功能：将QQ阅读的书记下载，并回传到kindle上

使用模块：

1. selenium

from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import Select
import time
from selenium.webdriver.common.action_chains import ActionChains

2. email

from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email import Encoders, Utils
import smtplib
from email.Header import Header

3. getopt

import getopt, sys
reload(sys)
sys.setdefaultencoding('utf-8')

注意事项：

1. selenium定位以及切换frame（iframe）
   frame标签有frameset、frame、iframe三种，frameset跟其他普通标签没有区别，不会影响到正常的定位，而frame与iframe对selenium定位而言是一样的，selenium有一组方法对frame进行操作。
   所以只要善用以下三个方法，遇到frame分分钟搞定：

driver.switch_to.frame(reference) #切入frame，使用id，或者name属性
driver.switch_to.parent_frame()#切回上一级frame
driver.switch_to.default_content()#切回主页面

2. 命令行传入参数

    try:
        opts, args = getopt.getopt(sys.argv[1:], "f:u:", [])
    except getopt.GetoptError:
        # print help information and exit:
        pass

    for name, value in opts:
            if  name in ("-u"):
                url1 = value
            if name in ("-f"):
                filename1 = value

    print url1,filename1

3. 发邮件

    filename = filename + ".txt"
    server = 'smtp.163.com'
    username = "rufus_tang"
    password = 'y880228'
    from_mail = 'rufus_tang@163.com'
    to_mail = '15825279415_e6b0cb@kindle.cn'

    smtp = smtplib.SMTP()
    smtp.connect(server)
    smtp.login(username, password)

    msg = MIMEMultipart()
    msg['to'] = to_mail
    msg['from'] = from_mail
    msg['Subject'] = "Convert"
    msg['Date'] = Utils.formatdate(localtime=1)

    content = open(filename, 'rb').read()
    att = MIMEText(content, 'base64', 'utf-8')
    att['Content-Type'] = 'application/octet-stream'
    att["Content-Disposition"] = "attachment;filename=\"%s\"" % Header(filename, 'gb2312')

    msg.attach(att)

    smtp.sendmail(msg['from'], msg['to'], msg.as_string())
    smtp.quit()