函数版本

#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
"""
@File    :   d.py
@Time    :   2022-09-05 09:17
@Author  :   坐公交也用券
@Version :   1.0
@Contact :   faith01238@hotmail.com
@Homepage : https://liumou.site
@Desc    :   当前文件作用
"""
import threading
from multiprocessing import Pool, cpu_count, Manager


def start(cpus, counter_, list_):
	"""
	开始处理
	:param cpus: CPU 数量
	:param counter_: 计数器(字典)
	:param list_: 列表
	:return:
	"""
	threads = []
	for i in range(cpus):
		t = threading.Thread(target=get_one_res, args=(cpus, counter_, i))
		t.start()
		threads.append(t)
	list_.append("CPU ID: %s" % cpus)
	for t in threads:
		t.join()


def get_one_res(cpus, counter_, j):
	"""
	
	:param cpus: Cpu ID
	:param counter_: 共享字典
	:param j:进程 ID
	:return:
	"""
	# time.sleep(random.randint(1, 10))
	# with lock:
	a = int(counter_['a']) + 1
	counter_['a'] = a
	print("Counter:{0}, 进程:{1} 线程:{2}".format(counter_['a'], cpus, j))


if __name__ == '__main__':
	pool = Pool(cpu_count())
	Counter = Manager().dict()
	lock = Manager().Lock()
	data_list = Manager().list()
	print("开始前列表数量: ", len(data_list))
	# 嵌套字典
	Counter["a"] = '0'
	print("开始前: ", Counter['a'])
	for i in range(cpu_count()):
		res = pool.apply_async(func=start, args=(i, Counter, data_list,))
	pool.close()
	pool.join()
	print("结束后: ", Counter['a'])
	for i in data_list:
		print(i)
	print("结束后列表数量: ", len(data_list))

效果

/usr/bin/python3.7 /media/liumou/exfat/code/001/f9/d.py 
开始前列表数量:  0
开始前:  0
Counter:1, 进程:1 线程:0
Counter:2, 进程:3 线程:0Counter:3, 进程:3 线程:1

Counter:3, 进程:3 线程:2
Counter:4, 进程:4 线程:0
Counter:4, 进程:7 线程:1
Counter:5, 进程:7 线程:0
Counter:6, 进程:6 线程:0
Counter:7, 进程:7 线程:2
Counter:8, 进程:7 线程:3
Counter:9, 进程:5 线程:0
Counter:10, 进程:4 线程:1
Counter:12, 进程:7 线程:4
Counter:12, 进程:5 线程:2
Counter:12, 进程:5 线程:1
Counter:13, 进程:7 线程:5
Counter:14, 进程:4 线程:2Counter:14, 进程:2 线程:0

Counter:14, 进程:7 线程:6
Counter:15, 进程:4 线程:3
Counter:16, 进程:2 线程:1
Counter:17, 进程:5 线程:3
Counter:17, 进程:5 线程:4
Counter:18, 进程:6 线程:2
Counter:18, 进程:6 线程:1
Counter:19, 进程:6 线程:4
Counter:19, 进程:6 线程:5
Counter:19, 进程:6 线程:3
结束后:  19
CPU ID: 0
CPU ID: 1
CPU ID: 3
CPU ID: 4
CPU ID: 7
CPU ID: 2
CPU ID: 5
CPU ID: 6
结束后列表数量:  8

封装类

源码

#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
"""
@File    :   Pool_共享.py
@Time    :   2022-09-05 11:28
@Author  :   坐公交也用券
@Version :   1.0
@Contact :   faith01238@hotmail.com
@Homepage : https://liumou.site
@Desc    :   当前文件作用
"""
import threading
from multiprocessing import Pool, cpu_count, Manager


class Sums:
	def __init__(self):
		self.dic = {}
		self.list_ = []

	def start(self, cpus, counter_, list_):
		"""
		开始处理
		:param cpus: CPU 数量
		:param counter_: 计数器(字典)
		:param list_: 列表
		:return:
		"""
		threads = []
		for i in range(cpus):
			t = threading.Thread(target=self.get_one_res, args=(cpus, counter_, i))
			t.start()
			threads.append(t)
		list_.append("CPU ID: %s" % cpus)
		for t in threads:
			t.join()

	def get_one_res(self, cpus, counter_, j):
		"""

		:param cpus: Cpu ID
		:param counter_: 共享字典
		:param j:进程 ID
		:return:
		"""
		# time.sleep(random.randint(1, 10))
		# with lock:
		a = int(counter_['number']) + 1
		counter_['number'] = a
		print("字典值:{0}, 进程:{1} 线程:{2}".format(counter_['number'], cpus, j))

	def info(self, name):
		"""
		打印信息
		:param name: 任务名称
		:return:
		"""
		print(f"{name} 列表数量: {len(self.list_)}")
		print(f"{name} 字典信息: {self.dic}")

	def main(self):
		"""
		主函数
		:return:
		"""
		# 需要先在主函数定义局部变量
		pool = Pool(cpu_count())
		dic_ = Manager().dict()
		lock = Manager().Lock()
		data_list = Manager().list()
		# 然后再使用实例变量转换
		self.dic = dic_
		self.list_ = data_list
		# 打印开始实例变量信息
		dic_['number'] = '0'
		self.info(name='开始前')
		for i in range(cpu_count()):
			res = pool.apply_async(func=self.start, args=(i, dic_, data_list,))
		pool.close()
		pool.join()
		# 打印结束后实例变量信息
		self.info('结束后')


if __name__ == '__main__':
	up = Sums()
	up.main()

效果

D:\Program\Python310\python.exe E:/code/y/Python_Demo/多线程/Pool_共享.py
开始前 列表数量: 0
开始前 字典信息: {'number': '0'}
Counter:1, 进程:3 线程:0
Counter:2, 进程:3 线程:1
Counter:3, 进程:3 线程:2
Counter:4, 进程:7 线程:0
Counter:5, 进程:7 线程:1
Counter:6, 进程:6 线程:1
Counter:7, 进程:6 线程:2
Counter:8, 进程:4 线程:0
Counter:9, 进程:6 线程:5
Counter:10, 进程:7 线程:2
Counter:11, 进程:4 线程:1
Counter:12, 进程:4 线程:2
Counter:13, 进程:6 线程:4
Counter:14, 进程:5 线程:0
Counter:15, 进程:6 线程:0
Counter:16, 进程:5 线程:1
Counter:17, 进程:7 线程:5
Counter:18, 进程:1 线程:0
Counter:19, 进程:5 线程:2
Counter:20, 进程:6 线程:3
Counter:21, 进程:7 线程:6
Counter:22, 进程:5 线程:3
Counter:23, 进程:5 线程:4
Counter:24, 进程:7 线程:3
Counter:25, 进程:4 线程:3
Counter:26, 进程:7 线程:4
Counter:27, 进程:2 线程:0
Counter:28, 进程:2 线程:1
结束后 列表数量: 8
结束后 字典信息: {'number': 28}