11月13日更新：把所有部分函式化

環境：Python 3.6

from openpyxl import load_workbook #excel
import datetime
from smtplib import SMTP #郵件
from time import sleep
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase #附件
from email import encoders #轉碼

#獲得昨天的日期，並把名字改成0901這樣的格式
 

def getYesterday():
    today = datetime.date.today()
    oneday = datetime.timedelta(days = 1)
    yesterday = today - oneday
    date_yes = yesterday.strftime("%m%d")
    return date_yes

#獲得日報的標準名稱
def get_ribao():
    ribao_name = '【基礎經營-實體1】：“乘風破浪”百日衝刺報表'+getYesterday()+'.xlsx'
    ribao_title =
 
 '請收閱：'+'【基礎經營-實體1】：“乘風破浪”百日衝刺報表'+getYesterday()
    return ribao_name, ribao_title
    # print(ribao_name)
    # print(ribao_title)

#從日報中獲取郵件正文內容
def get_ribao_value(ribao_name):
    wb = load_workbook(ribao_name)
    sheet1 = wb['門店通報']
    body = sheet1['A2'].value + '\n\n' + '注：這封郵件是通過python傳送，通過網頁端可正常顯示；outlook可能會附件為.dat格式，無法開啟；foxmail低版本可能無法收到附件，升級到7.2及以上即可！'
 

    return body
    # print(body)

#讀取收件人列表
def get_receiver(sheetname):
    receive_list = []
    receive_mail = load_workbook(filename='/Users/Administrator/Desktop/報表/日報/日報收件人.xlsx')
    sheet = receive_mail[sheetname]
    max_row = sheet.max_row + 1
    for rowNum in range(2, max_row):
        receive_list.append(sheet.cell(row=rowNum,column=2).value)
    return receive_list

#開始新增附件了
def put_attachment(ribao_name):
    with open(ribao_name,'rb') as f:
        #這裡附件的MIME和檔名，這裡是xlsx型別
        mime = MIMEBase('xlsx','xlsx',filename=ribao_name)
        #加上必要的頭資訊
        mime.add_header('Content-Disposition','attachment',filename=('gb2312', '', ribao_name))
        mime.add_header('Content-ID','<0>')
        mime.add_header('X-Attachment-Id','0')
        #把附件的內容讀進來
        mime.set_payload(f.read())
        #用Base64編碼
        encoders.encode_base64(mime)
        msg.attach(mime)

#開始email板塊了
def main():
    receive_list = get_receiver('收件人')
    chaosong_list = get_receiver('抄送人')
    fromAddr = '******' #發件人
    myPass = '******' #發件人密碼
    if len(receive_list) == 0:
        toAddr = ''
    else:
        toAddr = ','.join(receive_list) #收件人
    if len(chaosong_list) == 0:
        acc = ''
    else:
        acc = ','.join(chaosong_list) #抄送人
    ribao_name = get_ribao()[0]
    ribao_title = get_ribao()[1]
    body = get_ribao_value(ribao_name)
    global msg
    msg = MIMEMultipart()
    msg['From'] = fromAddr
    msg['To'] = toAddr
    msg['Subject'] = ribao_title
    msg['Cc'] = acc
    msg.attach(MIMEText(body))
    put_attachment(ribao_name)
    server = SMTP('mail.sh.ctc.com')
    server.starttls()
    server.login(fromAddr, myPass)
    server.send_message(msg)
    server.quit()
    print("日報已經發送完成！")
    sleep(3)

if __name__ =="__main__":
    main()