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设要排序的数组A[0]....A[N-1],首先任意选取一个数据（通常选用数组的第一个数）作为关键数据，然后
将所有比它小的数都放到前面，所有比它大的数都放到它后面，这个过程称为一趟快速排序，值得注意的是，
快速排序不是一种稳定的排序算法，也就是说，多个相同的值得相对位置也许会在算法结束时产生变动。
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#!/bin/env python
# -*- coding: utf-8 -*-


import datetime
import smtplib
import os,sys
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from optparse import OptionParser




EMAILHOME=sys.path[0]
#sender name and password
sendername=""
senderpass=""
#list of all receiver (include cc-receiver)
receiverlist=[]
receivertmplist=[]
receivercctmplist=[]




#get the username and pasword
#no try catch here
def getUserAndPass(senderfile):
    upf=open(senderfile)
    username=upf.readline()
    password=upf.readline()
    upf.close()
    return (username.strip(os.linesep),password.strip(os.linesep))




#get the receiver list
#return the list with no ‘‘
def getReceiverList(filename):
    lif=open(filename)
    li=lif.readlines()
    lif.close()
    for x in range(len(li)):
        li[x]=li[x].strip().strip(os.linesep)
    while ‘‘ in li:
        li.remove(‘‘)
    return (li)




#get content of the mail
def getContent(filename):
    contenttmp=‘‘
    if os.path.exists(filename):
        contentf=open(filename)
        contenttmp=contentf.read()
        contentf.close()
    return contenttmp








#parameters process
parser = OptionParser()


parser.add_option(‘-s‘, ‘--sender‘, dest=‘sender‘,
        help=‘file for sender of the mail‘, default=None)
parser.add_option(‘-r‘, ‘--receiver‘, dest=‘receiver‘,
        help=‘list file for receivers of the mail‘,default=None)
parser.add_option(‘-p‘, ‘--cc‘, dest=‘cc‘,
        help=‘list file for receivers of carbon copy‘, default=None)
parser.add_option(‘-t‘, ‘--title‘, dest=‘title‘,
        help=‘title of the email,string‘, default=‘Auto email‘)
parser.add_option(‘-c‘, ‘--content‘, dest=‘content‘,
        help=‘content of the mail,must be a file‘,default=None)
parser.add_option(‘-a‘, ‘--attach‘, dest=‘attach‘,
        help=‘attachment of the file‘,default=None)
parser.add_option(‘-n‘, ‘--nameattach‘, dest=‘nameattach‘,
        help=‘name for attachment of the file‘,default=None)
parser.add_option(‘-l‘, ‘--server‘, dest=‘server‘,
        help=‘log in to the server‘,default=‘smtp.163.com‘)
parser.add_option(‘-i‘, ‘--info‘, dest=‘info‘,
        help=‘information of the content,string,but not file‘,default=‘Auto email‘)
parser.add_option(‘-f‘, ‘--form‘, dest=‘form‘,
        help=‘form of the content,html or plain‘,default=‘plain‘)


(options, args) = parser.parse_args()




#get sender infor
if not options.sender:
    if os.path.exists(EMAILHOME+r‘/sender.list‘):
        (sendername,senderpass)=getUserAndPass(EMAILHOME+r‘/sender.list‘)
        if sendername.strip()=="" or senderpass.strip()=="":
            print ("no sender!")
            exit(0)
    else:
        print ("no sender!")
        exit(0)
else:
    if os.path.exists(options.sender):
        (sendername,senderpass)=getUserAndPass(EMAILHOME+r‘/sender.list‘)
        if sendername.strip()=="" or senderpass.strip()=="":
            print ("no sender!")
            exit(0)
    else:
        print ("the file for sender list does not exists!")
        exit(0)


        
#get list of all receiver
if not options.receiver:
    if os.path.exists(EMAILHOME+r‘/receiver.list‘) or os.path.exists(EMAILHOME+r‘/receivercc.list‘):
        if os.path.exists(EMAILHOME+r‘/receiver.list‘):
            receivertmplist= getReceiverList(EMAILHOME+r‘/receiver.list‘)
        if os.path.exists(EMAILHOME+r‘/receivercc.list‘):
            receivercctmplist= getReceiverList(EMAILHOME+r‘/receivercc.list‘)
        receiverlist=receivertmplist+receivercctmplist
        if len(receiverlist)==0:
            print ("no receiver!")
            exit(0)
    else:
        print ("no receiver list file!")
        exit(0)
else:
    if os.path.exists(options.receiver) or os.path.exists(options.cc):
        if os.path.exists(options.receiver):
            receivertmplist= getReceiverList(options.receiver)
        if os.path.exists(options.cc):
            receivercctmplist= getReceiverList(options.cc)
        receiverlist=receivertmplist+receivercctmplist
        if len(receiverlist):
            print ("no receiver from the list file!")
            exit(0)
    else:
        print ("receiver list file does not exist!")
        exit(0)


if  options.attach and not options.nameattach:
    print ("give a name to the attachment!")
    exit(0)
    


#make a mail    
mailall=MIMEMultipart()    
    
#content of the mail    
if options.content:
    mailcontent =getContent(options.content)
    mailall.attach(MIMEText(mailcontent,options.form,‘utf-8‘))
elif options.info:
    mailcontent = str(options.info)
    mailall.attach(MIMEText(mailcontent,options.form,‘utf-8‘))


#attachment of the mail    
if options.attach:
    mailattach =getContent(options.attach)
    if mailattach !=‘‘:
        contype = ‘application/octet-stream‘
        maintype,subtype=contype.split(‘/‘,1)
        attfile=MIMEBase(maintype,subtype)
        attfile.set_payload(mailattach)
        attfile.add_header(‘Content-Disposition‘,‘attachment‘,options.nameattach)
        print ("attach file prepared!")
        mailall.attach(attfile)


#title,sender,receiver,cc-receiver,
mailall[‘Subject‘]=options.title
mailall[‘From‘]=sendername
mailall[‘To‘]=str(receivertmplist)
if len(receivercctmplist) !=0:
    mailall[‘CC‘]=str(receivercctmplist)




#get the text of mailall
fullmailtext=mailall.as_string()
print ("prepare fullmailtext ok.")
mailconnect = smtplib.SMTP(options.server)
try:
    mailconnect.login(sendername,senderpass)
except Exception as e:
    print ("error when connect the smtpserver with the given username and password !")
    print (e)
    exit(0)


print ("connect ok!")


try:
    mailconnect.sendmail(sendername, receiverlist, fullmailtext)
except Exception as e:
    print ("error while sending the email!")
finally:
    mailconnect.quit()


print (‘email to ‘+str(receiverlist)+‘ over.‘)

print (‘***‘*80)