我已经设定了时间。在课堂上每秒钟睡一次觉。
在这件事上你有两个好处,第一,随时重复你的职能
import tkinter as tk
import threading
import queue
import datetime
import time
class MyThread(threading.Thread):
def __init__(self, queue,):
threading.Thread.__init__(self)
self.queue = queue
self.check = True
def stop(self):
self.check = False
def run(self):
while self.check:
x = "Doing stuff.. "
y = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
msg = x+y
time.sleep(1)
self.queue.put(msg)
class App(tk.Frame):
def __init__(self,):
super().__init__()
self.master.title("Hello World")
self.master.protocol("WM_DELETE_WINDOW",self.on_close)
self.queue = queue.Queue()
self.my_thread = None
self.init_ui()
def init_ui(self):
self.f = tk.Frame()
w = tk.Frame()
tk.Button(w, text="Start", command=self.launch_thread).pack()
tk.Button(w, text="Stop", command=self.stop_thread).pack()
tk.Button(w, text="Close", command=self.on_close).pack()
w.pack(side=tk.RIGHT, fill=tk.BOTH, expand=0)
self.f.pack(side=tk.LEFT, fill=tk.BOTH, expand=0)
def launch_thread(self):
if (threading.active_count()!=0):
self.my_thread = MyThread(self.queue)
self.my_thread.start()
self.periodiccall()
def stop_thread(self):
if(threading.active_count()!=1):
self.my_thread.stop()
def periodiccall(self):
self.checkqueue()
if self.my_thread.is_alive():
self.after(1, self.periodiccall)
else:
pass
def checkqueue(self):
while self.queue.qsize():
try:
ret = self.queue.get(0)
msg = "%s"%(ret)
print(msg)
except queue.Empty:
pass
def on_close(self):
if(threading.active_count()!=1):
self.my_thread.stop()
self.master.destroy()
if __name__ == '__main__':
app = App()
app.mainloop()
