Home  >  Article  >  Backend Development  >  怎么生成优惠券并将优惠券存入Mysql

怎么生成优惠券并将优惠券存入Mysql

PHPz
PHPzOriginal
2016-06-06 20:32:562512browse

怎么生成优惠券并将优惠券存入Mysql

生成优惠券并将优惠券存入Mysql的方法:

#coding:utf-8

import random
import string
import MySQLdb


def gen_charint(filename, width =4, num=5):

    f = open(filename, 'wb')
    charint = string.digits + string.letters
    for i in range(num):
        verify = [random.choice(charint) for j in range(width)]
        verify = ''.join(verify) + '\n'
        f.write(verify)
    f.close()

def store_mysql(filepath):

    conn = MySQLdb.connect(
            host="localhost",
            port=3306,
            user='root',
            passwd='root',
            db='test',
            charset='utf8'
        )

    cursor = conn.cursor()
    # 判断表是否存在
    cursor.execute('show tables in test')
    tables = cursor.fetchall()
    findtables = False
    for table in tables:
        if 'coupon' in table:
            findtables = True
    # 下面的sql语句中的符号为反引号
    # 由于刚开始设置code的字段长度偏小,报错后,调整这里的长度不起作用,查看数据库并未相应改变,需要手动更改数据库该字段长度
    if not findtables:
        cursor.execute('''
        CREATE TABLE `coupon24`(
        `id` INT NOT NULL AUTO_INCREMENT,
        `coupon` VARCHAR(66) NOT NULL,
        PRIMARY KEY(`id`));
        ''')

    f = open(filepath, 'rb')
    for line in f.readlines():
        code = line.split()
        cursor.execute('insert into coupon24 (coupon) VALUES (%s)', code)

    conn.commit()
    cursor.close()
    conn.close()

if __name__ == '__main__':
    
    filename = 'result24.txt'
    width = 4
    num = 11
    gen_charint(filename, width, num)
    store_mysql(filename)

注意点:

1、用列表生成式生成随机字数和数字,并通过join连接,并注意加上换行符

2、创建表时,表名和字段名均要用反引号,即TAB键上方的那个按键

更多相关知识,请访问PHP中文网

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn