davidbj

function  demo(num){
  if(num<=1){
    return 1;
  }
  return num*demo(num-1);
}

alert(demo(5))    //stdout:120

davidbj

#!/usr/bin/env python
#-*- coding:utf-8 -*-

import threading
import time

class Mythreading(threading.Thread):
  def __init__(self):
    threading.Thread.__init__(self)
    #self.daemon=True

davidbj

#!/usr/bin/env python
#-*- coding:utf-8 -*-
#Function: python yield demo


Queue=[1, 2, 3, 4, 5, 6]

def foo(regex):
  print "start..."
  while True:

davidbj

I. open a tar file
   import tarfile
   import glob
   t = tarfile.open("foo.tar", 'w')
   t.add("README")
   for pyfile in glob.glob('*.py'):
       t.add(pyfile)
    t.close()
    
II.

davidbj

I.Example of how to read a compressed file:

  import gzip
  f = gzip.open('file.tar.gz', 'rb')
  file_content = f.read()
  f.close()

II.Example of how to create a compressed GZIP file:

  import gzip

davidbj

I.pickle exmaple

"""object save to file."""

import pickle

obj = Someobject()            
f = open(filename, 'wb')    
pickle.dump(obj, f)
f.close()

davidbj

1.rpm install puppetlabs-release
    rpm -ivh http://yum.puppetlabs.com/el/6.4/products/i386/puppetlabs-release-6-6.noarch.rpm
    sudo yum clean all
    
2.Install puppet-server and puppet-agent
    sudo yum install puppet-server puppet

davidbj

1. yum install inxi for Centos

yum install inxi

2.View help information

inxi --help

davidbj

I. change yum source
    vim /etc/yum.repos.d/nginx.repo
    [nginx]
    name=nginx repo
    baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
    gpgcheck=0
    enabled=1

II. yum install nginx
    yum install nginx -y 

davidbj

#!/usr/bin/env python
#-*- coding:utf-8 -*-

import os
impost sys

def walk(path):
    isdir, isfile, join = os.paht.isdir, os.path.isfile, os.path.join
    lsdir = os.listdir(path)
    dirs = [i for i in lsdir if isdir(join(path, i))]