多进程 案例

from multiprocessing import Process, Queue

class MyProcess(Process):
    def __init__(self, q, i):
        super().__init__()
        self.q = q
        self.i = i

    def run(self):
        print('子进程%s 开始put数据' % self.i)
        self.q.put('我是%s 通过Queue通信' % self.i)
        self.q.put('我是%s 通过Queue通信' % 2)

if __name__ == '__main__':
    q = Queue()

    process_list = []
    p = MyProcess(q, 0)
    p.start()

    p.join()

    print('主进程获取Queue数据')
    print(q.get())
    print(q.get())

    print('结束测试')

（更新）主进程向子进程传递数据

from multiprocessing import Process, Queue

class MyProcess(Process):
    def __init__(self, q, i, data):
        super().__init__()
        self.q = q
        self.i = i
        self.data = data

    def run(self):
        print('子进程%s 开始put数据' % self.i)
        self.q.put(self.data[0]+1)
        self.q.put(self.data[1]+1)
        self.q.put(self.data[2]+1)


if __name__ == '__main__':
    q = Queue()
    data = [1, 2, 3]  # 要传递的列表

    process_list = []

    p = MyProcess(q, 0, data)
    p.start()

    p.join()

    print('主进程获取Queue数据')
    print(q.get())
    print(q.get())
    print(q.get())
    print('结束测试')