Python的几种主动结束程序方式

import sys
sys.exit()
sys.exit(0)
sys.exit(1)

#! /usr/bin/python
#　-*- coding: utf-8 -*-
 
import os
import sys
import signal
 
def kill(pid):
 
 try:
  a = os.kill(pid, signal.SIGKILL)
  # a = os.kill(pid, signal.9) #　与上等效
  print '已杀死pid为%s的进程,　返回值是:%s' % (pid, a)
 except OSError, e:
  print '没有如此进程!!!'
 
if __name__ == '__main__':
 kill(8132)

#coding=utf-8 
import sys,os 
def kill_crawler(id): 
  cmd = 'ps -ef | grep python' 
  f = os.popen(cmd) 
  txt = f.readlines() 
  for line in txt: 
    colum = line.split() 
    pid = colum[1] 
  name = colum[-1] 
  if name.startswith('run_task_'): 
    task_id = name[9:-3] 
    if task_id == id or id =='0': 
    cmd = "kill -9 %d" % int(pid) 
    rc = os.system(cmd) 
    if rc == 0 :  
          print "stop \"%s\" success!!" % name 
        else: 
          print "stop \"%s\" failed!!" % name 
 
if __name__ =='__main__': 
   
  if not len(sys.argv)==2: 
  print u'输入要结束的任务编号，0代表停止所有' 
    sys.exit() 
  id = sys.argv[1] 
  kill_crawler(id) 

 import os
 if __name__ == "__main__":
   pid = 620
   os.popen('taskkill.exe /pid:'+str(pid))