Python暂停线程，手动执行并重置时间

Question

我需要每隔x秒调用一次函数，但可以选择手动调用它，在这种情况下需要重置时间。我也有东西是这样的：

import time 
import threading 

def printer(): 
    print("do it in thread") 

def do_sth(event): 
    while not event.is_set(): 
     printer() 
     time.sleep(10) 

event = threading.Event() 
print("t - terminate, m - manual") 
t = threading.Thread(target=do_sth, args=(event,)) 
t.daemon = True 
t.start() 
a = input() 
if a == 't': 
    event.set() 
elif a == 'm': 
    event.wait() 
    printer() 
    event.clear() 

更新： 我发现的东西，对我帮助很大：Python - Thread that I can pause and resume 现在我的代码看起来是这样的：

import threading, time, sys 

class ThreadClass(threading.Thread): 

    def __init__(self): 
     threading.Thread.__init__(self) 
     self.can_run = threading.Event() 
     self.thing_done = threading.Event() 
     self.thing_done.set() 
     self.can_run.set() 

    def run(self): 
     while True: 
      self.can_run.wait() 
      try: 
       self.thing_done.clear() 
       self.do_in_thread() 
      finally: 
       self.thing_done.set() 
      time.sleep(5) 

    def pause(self): 
     self.can_run.clear() 
     self.thing_done.wait() 

    def resume(self): 
     self.can_run.set() 

    def do_in_thread(self): 
     print("Thread...1") 
     time.sleep(2) 
     print("Thread...2") 
     time.sleep(2) 
     print("Thread...3") 


def do_in_main(): 
    print("Main...1") 
    time.sleep(2) 
    print("Main...2") 
    time.sleep(2) 
    print("Main...3") 

if __name__ == '__main__': 

    t = ThreadClass() 
    t.daemon = True 
    t.start() 
    while True: 
     i = input() 
     if i == 'm': 
      t.pause() 
      do_in_main() 
      t.resume() 
     elif i == 't': 
      sys.exit() 
      # t.join() 

唯一的问题是，当我结束，希望线程在退出前完成工作。

Answer 1

这可能是缓冲输出是罪魁祸首，因此 - 你正在得到你的预期行为。

我改变你的代码下面，它似乎做一些事情（如果这是你想要的东西，是由你）：

import time 
import threading 

def printer(): 
    print("do it in thread") 

def do_sth(event): 
    print("event.is_set:", event.is_set()) 
    while not event.is_set(): 
     printer() 
     time.sleep(10) 

event = threading.Event() 
print("t - terminate, m - manual") 
t = threading.Thread(target=do_sth, args=(event,)) 
print("t:",t) 
t.daemon = True 
t.start() 
a = input() 
if a == 't': 
    event.set() 
elif a == 'm': 
    event.wait() 
    printer() 
    event.clear()