一、示例代码:
from multiprocessing import Process
import time
import os
def child_1(interval):
print('子进程(%s)开始执行,父进程为(%s)' % (os.getpid(), os.getppid()))
t_start = time.time()
time.sleep(interval)
t_end = time.time()
print("子进程(%s)执行时间为'%0.1f'秒" % (os.getpid(), t_end - t_start))
def child_2(interval):
print('子进程(%s)开始执行,父进程为(%s)' % (os.getpid(), os.getppid()))
t_start = time.time()
time.sleep(interval)
t_end = time.time()
print("子进程(%s)执行时间为'%0.1f'秒" % (os.getpid(), t_end - t_start))
if __name__ == '__main__':
print('——父进程开始执行——')
print('父进程PID:%s' % os.getpid())
p1 = Process(target=child_1, args=(1,))
p2 = Process(target=child_2, args=(2,))
p1.start()
p2.start()
print('p1.name=%s' % p1.name)
print('p1.pid=%s' % p1.pid)
print('p2.name=%s' % p2.name)
print('p2.pid=%s' % p2.pid)
print('——等待子进程——')
p1.join()
p2.join()
print('——父进程执行结束——')
二、运行结果: