- 如果点击按钮,运行了一个比较耗时的操作,那么界面会卡死。
- import tkinter as tk
- import time
- def onclick(text, i):
- time.sleep(3)
- text.insert(tk.END, '按了第{}个按钮\n'.format(i))
- root = tk.Tk()
- text = tk.Text(root)
- text.pack()
- tk.Button(root, text='按钮1', command=lambda :onclick(text,1)).pack()
- tk.Button(root, text='按钮2', command=lambda :onclick(text,2)).pack()
- root.mainloop()
- 解决办法:
- 方式一、直接开线程
- import tkinter as tk
- import time
- import threading
- songs = ['爱情买卖','朋友','回家过年','好日子']
- movies = ['阿凡达','猩球崛起']
- def music(songs):
- global text # 故意的,注意与movie的区别
- for s in songs:
- text.insert(tk.END, "听歌曲:%s \t-- %s\n" %(s, time.ctime()))
- time.sleep(3)
- def movie(movies, text):
- for m in movies:
- text.insert(tk.END, "看电影:%s \t-- %s\n" %(m, time.ctime()))
- time.sleep(5)
- def thread_it(func, *args):
- '''将函数打包进线程'''
- # 创建
- t = threading.Thread(target=func, args=args)
- # 守护 !!!
- t.setDaemon(True)
- # 启动
- t.start()
- # 阻塞--卡死界面!
- # t.join()
- root = tk.Tk()
- text = tk.Text(root)
- text.pack()
- tk.Button(root, text='音乐', command=lambda :thread_it(music, songs)).pack()
- tk.Button(root, text='电影', command=lambda :thread_it(movie, movies, text)).pack()
- root.mainloop()
- 方式二、继承 threading.Thread 类
- import tkinter as tk
- import time
- import threading
- songs = ['爱情买卖','朋友','回家过年','好日子']
- movies = ['阿凡达','猩球崛起']
- def music(songs):
- global text # 故意的,注意与movie的区别
- for s in songs:
- text.insert(tk.END, "听歌曲:%s \t-- %s\n" %(s, time.ctime()))
- time.sleep(3)
- def movie(movies, text):
- for m in movies:
- text.insert(tk.END, "看电影:%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() # 在这里开始
- def run(self):
- self.func(*self.args)
- root = tk.Tk()
- text = tk.Text(root)
- text.pack()
- tk.Button(root, text='音乐', command=lambda :MyThread(music, songs)).pack()
- tk.Button(root, text='电影', command=lambda :MyThread(movie, movies, text)).pack()
- root.mainloop()
- 三、或者,搞一个界面类:
- import tkinter as tk
- import time
- import threading
- songs = ['爱情买卖','朋友','回家过年','好日子']
- films = ['阿凡达','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='音乐', command=lambda :self.thread_it(self.music, songs)).pack(expand=True, side=tk.RIGHT) # 注意lambda语句的作用!
- tk.Button(self, text='电影', command=lambda :self.thread_it(self.movie, films)).pack(expand=True, side=tk.LEFT)
- # 逻辑:听音乐
- def music(self, songs):
- for x in songs:
- self.text.insert(tk.END, "听歌曲:%s \t-- %s\n" %(x, time.ctime()))
- print("听歌曲:%s \t-- %s" %(x, time.ctime()))
- time.sleep(3)
- # 逻辑:看电影
- def movie(self, films):
- for x in films:
- self.text.insert(tk.END, "看电影:%s \t-- %s\n" %(x, time.ctime()))
- print("看电影:%s \t-- %s" %(x, time.ctime()))
- time.sleep(5)
- # 打包进线程(耗时的操作)
- @staticmethod
- def thread_it(func, *args):
- t = threading.Thread(target=func, args=args)
- t.setDaemon(True) # 守护--就算主界面关闭,线程也会留守后台运行(不对!)
- t.start() # 启动
- # t.join() # 阻塞--会卡死界面!
- app = Application()
- app.mainloop()
- 原文参考:https://www.cnblogs.com/hhh5460/p/5186819.html 致敬
- 希望对你有帮助
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