Python3を使用してExcelデータを読み取り、MySQLに保存する方法

import xlrd
import pymysql
from datetime import datetime
from xlrd import xldate_as_tuple

data = xlrd.open_workbook("D:/sales_data.xls") //读取D盘中名为sales_data的excel表格
table_one = data.sheet_by_index(0)      //根据sheet索引获取sheet的内容
table_two = data.sheet_by_index(1)

db = pymysql.connect("localhost", "root", "gaishi123", "sales_data", use_unicode=True, charset="utf8")

for site in sites:
 # 遍历sheet1
 for nrows_one in range(1, int(table_one.nrows)):
  if table_one.cell_value(nrows_one, 0) == site:
   payday = table_one.cell_value(0, 8)
   date = datetime(*xldate_as_tuple(payday, 0))
   payday = date.strftime('%Y/%m/%d')         # 出票日期
   sales = float(table_one.cell_value(nrows_one, 1))     # 销量
   quantity_ticket = int(table_one.cell_value(nrows_one, 2))   # 票数
   rate_electronic = float(table_one.cell_value(nrows_one, 3))  # 电子直销占比
   sales_thanlastweek = float(table_one.cell_value(nrows_one, 4))  # 销量同比上周
   sales_thanlastyear = float(table_one.cell_value(nrows_one, 5))  # 销量同比去年
   break
 # 遍历sheet2
 for nrows_two in range(1, int(table_two.nrows)):
  if table_one.cell_value(nrows_two, 0) == site:
   session = int(table_two.cell_value(nrows_two, 1))     # 访问量
   rate_conversion = float(table_two.cell_value(nrows_two, 2))  # 转化率
   rate_paysuccess = float(table_two.cell_value(nrows_two, 3))  # 支付成功率
   session_thanlastweek = float(table_two.cell_value(nrows_two, 4)) # 访问量同比上周
   break
 # 将数据存入数据库
 sql = "insert into sales_data(SITE, PAYDAY, SALES, QUANTITY_TICKET, RATE_ELECTRONIC, SALES_THANLASTWEEK," \
   "SALES_THANLASTYEAR, SESSION, SESSION_THANLASTWEEK, RATE_CONVERSION, RATE_PAYSUCCESS)" \
   " values ('%s','%s', %f, %d, %f, %f, %f, %d, %f, %f, %f)" %\
   (site, payday, sales, quantity_ticket, rate_electronic, sales_thanlastweek, sales_thanlastyear,
   session, session_thanlastweek, rate_conversion, rate_paysuccess)
 try:
  # 使用 cursor() 方法创建一个游标对象 cursor
  cursor = db.cursor()
  cursor.execute(sql)
 except Exception as e:
  # 发生错误时回滚
  db.rollback()
  print(str(e))
 else:
  db.commit() # 事务提交
  print('事务处理成功')