk()
text = tk.Text(root)
text.pack()
tk.Button(root, text='音樂', command=lambda :thread_it(music, songs)).pack()
tk.Button(root, text='電影', command=lambda :thread_it(movie, movies, text)).pack()
root.mainloop()/<code>
方式二、繼承 threading.Thread 類
<code>import tkinter as tk
import time
import threading
songs = ['愛情買賣','朋友','回家過年','好日子']
movies = ['阿凡達','猩球崛起']
def music(songs):
global text # 故意的，注意與movie的區別
for s in songs:
text.insert(tk.END, "聽歌曲：%s \\t-- %s\\n" %(s, time.ctime()))
time.sleep(3)
def movie(movies, text):
for m in movies:
text.insert(tk.END, "看電影：%s \\t-- %s\\n" %(m, time.ctime()))
time.sleep(5)
class MyThread(threading.Thread):
def __init__(self, func, *args):
super().__init__()
self.func = func
self.args = args
self.setDaemon(True)
self.start() # 在這裡開始
def run(self):
self.func(*self.args)
root = tk.Tk()
text = tk.Text(root)
text.pack()
tk.Button(root, text='音樂', command=lambda :MyThread(music, songs)).pack()
tk.Button(root, text='電影', command=lambda :MyThread(movie, movies, text)).pack()
root.mainloop()/<code>
三、或者，搞一個界面類：
<code>import tkinter as tk
import time
import threading
songs = ['愛情買賣','朋友','回家過年','好日子']
films = ['阿凡達','猩球崛起']
class Application(tk.Tk):
def __init__(self):
super().__init__()
self.createUI()
# 生成界面
def createUI(self):
self.text = tk.Text(self)
self.text.pack()
tk.Button(self, text='音樂', command=lambda :self.thread_it(self.music, songs)).pack(expand=True, side=tk.RIGHT) # 注意lambda語句的作用！
tk.Button(self, text='電影', command=lambda :self.thread_it(self.movie, films)).pack(expand=True, side=tk.LEFT)
# 邏輯：聽音樂
def music(self, songs):
for x in songs:
self.text.insert(tk.END, "聽歌曲：%s \\t-- %s\\n" %(x, time.ctime()))
print("聽歌曲：%s \\t-- %s" %(x, time.ctime()))
time.sleep(3)
# 邏輯：看電影
def movie(self, films):
for x in films:
self.text.insert(tk.END, "看電影：%s \\t-- %s\\n" %(x, time.ctime()))
print("看電影：%s \\t-- %s" %(x, time.ctime()))
time.sleep(5)
# 打包進線程（耗時的操作）
@staticmethod
def thread_it(func, *args):
t = threading.Thread(target=func, args=args)
t.setDaemon(True) # 守護--就算主界面關閉，線程也會留守後臺運行（不對!）
t.start() # 啟動
# t.join() # 阻塞--會卡死界面！
app = Application()
app.mainloop()/<code>
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