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python_schedule.py
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53 lines (40 loc) · 1.94 KB
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# _*_ coding: utf-8 _*_
"""
调度的使用
"""
import time
import datetime
from threading import Timer
from apscheduler.schedulers.blocking import BlockingScheduler
from apscheduler.schedulers.background import BackgroundScheduler
def print_hello():
print("TimeNow in func: %s" % (datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))
return
if __name__ == "__main__":
# 1. 使用Threading模块中的Timer
# t = Timer(2, print_hello)
#
# print("TimeNow start: %s" % (datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))
# t.start()
# print("TimeNow end: %s" % (datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))
# exit()
# 2. BlockingScheduler：在进程中运行单个任务，调度器是唯一运行的东西, 采用阻塞的方式
scheduler = BlockingScheduler()
# 采用固定时间间隔（interval）的方式，每隔5秒钟执行一次
scheduler.add_job(print_hello, "interval", seconds=5)
# 采用date的方式，在特定时间只执行一次
# scheduler.add_job(print_hello, "date", run_date=datetime.datetime.now() + datetime.timedelta(seconds=5))
# print("TimeNow start: %s" % (datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))
# scheduler.start()
# print("TimeNow end: %s" % (datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))
# exit()
# 3. BackgroundScheduler: 适合于要求任何在程序后台运行的情况，当希望调度器在应用后台执行时使用。采用非阻塞的方式
scheduler = BackgroundScheduler()
# 采用固定时间间隔（interval）的方式，每隔3秒钟执行一次
scheduler.add_job(print_hello, "interval", seconds=5)
# 这是一个独立的线程
# print("TimeNow start: %s" % (datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))
# scheduler.start()
# print("TimeNow end: %s" % (datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))
# while True:
# time.sleep(2)