通过随机random 和MD5两种方式生成，写入本地并且保存在数据库

import random
import string
import hashlib
import time
import pymysql
import re
import sys


def main():
    key = input('请选择激活码生成方式：\n选择random方法请按0 ;\n选择hash md5方法请按1 ;\n退出请按q->')
    if key == str(1):
        codes = str(get_idcode())
        with open("md5_code.txt", "w", encoding='utf-8') as f:
            f.write(codes)
        stra = str(get_idcode().keys()) # dict_keys(['1023DF3EB90710731A39BF84E5EF2AD6'])
        strb = str(get_idcode().values())
        code = re.split(r'\'',stra)[1]  # 正则提取字符串部分
        timestrap = re.split(r'\'', strb)[1]
        sql = which_table(1,code,timestrap)
        conn_mysql(sql)
        print('\nsuccessful')

    elif key == str(0):
        # print(chars)
        start_time = time.time()
        codes = [create_ticket() for i in range(1, 21)]  # 一次生成20个
        with open("random_code.txt", "w", encoding='utf-8') as f:
            f.write(str(codes).replace('[', '').replace(']', ''))
        i = 1
        while (i <= 20):
            stra = str(create_ticket().keys())
            # print(stra)
            strb = str(create_ticket().values())
            code = re.split(r'\'', stra)[1]
            # print(code)
            timestrap = re.split(r'\'', strb)[1]
            sql = which_table(0, code, timestrap)
            conn_mysql(sql)
            i += 1
        print('\nsuccessful')
        end_time = time.time()
        use_time = end_time - start_time
        print('random-耗时{:.4f}秒'.format(use_time))    # 一口气记录二十条有点久 加个计时看看耗时情况
    elif key == 'q':
        sys.exit()
    else:                                # 容错处理
        print('输入有误，请重试')
        print('-*'*20)
        main()                           # 输入错误则重新执行

# 生成随机激活码
def create_ticket():
    chars = string.ascii_uppercase + string.digits      # 大写字母和数字的字符串集合
    code = random.choices(chars, k=16)                  # 从chars随机生成16位的激活码
    # print(type(code))                                 # <class 'list'>
    str_code = ''.join(code)                            # 列表转字符串
    create_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime())         # strftime定义时间显示样式
    x = {str_code:create_time}                                                 # 拼接成字典
    return x

# 生成唯一的激活码 MD5
def get_idcode():
    account = 'l2279387573'    # 模拟用户账号
    now = round(time.time())   # 四舍五入一下 不需要小数点
    str_code = str(now)+account    # 字符串拼接
    hash_md5 = hashlib.md5()       # 开始哈希
    hash_md5.update(str_code.encode('utf-8'))
    upper_code = hash_md5.hexdigest().upper()    # 将md5加密后的值upper后赋给变量 upper_code
    create_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime())   # strftime定义时间显示样式
    dict = {upper_code:create_time}    # 将upper_code,create_time拼接成字典返回出去
    return dict


# 连接mysql数据库
def conn_mysql(sql):
    db = pymysql.connect(host='localhost',
                         port=3306,
                         user='写自己的',
                         password='写自己的',
                         db='写自己的',

                         )
    cursor = db.cursor()
    try:
        cursor.execute(sql)
        db.commit()
    except:
        db.rollback()
    db.close()

# 通过用户输入 选择不同的SQL语句，主要是为了插入到不同的表
def which_table(num,a,b):
    if num == 0:
        sql = "insert into random_table (activation_code,create_date) values ('%s','%s')"%(a,b)
    elif num ==1:
        sql = "insert into md5_table (activation_code,create_date) values ('%s','%s')"%(a,b)
    return sql


if __name__ == "__main__":
    main()