进程3

---

'''
进程间不能共享全局变量
p1里面有一个number的全局变量100，
p12里面有一个number的全局变量100，
主进程里面有一个number的全局变量100，
每个进程中都有一个100的number值，各自操作各自的，各个进程之间没有影响。
'''
from multiprocessing import Process
from time import sleep

number = 100


def task1():
    global number
    for i in range(20):
        number -= 1
        sleep(0.5)
    print('task1 执行之后number的值:{}'.format(number))


def task2():
    global number
    for i in range(30):
        number -= 1
        sleep(0.5)
    print('task2 执行之后number的值:{}'.format(number))


if __name__ == '__main__':
    p1 = Process(target=task1)
    p2 = Process(target=task2)

    p1.start()
    p2.start()

    p1.join()
    p2.join()

    print('主进程打印number的值:{}'.format(number))

---

# import re
#
# s = '''
# http://www.interoem.com/messageinfo.asp?id=35
# http://3995503.com/class/class09/news_show.asp?id=14
# http://lib.wzmc.edu.cn/news/onews.asp?id=769
# http://www.zy-ls.com/alfx.asp?newsid=377&id=6
# http://www.fincm.com/newslist.asp?id=415
# '''
#
# list1 = re.findall(r'(http://.+?/)',s)
# print(list1)
#
# import re
#
# S = ['http://www.interoem.com/messageinfo.asp?id=35'
#     , 'http://3995503.com/class/class09/news_show.asp?id=14',
#      'http://lib.wzmc.edu.cn/news/onews.asp?id=769',
#      'http://www.zy-ls.com/alfx.asp?newsid=377&id=6',
#      'http://www.fincm.com/newslist.asp?id=415']
# for i in S:
#     t = re.sub(r'(\.com/.+)', '.com/', i)
#     if t == i:
#         t = re.sub(r'(\.cn/.+)', '.cn/', i)
#     print(t)
x,y,z = 1
a=s=d=1