python 多进程 并行 python多进程并发代码

这篇文章主要介绍了python多进程并行代码实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

代码：

from multiprocessing import Process
import sys, os
import time
def timetask(string):
while True:
print(string)
def works(func, arg, worknum):
proc_record = []
for i in range(worknum):
p = Process(target = func, args = (i,))
p.start()
proc_record.append(p)
for p in proc_record:
p.join()
if __name__ == '__main__':
arg = 5
procs = 4
works(timetask, arg, procs)

优化之后

代码：

from multiprocessing import Process
import sys, os
import time
from threading import Lock
def timetask(string):
mutex.acquire()
while True:
print(string)
if mutex.locked():
mutex.release()
mutex = Lock()
def works(func, arg, worknum):
proc_record = []
for i in range(worknum):
p = Process(target = func, args = (i,))
p.start()
proc_record.append(p)
for p in proc_record:
p.join()
if __name__ == '__main__':
arg = 5
procs = 4
works(timetask, arg, procs)

以上就是本文的全部内容，希望对大家的学习有所帮助。