Python 核心编程笔记五

Python 2017-08

这里简要记录 Python核心编程 读书笔记 整段代码 可以直接运行

CODE-多线程同步-Threading

# -*- coding:gb18030 -*-
# 线程同步 Threading
import threading
from time import sleep, ctime
loops = [4, 2]
def loop(nloop, during):
    print 'Lopper ', nloop, 'start at: ', ctime()
    sleep(during)
    print 'Lopper ', nloop, 'stop at: ', ctime()
def main():
    print 'Lopper start at: ', ctime()
    nloops = range(len(loops))
    threads = []
    for i in nloops:
        t = threading.Thread(target=loop, args=(i, loops[i]))
        threads.append(t)
    for i in nloops:  # Start threads
        threads[i].start()
    for i in nloops:  # Wait for all
        threads[i].join()
    print 'Lopper stop at: ', ctime()
if __name__ == '__main__':
    main()

RESULT

C:\Python27\python.exe H:/workspace/python-hw/hw-6.py
Lopper start at:  Wed Aug 09 18:39:10 2017
Lopper  0 start at:  Wed Aug 09 18:39:10 2017
Lopper  1 start at:  Wed Aug 09 18:39:10 2017
Lopper  1 stop at:  Wed Aug 09 18:39:12 2017
Lopper  0 stop at:  Wed Aug 09 18:39:14 2017
Lopper stop at:  Wed Aug 09 18:39:14 2017
Process finished with exit code 0