读取天气信息，并通过QQ邮箱发送至指定邮箱

from email.mime.text import MIMEText
from email.header import Header
from smtplib import SMTP_SSL

import urllib.request
import time

def get_weather_msg():
    page = urllib.request.urlopen("http://www.weather.com.cn/weather/101200101.shtml")
    text = page.read().decode("utf8")
    #print(text)
    startNum = text.find("（今天）</h1>")
    endNum = text.find("（明天）</h1>")
    text = text[startNum-3:endNum]
    #print(text)
    date = text[0:3]
    #print("**************")
    startNum = text.find("class=\"wea\">")
    endNum = text.find("<p class=\"tem\">")
    weather = text[startNum+12:endNum-5]

    startNum = text.find("<p class=\"tem\">")
    endNum = text.find("℃</i>")
    tempreture = text[endNum-2:endNum]

    message = ("今天" + date + "\n" + "天气："+ weather+ "\n" + "温度："+ tempreture +"℃" + "\n")
    tempreture = float(tempreture)
    if tempreture > 30:
        message = message + "高温"
    elif tempreture < 10:
        message = message + "低温"
    else:
        message = message + "温度适中"

    #print("今天" + date)
    #print("天气："+ weather)
    #print("温度："+ tempreture +"℃")
    return (message)

def send_weather_by_mail(content):
    #qq邮箱smtp服务器
    host_server = 'smtp.qq.com'
    #sender_qq为发件人的qq号码
    sender_qq = '150xxxxx'
    #pwd为qq邮箱的授权码
    pwd = 'Lxxxxx'
    #发件人的邮箱
    sender_qq_mail = '150xxxxx@qq.com'
    #收件人邮箱
    receiver = 'xxxxx@xxxx.com'
    #邮件的正文内容
    mail_content = content
    #邮件标题
    mail_title = 'xxx的邮件'

    #ssl登录
    smtp = SMTP_SSL(host_server)
    #set_debuglevel()是用来调试的。参数值为1表示开启调试模式，参数值为0关闭调试模式
    smtp.set_debuglevel(0)
    smtp.ehlo(host_server)
    smtp.login(sender_qq, pwd)

    msg = MIMEText(mail_content, "plain", 'utf-8')
    msg["Subject"] = Header(mail_title, 'utf-8')
    msg["From"] = sender_qq_mail
    msg["To"] = receiver
    smtp.sendmail(sender_qq_mail, receiver, msg.as_string())
    smtp.quit()     

checkTime = 0
while 1:
    checkTime += 1
    send_weather_by_mail(get_weather_msg())
    print(">>>"+str(checkTime)+">>>")
    time.sleep(10)