process_创建进程

import multiprocessing
import time
#方式一
def worker(interval):
    n = 5
    while n > 0:
        print("The time is {0}".format(time.ctime()))
        time.sleep(interval)
        n -= 1

if __name__ == "__main__":
    p = multiprocessing.Process(target = worker, args = (3,))
    p.start()
    print ("p.pid:", p.pid)#15040
    print ("p.name:", p.name)#Process-1
    print ("p.is_alive:", p.is_alive())# True
#方式二

import multiprocessing
import time

class ClockProcess(multiprocessing.Process):
    def __init__(self, interval):
        # multiprocessing.Process.__init__(self)
        super().__init__()
        self.interval = interval

    def run(self):
        n = 5
        while n > 0:
            print("the time is {0}".format(time.ctime()))
            time.sleep(self.interval)
            n -= 1

if __name__ == '__main__':
    p = ClockProcess(3)
    # print(multiprocessing.cpu_count())
    # print(multiprocessing.active_children())#[]
    # print(p.name)