python - 我怎样才能实现每x秒send_message发送x次？使用 tkinter 导入

Question

尝试每 x 秒发送一条消息，持续 x 周期。

我有一个调用send_message的按钮，用户可以输入systemFrequency和systemRunTime。

Publish_message 执行该操作。

def publish_message(self):
...#do something 

def send_message(self):
    systemFrequency = float(freqSettings.systemFrequency)
    systemRunTime = int(freqSettings.systemRunTime)
    global count

    count = 0

    if systemFrequency != 0:

        while (count < systemRunTime):
            self.schedule()

    else:
        self.publish_message()

def schedule(self):
    self.publish_message()
    self.increaseCount()

def increaseCount(self):
    global count
    count += 1

当前在执行publish_message之前没有等待x秒。

Answer 1

好的，你可以使用tkinter的after方法。它安排在给定的毫秒数后调用一个函数。

def publish_message(self):
...#do something 

def send_message(self):
    systemFrequency = float(freqSettings.systemFrequency)
    systemRunTime = int(freqSettings.systemRunTime)
    global count

    count = 0

    if systemFrequency != 0:
        self.schedule()
    else:
        self.publish_message()

def schedule(self):
    if count >= systemRunTime:
        return
    self.publish_message()
    self.increaseCount()
    # works if self.master is your window, change if it isn't
    self.master.after(1000, schedule, self)
    # after 1000 ms, call schedule function with parameter self

def increaseCount(self):
    global count
    count += 1