进程中t.start(), t.daemon() t.jion()的使用

 1 #!/usr/bin/env python
 2 import multiprocessing
 3 import time
 4 def f1(a1):
 5     time.sleep(2)
 6     print(a1)
 7 if __name__ == ‘__main__‘:
 8     t = multiprocessing.Process(target=f1,args=(11,))
 9     t.daemon = False
10     t.start()
11     t.join(2)
12     t2 = multiprocessing.Process(target=f1, args=(22,))
13     t2.daemon = False
14     t2.start()
15     t.join(1)
16     print("end")