用弦割法求解非线性方程

# -*- coding: cp936 -*-

import email
import mimetypes
import random
import time
import string
from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText
from email.MIMEImage import MIMEImage
import smtplib

def sendEmail(authInfo, fromAdd, toAdd, subject, plainText, htmlText):

strFrom = fromAdd
strTo = toAdd

server = authInfo.get('server')
user = authInfo.get('user')
passwd = authInfo.get('password')

if not (server and user and passwd) :
print 'incomplete login info, exit now'
return

# 设定root信息
msgRoot = MIMEMultipart('related')
msgRoot['Subject'] = subject
msgRoot['From'] = strFrom
msgRoot['To'] = strTo
msgRoot.preamble = 'This is a multi-part message in MIME format.'

# Encapsulate the plain and HTML versions of the message body in an
# 'alternative' part, so message agents can decide which they want to display.
msgAlternative = MIMEMultipart('alternative')
msgRoot.attach(msgAlternative)

#设定纯文本信息
#        msgText = MIMEText(plainText, 'plain', 'gb2312')
#        msgAlternative.attach(msgText)

#设定HTML信息
msgText = MIMEText(htmlText, 'html', 'gb2312')
msgAlternative.attach(msgText)

#设定内置图片信息
#        fp = open('test.jpg', 'rb')
#        msgImage = MIMEImage(fp.read())
#        fp.close()
#        msgImage.add_header('Content-ID', '<image1>')
#        msgRoot.attach(msgImage)

#发送邮件
smtp = smtplib.SMTP()
#设定调试级别，依情况而定
smtp.set_debuglevel(1)
smtp.connect(server)
smtp.login(user, passwd)
smtp.sendmail(strFrom, strTo, msgRoot.as_string())
#        smtp.sendmail(strFrom, strTo, msgRoot.as_string())
smtp.quit()
#print strFrom+'=='+strTo
return

if __name__ == '__main__' :
authInfo = {}
authInfo['server'] = '127.0.0.1'
authInfo['user'] = 'admin'
authInfo['password'] = 'aaa'
fromAdd = '淘宝网 <shop001@taobao.com>'
toAdd = ['xxx@163.com']
subject = '最新：国庆中秋让利大行动，特价疯狂抢购中...最低一折起！'
plainText = '这里是普通文本'
htmlText = '<a href="http://www.taobaosc.net"><img src="http://pics.taobao.com/bao/album/sys/icon/email_logo.gif" width="568" height="55" border="0"></a><br><br>'
htmlText = htmlText+'<B>淘宝国庆疯狂抢购活动之一：</B> <a href="http://haibao.huoban.taobao.com/tms/topic.php?pid=mm_11964787_0_0&eventid=101075" target="_blank">数码特价专场</a><br><br>'
htmlText = htmlText+'<B>淘宝国庆疯狂抢购活动之二：</B> <a href="http://haibao.huoban.taobao.com/tms/topic.php?pid=mm_11964787_0_0&eventid=101055" target="_blank">MM护肤品专场</a><br><br>'
htmlText = htmlText+'<B>淘宝国庆疯狂抢购活动之三：</B> <a href="http://haibao.huoban.taobao.com/tms/topic.php?pid=mm_11964787_0_0&eventid=101067" target="_blank">09秋冬饰品施华洛世奇专场</a><br><br>'
htmlText = htmlText+'<B>淘宝国庆疯狂抢购活动之四：</B> <a href="http://haibao.huoban.taobao.com/tms/topic.php?pid=mm_11964787_0_0&eventid=101074" target="_blank">一折起国庆大放价</a><br><br>'
htmlText = htmlText+'<B>更多国庆特价活动，请猛击这里</B> >>> <a href="http://www.taobaosc.net" target="_blank">淘宝十一国庆特价汇总</a> <<<<br><br>'

#收信人邮件地址列表
email_file='email_list.txt'
email_all=open(email_file,"r")
emails=email_all.readlines()

#记录发送进度
loginfo=open("email_log.txt","a")

i=0
for line in emails:
try:
if i%100==0:
loginfo.close()
loginfo=open("email_log.txt","a")
time.sleep(5)

i=i+1
fromAdd = '淘宝网 <shop'+str(random.randint(0,9999))+'@taobao.com>'
toAdd = str(line[0:-1])
#print fromAdd,toAdd,'==',i

sendEmail(authInfo, fromAdd, toAdd, subject, plainText, htmlText)
loginfo.write(toAdd+'\t'+str(i)+'\n')

except:
continue

loginfo.close()