python3生成随机数据，并存入sqlite3

#!/usr/bin/python #!/usr/bin/env python # -*- coding: utf-8 -*- # @Time    : 2018/6/15 22:46 # @Author  : Kwan # @File    : insert_db.py # @Software: PyCharm import sqlite3 import random import datetime # conn = sqlite3.connect('local.db') # # c = conn.cursor() # # c.execute("insert into system_cfg values(?,?,?)",(2,'test2',1)) # # conn.commit() # # conn.close() def make_date():     # def make_card_number(bits):     #     counter = bits         # number_list = []         # while counter:         #     number_list.append(str(random.randrange(0, 10)))         #     counter -= 1         # return number_list     number_list = [str(x) for x in range(0, 10)]     card_number = ''     card_number = card_number.join(tuple(random.choices(number_list,k=10)))     # card_number = ''     # card_number = card_number.join(tuple(make_card_number(10)))     car_type = random.choice(('m','p'))     localtime = datetime.date.isoformat(datetime.datetime.now())     data_title = ['card_number','car_type','localtime']     data_dict = dict.fromkeys(data_title)     data_dict['card_number'] = card_number     data_dict['car_type'] = car_type     data_dict['localtime'] = localtime     return data_dict def insert_data(list):     conn = sqlite3.connect('test.db')     c = conn.cursor()     try:         id = max(c.execute("select max(id) from monthly_card").fetchall())         max_id = int(id[0])         for data in list:             card_number = data['card_number']             db_car_number = c.execute("select card_number from monthly_card").fetchall()             if card_number in db_car_number:                 break             else:                 car_type = data['car_type']                 localtime = data['localtime']                 max_id += 1                 c.execute("insert into monthly_card values (?,?,?,?)", (max_id, card_number, car_type, localtime))     except sqlite3.OperationalError:         sql = '''create table if not exists monthly_card                 (id int primary key not null,                 card_number text not null,                 car_type text not null,                 valid text not null);'''         c.execute(sql)         id = 0         for data in list:             try:                 card_number = data['card_number']                 db_car_number = c.execute("select card_number from monthly_card").fetchall()                 if card_number in db_car_number:                     break                 else:                     car_type = data['car_type']                     localtime = data['localtime']                     id += 1                     c.execute("insert into monthly_card values (?,?,?,?)", (id, card_number, car_type, localtime))             except sqlite3.OperationalError:                 card_number = data['car_number']                 car_type = data['car_type']                 localtime = data['localtime']                 id += 1                 c.execute("insert into monthly_card values (?,?,?,?)", (id, card_number, car_type, localtime))     # print(type(id_1))     # id = id_1.fetchall()     conn.commit()     conn.close() # def select_data(): #     conn = sqlite3.connect('test.db') #     c = conn.cursor() #     db_car_number = c.execute("select card_number") # test1 = make_date() # my_list = [] # my_list.append(test1) # insert_data(my_list) # print('OK') n = 500 my_list = [] while n:     my_list.append(make_date())     n-=1 insert_data(my_list) print('OK')