#coding=utf8 
import signal,os,time 
def onsignal_term(a,b): 
  print '收到SIGTERM信号' 
 
def onsignal_quit(a,b): 
  print '收到SIGQUIT信号' 
 
def onsignal_alrm(a,b): 
  print '收到SIGALRM信号' 
   
signal.signal(signal.SIGTERM,onsignal_term) 
signal.signal(signal.SIGQUIT,onsignal_quit) 
signal.signal(signal.SIGALRM,onsignal_alrm) 
signal.alarm(10) 
while 1: 
  print '进程id：',os.getpid() 
  time.sleep(2) 

import os,signal,time 
os.kill(5097,signal.SIGTERM) 
time.sleep(5) 
#如果进程被终止后面的信号不会起作用 
os.kill(4976,signal.SIGINT) 
os.kill(5006,signal.SIGKILL) 
os.kill(5071,signal.SIGQUIT) 
os.kill(5097,signal.SIGALRM)