Tkinter 中的线程

Question

我在 Tkinter 中遇到线程问题。我读到应该在除主 GUI 线程之外的单独线程中完成事情。每当我单击按钮时，它会在线程停止后关闭。我认为我没有正确实现线程。

from Tkinter import *
from scrapy import cmdline
import thread

def scrapeMe():
    if(RadioVar.get() == 1):
        thread.start_new_thread(cmdline.execute("scrapy crawl s1".split()))
    if(RadioVar.get() == 2):
        thread.start_new_thread(cmdline.execute("scrapy crawl s2".split()))


root = Tk()

B1 = Button(root, text="Scrape", command = scrapeMe)

RadioVar = IntVar()

R1 = Radiobutton(root, text = "1", variable = RadioVar, value=1)
R2 = Radiobutton(root, text = "2", variable = RadioVar, value=2)


B1.pack()
R1.pack()
R2.pack()
root.mainloop()

Answer 1

我解决了大部分问题。第一个是，您以错误的方式使用了“线程”。我不确定如何使用scrapy，所以我会把它留给你或其他人。至少，我让它为你运行。

from tkinter import *
from scrapy import cmdline
import threading

def scrapeMe():
    if(RadioVar.get() == 1):
        threading.Thread(cmdline.execute("scrapy crawl s1".split()))
    if(RadioVar.get() == 2):
        threading.Thread(cmdline.execute("scrapy crawl s2".split()))


root = Tk()

B1 = Button(root, text="Scrape", command = scrapeMe)

RadioVar = IntVar()

R1 = Radiobutton(root, text = "1", variable = RadioVar, value=1)
R2 = Radiobutton(root, text = "2", variable = RadioVar, value=2)


B1.pack()
R1.pack()
R2.pack()
root.mainloop()