Python多线程处理实例详解【单进程/多进程】

root@72132server:~# cd /root/python/multiprocess/
root@72132server:~/python/multiprocess# ls
multprocess.py
root@72132server:~/python/multiprocess# cat multprocess.py
#!/usr/bin/python
# --*-- coding:utf-8 --*--
from multiprocessing import Process,Lock#启用多进程，与进程锁
import time,os
def sayhi(i):
  print 'hello world!!!', i
  time.sleep(10)
#lock = Lock()
for n in range(100):#执行n=100次
  p = Process(target=sayhi,args=(n,))#调用函数def，若def函数里面有参数，就是使用args带值赋值，若函数没有参数的话就args()为空。
  p.start()
  p.join()#一个进程结束才会继续下一个进程。如果注释这句意思是一百个进程同时发起
root@72132server:~/python/multiprocess#

root@72132server:~# cd /root/python/multiprocess/
root@72132server:~/python/multiprocess# ls
multprocess.py
root@72132server:~/python/multiprocess# vi multprocess.py
root@72132server:~/python/multiprocess# ps -ef | grep multi
root   24064 23930 0 20:45 pts/3  00:00:00 grep multi
root@72132server:~/python/multiprocess# ps -ef | grep multi
root   24066 23930 0 20:45 pts/3  00:00:00 grep multi
root@72132server:~/python/multiprocess# ps -ef | grep multi
root   24069 23930 0 20:45 pts/3  00:00:00 grep multi
root@72132server:~/python/multiprocess# ps -ef | grep multi
root   24071 23930 0 20:45 pts/3  00:00:00 grep multi
root@72132server:~/python/multiprocess# ps -ef | grep multi
root   24073 23930 0 20:46 pts/3  00:00:00 grep multi
root@72132server:~/python/multiprocess# ps -ef | grep multi
root   24075 23930 0 20:46 pts/3  00:00:00 grep multi
root@72132server:~/python/multiprocess#

root@72132server:~/python/multiprocess# vi multprocess.py
root@72132server:~/python/multiprocess# python multprocess.py
hello world!!! 0
hello world!!! 1
hello world!!! 2
hello world!!! 3
hello world!!! 4
hello world!!! 5
hello world!!! 6
hello world!!! 7
hello world!!! 8
hello world!!! 9
hello world!!! 10
hello world!!! 11

root@72132server:~/python/multiprocess# ls
multprocess.py
root@72132server:~/python/multiprocess# cat multprocess.py
#!/usr/bin/python
# --*-- coding:utf-8 --*--
from multiprocessing import Process,Lock#启用多进程，与进程锁
import time,os
def sayhi(i):
  print 'hello world!!!', i
  time.sleep(10)
#lock = Lock()
for n in range(100):#执行n=100次
  p = Process(target=sayhi,args=(n,))#调用函数def，若def函数里面有参数，就是使用args带值赋值，若函数没有参数的话就args()为空。
  p.start()
  p.join()#一个进程结束才会继续下一个进程。如果注释这句意思是一百个进程同时发起
root@72132server:~/python/multiprocess#
root@72132server:~/python/multiprocess# vi multprocess.py
root@72132server:~/python/multiprocess# cat multprocess.py
#!/usr/bin/python
# --*-- coding:utf-8 --*--
from multiprocessing import Process,Lock#启用多进程，与进程锁
import time,os
def sayhi(i):
  print 'hello world!!!', i
  time.sleep(10)
#lock = Lock()
for n in range(100):#执行n=100次
  p = Process(target=sayhi,args=(n,))#调用函数def，若def函数里面有参数，就是使用args带值赋值，若函数没有参数的话就args()为空。
  p.start()
  #p.join()#一个进程结束才会继续下一个进程。如果注释这句意思是一百个进程同时发起
root@72132server:~/python/multiprocess#

root@72132server:~/python/multiprocess# python multprocess.py
hello world!!! 0
hello world!!! 2
hello world!!! 3
hello world!!! 5
hello world!!! 7
hello world!!! 8
hello world!!! 6
hello world!!! 9
hello world!!! 10
hello world!!! 11
hello world!!! 14
hello world!!! 4
hello world!!! 15
hello world!!! 16
hello world!!! 1
hello world!!! 13
hello world!!! 18
hello world!!! 20
hello world!!! 19
hello world!!! 21
hello world!!! 12
hello world!!! 17
hello world!!! 23
hello world!!! 24
hello world!!! 26
hello world!!! 27
hello world!!! 22
hello world!!! 29
hello world!!! 31
hello world!!! 32
hello world!!! 33
hello world!!! 34
hello world!!! 28
hello world!!! 25
hello world!!! 30
hello world!!! 35
hello world!!! 36
hello world!!! 39
hello world!!! 41
hello world!!! 37
hello world!!! 40
hello world!!! 42
hello world!!! 43
hello world!!! 46
hello world!!! 47
hello world!!! 48
hello world!!! 38
hello world!!! 44
hello world!!! 45
hello world!!! 50
hello world!!! 51
hello world!!! 53
hello world!!! 54
hello world!!! 55
hello world!!! 57
hello world!!! 49
hello world!!! 58
hello world!!! 59
hello world!!! 60
hello world!!! 61
hello world!!! 62
hello world!!! 63
hello world!!! 64
hello world!!! 65
hello world!!! 66
hello world!!! 67
hello world!!! 68
hello world!!! 69
hello world!!! 56
hello world!!! 70
hello world!!! 52
hello world!!! 71
hello world!!! 72
hello world!!! 73
hello world!!! 76
hello world!!! 74
hello world!!! 78
hello world!!! 79
hello world!!! 80
hello world!!! 82
hello world!!! 77
hello world!!! 83
hello world!!! 84
hello world!!! 85
hello world!!! 86
hello world!!! 87
hello world!!! 81
hello world!!! 91
hello world!!! 75
hello world!!! 89
hello world!!! 92
hello world!!! 88
hello world!!! 90
hello world!!! 93
hello world!!! 95
hello world!!! 94
hello world!!! 96
hello world!!! 98
hello world!!! 9