0、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()
转载于:https://www.cnblogs.com/hhh5460/p/5186819.html
