python - 当 tkinter 窗口关闭时，python 程序并未结束

Question

我正在开发一个类似 GUI 的示波器项目。虽然 GUI 还没有准备好，但是我遇到了一个问题，当我关闭 TKinter 窗口时，程序没有关闭。它仍然在 python shell 中运行。我想这可能是关闭 tkinter 相关程序的方法。但我发现只要关闭 tkinter 窗口就会杀死程序。就我而言，即使关闭 tkinter 窗口后，程序仍在 python shell 中运行。我把我的代码放在这里，请看看问题出在哪里？

from tkinter import *
from matplotlib import pyplot as plt
import matplotlib.animation as animation
from matplotlib import style
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import numpy as np

root = Tk()
root.geometry("800x500+100+100")
root.title('root window')

frame = Frame(root, borderwidth=1,bg="#0DBDAB") ## This is the frame in which plot will be shown
frame.place(relx=1.0/3,rely=0.5, anchor="center", relwidth=0.60,relheight=0.8)
xar = [0]
yar = [0]
k=0.2  ### This is just a constant to make plot smoother
style.use('ggplot')
fig = plt.figure(figsize=(20,20), dpi=100)
ax1 = fig.add_subplot(1, 1, 1)
ax1.set_ylim(-1, 1)
line, = ax1.plot(xar, yar, 'r')

## It will not plot regularly instead add line for new data
def animate(i):
    ax1.set_xlim(left=max(0,i-20), right=i+1)
    yar.append(np.sin(i*k))
    xar.append(i)
    line.set_data(xar,yar)
    return line,

plotcanvas = FigureCanvasTkAgg(fig, frame)
plotcanvas.get_tk_widget().pack(side=BOTTOM,fill=BOTH,expand=True)
ani = animation.FuncAnimation(fig, animate, interval=1000, blit=False)

root.mainloop()

Answer 1

我做了一个小改动，无论如何你必须使用这个

root.protocol("WM_DELETE_WINDOW", quit_me)

见下文，在我的 debian 上，从终端启动脚本并关闭它工作的 tkinter 窗口。

from tkinter import *
from matplotlib import pyplot as plt
import matplotlib.animation as animation
from matplotlib import style
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import numpy as np

def quit_me():
    print('quit')
    root.quit()
    root.destroy()

root = Tk() 
root.protocol("WM_DELETE_WINDOW", quit_me)
root.geometry("800x500+100+100")
root.title('root window')