使用Thread 的自定义定时器

import time
import sys
import signal
import datetime
import threading


# 定时器
def schedule_update():
    t = threading.Timer(0, event_func)
    t.setDaemon(True)
    t.start()


# 执行函数
def event_func():
    now_time = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    print(now_time)

    interval_time = delay_time()
    t = threading.Timer(interval_time, event_func)  # interval_time：定时时间， event_func： 执行的函数
    t.setDaemon(True)
    t.start()


# 取时间点 24小时以后执行
def delay_time():
    # now time
    now_time = datetime.datetime.now()
    # tomorrow time
    next_time = now_time + datetime.timedelta(days=+1)
    next_year = next_time.date().year
    next_month = next_time.date().month
    next_day = next_time.date().day
    # get tomorrow 00:00
    next_time = datetime.datetime.strptime(str(next_year) + "-" + str(next_month) + "-" + str(next_day) + " 00:00:00",
                                           "%Y-%m-%d %H:%M:%S")

    # get secondes
    delay_time = (next_time - now_time).total_seconds()
    return delay_time


def quit_sys(signum, frame):
    sys.exit()


if __name__ == "__main__":
    try:
        signal.signal(signal.SIGINT, quit_sys)
        signal.signal(signal.SIGTERM, quit_sys)
        schedule_update()
        print("schedule_update server starting up...\nHit Ctrl-C to quit.\n")
        while 1:
            time.sleep(1)
    except Exception as e:
        print(e)