信号捕获在window上测试没有生效，在Linux上测试生效

 1 import multiprocessing
 2 import time
 3 import signal
 4 import os
 5 import random
 6 
 7 sid = 0   # 全局变量，进程之间的变量是否独立测试
 8 
 9 def myhandler(signum, frame):
10     global sid
11     print(signum)
12     print(sid)
13     print("del del")
14     exit()
15 
16 def test():
17     global sid
18     signal.signal(signal.SIGTERM, myhandler) # 定义捕获信号和关闭时的处理函数
19     counter = 0
20     sid = random.randint(0,100)
21     while True:
22         print(counter, sid)
23         counter +=1
24         time.sleep(1)
25 
26 
27 if __name__=="__main__":
28     p = multiprocessing.Process(target=test)
29     p.start()
30     p1 = multiprocessing.Process(target=test)
31     p1.start()
32     p1.join(5)
33     if p1.is_alive():
34         print(p1.pid)
35         print("Process Timeout, be Terminated !!!")
36         p1.terminate() # 发送关闭信号
37         p1.join()
38         p.terminate()
39         p.join()
40     print(sid)