python中有一个轻量级的定时任务调度的库:schedule。他可以完成每分钟,每小时,每天,周几,特定日期的定时任务。因此十分方便我们执行一些轻量级的定时任务.
代码如下:
1 importschedule2 importtime3
4 defjob(name):5 print("her name is :", name)6
7 name = "longsongpong"
8 schedule.every(10).minutes.do(job, name)9 schedule.every().hour.do(job, name)10 schedule.every().day.at("10:30").do(job, name)11 schedule.every(5).to(10).days.do(job, name)12 schedule.every().monday.do(job, name)13 schedule.every().wednesday.at("13:15").do(job, name)14
15 whileTrue:16 schedule.run_pending()17 time.sleep(1)
每隔十分钟执行一次任务
每隔一小时执行一次任务
每天的10:30执行一次任务
每隔5到10天执行一次任务
每周一的这个时候执行一次任务
每周三13:15执行一次任务
run_pending:运行所有可以运行的任务
schedule方法是串行的,也就是说,如果各个任务之间时间不冲突,那是没问题的;如果时间有冲突的话,会串行的执行命令
代码如下:
1 importschedule2 importtime3 importthreading4
5 defjob():6 print("I'm working... in job1 start")7 time.sleep(15)8 print("I'm working... in job1 end")9
10 defjob2():11 print("I'm working... in job2")12
13 schedule.every(10).seconds.do(job)14 schedule.every(10).seconds.do(job2)15
16 whileTrue:17 schedule.run_pending()18 time.sleep(1)
结果如下:
I’m working… in job1 start
I’m working… in job1 end
I’m working… in job2
如果要多线程并发运行
代码如下:
1 importschedule2 importtime3 importthreading4
5 defjob():6 print("I'm working... in job1 start")7 time.sleep(15)8 print("I'm working... in job1 end")9
10 defjob2():11 print("I'm working... in job2")12
13 defrun_threaded(job_func):14 job_thread = threading.Thread(target=job_func)15 job_thread.start()16
17 schedule.every(10).seconds.do(run_threaded,job)18 schedule.every(10).seconds.do(run_threaded,job2)19
20
21 whileTrue:22 schedule.run_pending()23 time.sleep(1)
结果如下:
1 I'm working... in job1 start
2 I'm working... in job2
3 I'm working... in job1 start
4 I'm working... in job2
5 I'm working... in job1 end
6 I'm working... in job1 start
7 I'm working... in job2
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